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ICD 10 Code T45

Poisoning by, adverse effect of and underdosing of primarily systemic and hematological agents, not elsewhere classified
“Primarily systemic and hematological agents, NEC” for short

T45 is a non-billable ICD-10 code for Poisoning by, adverse effect of and underdosing of primarily systemic and hematological agents, not elsewhere classified. It should not be used for HIPAA-covered transactions as a more specific code is available to choose from below.

↓ See below for any exclusions, inclusions or special notations

More specific codes
7th Character selection:

The appropriate 7th character is to be added to each code from category T45

  • A - initial encounter
  • D - subsequent encounter
  • S - sequela
More specific codes:

A more specific code should be selected. ICD-10-CM codes are to be used and reported at their highest number of characters available. A 3-character code is to be used only if it is not further subdivided. A code is invalid if it has not been coded to the full number of characters required for that code, including the 7th character, if applicable.

Select Billable Codes to view only billable codes under T45 or select the Tabular List to view all codes under T45 in hierarchical order.

Listed below are all Medicare Accepted ICD-10 codes under T45 for Poisoning by, adverse effect of and underdosing of primarily systemic and hematological agents, not elsewhere classified. These codes can be used for all HIPAA-covered transactions.

  • Billable - T45.0X1A Poisoning by antiallergic and antiemetic drugs, accidental (unintentional), initial encounter
  • Billable - T45.0X1D Poisoning by antiallergic and antiemetic drugs, accidental (unintentional), subsequent encounter
  • Billable - T45.0X1S Poisoning by antiallergic and antiemetic drugs, accidental (unintentional), sequela
  • Billable - T45.0X2A Poisoning by antiallergic and antiemetic drugs, intentional self-harm, initial encounter
  • Billable - T45.0X2D Poisoning by antiallergic and antiemetic drugs, intentional self-harm, subsequent encounter
  • Billable - T45.0X2S Poisoning by antiallergic and antiemetic drugs, intentional self-harm, sequela
  • Billable - T45.0X3A Poisoning by antiallergic and antiemetic drugs, assault, initial encounter
  • Billable - T45.0X3D Poisoning by antiallergic and antiemetic drugs, assault, subsequent encounter
  • Billable - T45.0X3S Poisoning by antiallergic and antiemetic drugs, assault, sequela
  • Billable - T45.0X4A Poisoning by antiallergic and antiemetic drugs, undetermined, initial encounter
  • Billable - T45.0X4D Poisoning by antiallergic and antiemetic drugs, undetermined, subsequent encounter
  • Billable - T45.0X4S Poisoning by antiallergic and antiemetic drugs, undetermined, sequela
  • Billable - T45.0X5A Adverse effect of antiallergic and antiemetic drugs, initial encounter
  • Billable - T45.0X5D Adverse effect of antiallergic and antiemetic drugs, subsequent encounter
  • Billable - T45.0X5S Adverse effect of antiallergic and antiemetic drugs, sequela
  • Billable - T45.0X6A Underdosing of antiallergic and antiemetic drugs, initial encounter
  • Billable - T45.0X6D Underdosing of antiallergic and antiemetic drugs, subsequent encounter
  • Billable - T45.0X6S Underdosing of antiallergic and antiemetic drugs, sequela
  • Billable - T45.1X1A Poisoning by antineoplastic and immunosuppressive drugs, accidental (unintentional), initial encounter
  • Billable - T45.1X1D Poisoning by antineoplastic and immunosuppressive drugs, accidental (unintentional), subsequent encounter
  • Billable - T45.1X1S Poisoning by antineoplastic and immunosuppressive drugs, accidental (unintentional), sequela
  • Billable - T45.1X2A Poisoning by antineoplastic and immunosuppressive drugs, intentional self-harm, initial encounter
  • Billable - T45.1X2D Poisoning by antineoplastic and immunosuppressive drugs, intentional self-harm, subsequent encounter
  • Billable - T45.1X2S Poisoning by antineoplastic and immunosuppressive drugs, intentional self-harm, sequela
  • Billable - T45.1X3A Poisoning by antineoplastic and immunosuppressive drugs, assault, initial encounter
  • Billable - T45.1X3D Poisoning by antineoplastic and immunosuppressive drugs, assault, subsequent encounter
  • Billable - T45.1X3S Poisoning by antineoplastic and immunosuppressive drugs, assault, sequela
  • Billable - T45.1X4A Poisoning by antineoplastic and immunosuppressive drugs, undetermined, initial encounter
  • Billable - T45.1X4D Poisoning by antineoplastic and immunosuppressive drugs, undetermined, subsequent encounter
  • Billable - T45.1X4S Poisoning by antineoplastic and immunosuppressive drugs, undetermined, sequela
  • Billable - T45.1X5A Adverse effect of antineoplastic and immunosuppressive drugs, initial encounter
  • Billable - T45.1X5D Adverse effect of antineoplastic and immunosuppressive drugs, subsequent encounter
  • Billable - T45.1X5S Adverse effect of antineoplastic and immunosuppressive drugs, sequela
  • Billable - T45.1X6A Underdosing of antineoplastic and immunosuppressive drugs, initial encounter
  • Billable - T45.1X6D Underdosing of antineoplastic and immunosuppressive drugs, subsequent encounter
  • Billable - T45.1X6S Underdosing of antineoplastic and immunosuppressive drugs, sequela
  • Billable - T45.2X1A Poisoning by vitamins, accidental (unintentional), initial encounter
  • Billable - T45.2X1D Poisoning by vitamins, accidental (unintentional), subsequent encounter
  • Billable - T45.2X1S Poisoning by vitamins, accidental (unintentional), sequela
  • Billable - T45.2X2A Poisoning by vitamins, intentional self-harm, initial encounter
  • Billable - T45.2X2D Poisoning by vitamins, intentional self-harm, subsequent encounter
  • Billable - T45.2X2S Poisoning by vitamins, intentional self-harm, sequela
  • Billable - T45.2X3A Poisoning by vitamins, assault, initial encounter
  • Billable - T45.2X3D Poisoning by vitamins, assault, subsequent encounter
  • Billable - T45.2X3S Poisoning by vitamins, assault, sequela
  • Billable - T45.2X4A Poisoning by vitamins, undetermined, initial encounter
  • Billable - T45.2X4D Poisoning by vitamins, undetermined, subsequent encounter
  • Billable - T45.2X4S Poisoning by vitamins, undetermined, sequela
  • Billable - T45.2X5A Adverse effect of vitamins, initial encounter
  • Billable - T45.2X5D Adverse effect of vitamins, subsequent encounter
  • Billable - T45.2X5S Adverse effect of vitamins, sequela
  • Billable - T45.2X6A Underdosing of vitamins, initial encounter
  • Billable - T45.2X6D Underdosing of vitamins, subsequent encounter
  • Billable - T45.2X6S Underdosing of vitamins, sequela
  • Billable - T45.3X1A Poisoning by enzymes, accidental (unintentional), initial encounter
  • Billable - T45.3X1D Poisoning by enzymes, accidental (unintentional), subsequent encounter
  • Billable - T45.3X1S Poisoning by enzymes, accidental (unintentional), sequela
  • Billable - T45.3X2A Poisoning by enzymes, intentional self-harm, initial encounter
  • Billable - T45.3X2D Poisoning by enzymes, intentional self-harm, subsequent encounter
  • Billable - T45.3X2S Poisoning by enzymes, intentional self-harm, sequela
  • Billable - T45.3X3A Poisoning by enzymes, assault, initial encounter
  • Billable - T45.3X3D Poisoning by enzymes, assault, subsequent encounter
  • Billable - T45.3X3S Poisoning by enzymes, assault, sequela
  • Billable - T45.3X4A Poisoning by enzymes, undetermined, initial encounter
  • Billable - T45.3X4D Poisoning by enzymes, undetermined, subsequent encounter
  • Billable - T45.3X4S Poisoning by enzymes, undetermined, sequela
  • Billable - T45.3X5A Adverse effect of enzymes, initial encounter
  • Billable - T45.3X5D Adverse effect of enzymes, subsequent encounter
  • Billable - T45.3X5S Adverse effect of enzymes, sequela
  • Billable - T45.3X6A Underdosing of enzymes, initial encounter
  • Billable - T45.3X6D Underdosing of enzymes, subsequent encounter
  • Billable - T45.3X6S Underdosing of enzymes, sequela
  • Billable - T45.4X1A Poisoning by iron and its compounds, accidental (unintentional), initial encounter
  • Billable - T45.4X1D Poisoning by iron and its compounds, accidental (unintentional), subsequent encounter
  • Billable - T45.4X1S Poisoning by iron and its compounds, accidental (unintentional), sequela
  • Billable - T45.4X2A Poisoning by iron and its compounds, intentional self-harm, initial encounter
  • Billable - T45.4X2D Poisoning by iron and its compounds, intentional self-harm, subsequent encounter
  • Billable - T45.4X2S Poisoning by iron and its compounds, intentional self-harm, sequela
  • Billable - T45.4X3A Poisoning by iron and its compounds, assault, initial encounter
  • Billable - T45.4X3D Poisoning by iron and its compounds, assault, subsequent encounter
  • Billable - T45.4X3S Poisoning by iron and its compounds, assault, sequela
  • Billable - T45.4X4A Poisoning by iron and its compounds, undetermined, initial encounter
  • Billable - T45.4X4D Poisoning by iron and its compounds, undetermined, subsequent encounter
  • Billable - T45.4X4S Poisoning by iron and its compounds, undetermined, sequela
  • Billable - T45.4X5A Adverse effect of iron and its compounds, initial encounter
  • Billable - T45.4X5D Adverse effect of iron and its compounds, subsequent encounter
  • Billable - T45.4X5S Adverse effect of iron and its compounds, sequela
  • Billable - T45.4X6A Underdosing of iron and its compounds, initial encounter
  • Billable - T45.4X6D Underdosing of iron and its compounds, subsequent encounter
  • Billable - T45.4X6S Underdosing of iron and its compounds, sequela
  • Billable - T45.511A Poisoning by anticoagulants, accidental (unintentional), initial encounter
  • Billable - T45.511D Poisoning by anticoagulants, accidental (unintentional), subsequent encounter
  • Billable - T45.511S Poisoning by anticoagulants, accidental (unintentional), sequela
  • Billable - T45.512A Poisoning by anticoagulants, intentional self-harm, initial encounter
  • Billable - T45.512D Poisoning by anticoagulants, intentional self-harm, subsequent encounter
  • Billable - T45.512S Poisoning by anticoagulants, intentional self-harm, sequela
  • Billable - T45.513A Poisoning by anticoagulants, assault, initial encounter
  • Billable - T45.513D Poisoning by anticoagulants, assault, subsequent encounter
  • Billable - T45.513S Poisoning by anticoagulants, assault, sequela
  • Billable - T45.514A Poisoning by anticoagulants, undetermined, initial encounter
  • Billable - T45.514D Poisoning by anticoagulants, undetermined, subsequent encounter
  • Billable - T45.514S Poisoning by anticoagulants, undetermined, sequela
  • Billable - T45.515A Adverse effect of anticoagulants, initial encounter
  • Billable - T45.515D Adverse effect of anticoagulants, subsequent encounter
  • Billable - T45.515S Adverse effect of anticoagulants, sequela
  • Billable - T45.516A Underdosing of anticoagulants, initial encounter
  • Billable - T45.516D Underdosing of anticoagulants, subsequent encounter
  • Billable - T45.516S Underdosing of anticoagulants, sequela
  • Billable - T45.521A Poisoning by antithrombotic drugs, accidental (unintentional), initial encounter
  • Billable - T45.521D Poisoning by antithrombotic drugs, accidental (unintentional), subsequent encounter
  • Billable - T45.521S Poisoning by antithrombotic drugs, accidental (unintentional), sequela
  • Billable - T45.522A Poisoning by antithrombotic drugs, intentional self-harm, initial encounter
  • Billable - T45.522D Poisoning by antithrombotic drugs, intentional self-harm, subsequent encounter
  • Billable - T45.522S Poisoning by antithrombotic drugs, intentional self-harm, sequela
  • Billable - T45.523A Poisoning by antithrombotic drugs, assault, initial encounter
  • Billable - T45.523D Poisoning by antithrombotic drugs, assault, subsequent encounter
  • Billable - T45.523S Poisoning by antithrombotic drugs, assault, sequela
  • Billable - T45.524A Poisoning by antithrombotic drugs, undetermined, initial encounter
  • Billable - T45.524D Poisoning by antithrombotic drugs, undetermined, subsequent encounter
  • Billable - T45.524S Poisoning by antithrombotic drugs, undetermined, sequela
  • Billable - T45.525A Adverse effect of antithrombotic drugs, initial encounter
  • Billable - T45.525D Adverse effect of antithrombotic drugs, subsequent encounter
  • Billable - T45.525S Adverse effect of antithrombotic drugs, sequela
  • Billable - T45.526A Underdosing of antithrombotic drugs, initial encounter
  • Billable - T45.526D Underdosing of antithrombotic drugs, subsequent encounter
  • Billable - T45.526S Underdosing of antithrombotic drugs, sequela
  • Billable - T45.601A Poisoning by unspecified fibrinolysis-affecting drugs, accidental (unintentional), initial encounter
  • Billable - T45.601D Poisoning by unspecified fibrinolysis-affecting drugs, accidental (unintentional), subsequent encounter
  • Billable - T45.601S Poisoning by unspecified fibrinolysis-affecting drugs, accidental (unintentional), sequela
  • Billable - T45.602A Poisoning by unspecified fibrinolysis-affecting drugs, intentional self-harm, initial encounter
  • Billable - T45.602D Poisoning by unspecified fibrinolysis-affecting drugs, intentional self-harm, subsequent encounter
  • Billable - T45.602S Poisoning by unspecified fibrinolysis-affecting drugs, intentional self-harm, sequela
  • Billable - T45.603A Poisoning by unspecified fibrinolysis-affecting drugs, assault, initial encounter
  • Billable - T45.603D Poisoning by unspecified fibrinolysis-affecting drugs, assault, subsequent encounter
  • Billable - T45.603S Poisoning by unspecified fibrinolysis-affecting drugs, assault, sequela
  • Billable - T45.604A Poisoning by unspecified fibrinolysis-affecting drugs, undetermined, initial encounter
  • Billable - T45.604D Poisoning by unspecified fibrinolysis-affecting drugs, undetermined, subsequent encounter
  • Billable - T45.604S Poisoning by unspecified fibrinolysis-affecting drugs, undetermined, sequela
  • Billable - T45.605A Adverse effect of unspecified fibrinolysis-affecting drugs, initial encounter
  • Billable - T45.605D Adverse effect of unspecified fibrinolysis-affecting drugs, subsequent encounter
  • Billable - T45.605S Adverse effect of unspecified fibrinolysis-affecting drugs, sequela
  • Billable - T45.606A Underdosing of unspecified fibrinolysis-affecting drugs, initial encounter
  • Billable - T45.606D Underdosing of unspecified fibrinolysis-affecting drugs, subsequent encounter
  • Billable - T45.606S Underdosing of unspecified fibrinolysis-affecting drugs, sequela
  • Billable - T45.611A Poisoning by thrombolytic drug, accidental (unintentional), initial encounter
  • Billable - T45.611D Poisoning by thrombolytic drug, accidental (unintentional), subsequent encounter
  • Billable - T45.611S Poisoning by thrombolytic drug, accidental (unintentional), sequela
  • Billable - T45.612A Poisoning by thrombolytic drug, intentional self-harm, initial encounter
  • Billable - T45.612D Poisoning by thrombolytic drug, intentional self-harm, subsequent encounter
  • Billable - T45.612S Poisoning by thrombolytic drug, intentional self-harm, sequela
  • Billable - T45.613A Poisoning by thrombolytic drug, assault, initial encounter
  • Billable - T45.613D Poisoning by thrombolytic drug, assault, subsequent encounter
  • Billable - T45.613S Poisoning by thrombolytic drug, assault, sequela
  • Billable - T45.614A Poisoning by thrombolytic drug, undetermined, initial encounter
  • Billable - T45.614D Poisoning by thrombolytic drug, undetermined, subsequent encounter
  • Billable - T45.614S Poisoning by thrombolytic drug, undetermined, sequela
  • Billable - T45.615A Adverse effect of thrombolytic drugs, initial encounter
  • Billable - T45.615D Adverse effect of thrombolytic drugs, subsequent encounter
  • Billable - T45.615S Adverse effect of thrombolytic drugs, sequela
  • Billable - T45.616A Underdosing of thrombolytic drugs, initial encounter
  • Billable - T45.616D Underdosing of thrombolytic drugs, subsequent encounter
  • Billable - T45.616S Underdosing of thrombolytic drugs, sequela
  • Billable - T45.621A Poisoning by hemostatic drug, accidental (unintentional), initial encounter
  • Billable - T45.621D Poisoning by hemostatic drug, accidental (unintentional), subsequent encounter
  • Billable - T45.621S Poisoning by hemostatic drug, accidental (unintentional), sequela
  • Billable - T45.622A Poisoning by hemostatic drug, intentional self-harm, initial encounter
  • Billable - T45.622D Poisoning by hemostatic drug, intentional self-harm, subsequent encounter
  • Billable - T45.622S Poisoning by hemostatic drug, intentional self-harm, sequela
  • Billable - T45.623A Poisoning by hemostatic drug, assault, initial encounter
  • Billable - T45.623D Poisoning by hemostatic drug, assault, subsequent encounter
  • Billable - T45.623S Poisoning by hemostatic drug, assault, sequela
  • Billable - T45.624A Poisoning by hemostatic drug, undetermined, initial encounter
  • Billable - T45.624D Poisoning by hemostatic drug, undetermined, subsequent encounter
  • Billable - T45.624S Poisoning by hemostatic drug, undetermined, sequela
  • Billable - T45.625A Adverse effect of hemostatic drug, initial encounter
  • Billable - T45.625D Adverse effect of hemostatic drug, subsequent encounter
  • Billable - T45.625S Adverse effect of hemostatic drug, sequela
  • Billable - T45.626A Underdosing of hemostatic drugs, initial encounter
  • Billable - T45.626D Underdosing of hemostatic drugs, subsequent encounter
  • Billable - T45.626S Underdosing of hemostatic drugs, sequela
  • Billable - T45.691A Poisoning by other fibrinolysis-affecting drugs, accidental (unintentional), initial encounter
  • Billable - T45.691D Poisoning by other fibrinolysis-affecting drugs, accidental (unintentional), subsequent encounter
  • Billable - T45.691S Poisoning by other fibrinolysis-affecting drugs, accidental (unintentional), sequela
  • Billable - T45.692A Poisoning by other fibrinolysis-affecting drugs, intentional self-harm, initial encounter
  • Billable - T45.692D Poisoning by other fibrinolysis-affecting drugs, intentional self-harm, subsequent encounter
  • Billable - T45.692S Poisoning by other fibrinolysis-affecting drugs, intentional self-harm, sequela
  • Billable - T45.693A Poisoning by other fibrinolysis-affecting drugs, assault, initial encounter
  • Billable - T45.693D Poisoning by other fibrinolysis-affecting drugs, assault, subsequent encounter
  • Billable - T45.693S Poisoning by other fibrinolysis-affecting drugs, assault, sequela
  • Billable - T45.694A Poisoning by other fibrinolysis-affecting drugs, undetermined, initial encounter
  • Billable - T45.694D Poisoning by other fibrinolysis-affecting drugs, undetermined, subsequent encounter
  • Billable - T45.694S Poisoning by other fibrinolysis-affecting drugs, undetermined, sequela
  • Billable - T45.695A Adverse effect of other fibrinolysis-affecting drugs, initial encounter
  • Billable - T45.695D Adverse effect of other fibrinolysis-affecting drugs, subsequent encounter
  • Billable - T45.695S Adverse effect of other fibrinolysis-affecting drugs, sequela
  • Billable - T45.696A Underdosing of other fibrinolysis-affecting drugs, initial encounter
  • Billable - T45.696D Underdosing of other fibrinolysis-affecting drugs, subsequent encounter
  • Billable - T45.696S Underdosing of other fibrinolysis-affecting drugs, sequela
  • Billable - T45.7X1A Poisoning by anticoagulant antagonists, vitamin K and other coagulants, accidental (unintentional), initial encounter
  • Billable - T45.7X1D Poisoning by anticoagulant antagonists, vitamin K and other coagulants, accidental (unintentional), subsequent encounter
  • Billable - T45.7X1S Poisoning by anticoagulant antagonists, vitamin K and other coagulants, accidental (unintentional), sequela
  • Billable - T45.7X2A Poisoning by anticoagulant antagonists, vitamin K and other coagulants, intentional self-harm, initial encounter
  • Billable - T45.7X2D Poisoning by anticoagulant antagonists, vitamin K and other coagulants, intentional self-harm, subsequent encounter
  • Billable - T45.7X2S Poisoning by anticoagulant antagonists, vitamin K and other coagulants, intentional self-harm, sequela
  • Billable - T45.7X3A Poisoning by anticoagulant antagonists, vitamin K and other coagulants, assault, initial encounter
  • Billable - T45.7X3D Poisoning by anticoagulant antagonists, vitamin K and other coagulants, assault, subsequent encounter
  • Billable - T45.7X3S Poisoning by anticoagulant antagonists, vitamin K and other coagulants, assault, sequela
  • Billable - T45.7X4A Poisoning by anticoagulant antagonists, vitamin K and other coagulants, undetermined, initial encounter
  • Billable - T45.7X4D Poisoning by anticoagulant antagonists, vitamin K and other coagulants, undetermined, subsequent encounter
  • Billable - T45.7X4S Poisoning by anticoagulant antagonists, vitamin K and other coagulants, undetermined, sequela
  • Billable - T45.7X5A Adverse effect of anticoagulant antagonists, vitamin K and other coagulants, initial encounter
  • Billable - T45.7X5D Adverse effect of anticoagulant antagonists, vitamin K and other coagulants, subsequent encounter
  • Billable - T45.7X5S Adverse effect of anticoagulant antagonists, vitamin K and other coagulants, sequela
  • Billable - T45.7X6A Underdosing of anticoagulant antagonist, vitamin K and other coagulants, initial encounter
  • Billable - T45.7X6D Underdosing of anticoagulant antagonist, vitamin K and other coagulants, subsequent encounter
  • Billable - T45.7X6S Underdosing of anticoagulant antagonist, vitamin K and other coagulants, sequela
  • Billable - T45.8X1A Poisoning by other primarily systemic and hematological agents, accidental (unintentional), initial encounter
  • Billable - T45.8X1D Poisoning by other primarily systemic and hematological agents, accidental (unintentional), subsequent encounter
  • Billable - T45.8X1S Poisoning by other primarily systemic and hematological agents, accidental (unintentional), sequela
  • Billable - T45.8X2A Poisoning by other primarily systemic and hematological agents, intentional self-harm, initial encounter
  • Billable - T45.8X2D Poisoning by other primarily systemic and hematological agents, intentional self-harm, subsequent encounter
  • Billable - T45.8X2S Poisoning by other primarily systemic and hematological agents, intentional self-harm, sequela
  • Billable - T45.8X3A Poisoning by other primarily systemic and hematological agents, assault, initial encounter
  • Billable - T45.8X3D Poisoning by other primarily systemic and hematological agents, assault, subsequent encounter
  • Billable - T45.8X3S Poisoning by other primarily systemic and hematological agents, assault, sequela
  • Billable - T45.8X4A Poisoning by other primarily systemic and hematological agents, undetermined, initial encounter
  • Billable - T45.8X4D Poisoning by other primarily systemic and hematological agents, undetermined, subsequent encounter
  • Billable - T45.8X4S Poisoning by other primarily systemic and hematological agents, undetermined, sequela
  • Billable - T45.8X5A Adverse effect of other primarily systemic and hematological agents, initial encounter
  • Billable - T45.8X5D Adverse effect of other primarily systemic and hematological agents, subsequent encounter
  • Billable - T45.8X5S Adverse effect of other primarily systemic and hematological agents, sequela
  • Billable - T45.8X6A Underdosing of other primarily systemic and hematological agents, initial encounter
  • Billable - T45.8X6D Underdosing of other primarily systemic and hematological agents, subsequent encounter
  • Billable - T45.8X6S Underdosing of other primarily systemic and hematological agents, sequela
  • Billable - T45.91XA Poisoning by unspecified primarily systemic and hematological agent, accidental (unintentional), initial encounter
  • Billable - T45.91XD Poisoning by unspecified primarily systemic and hematological agent, accidental (unintentional), subsequent encounter
  • Billable - T45.91XS Poisoning by unspecified primarily systemic and hematological agent, accidental (unintentional), sequela
  • Billable - T45.92XA Poisoning by unspecified primarily systemic and hematological agent, intentional self-harm, initial encounter
  • Billable - T45.92XD Poisoning by unspecified primarily systemic and hematological agent, intentional self-harm, subsequent encounter
  • Billable - T45.92XS Poisoning by unspecified primarily systemic and hematological agent, intentional self-harm, sequela
  • Billable - T45.93XA Poisoning by unspecified primarily systemic and hematological agent, assault, initial encounter
  • Billable - T45.93XD Poisoning by unspecified primarily systemic and hematological agent, assault, subsequent encounter
  • Billable - T45.93XS Poisoning by unspecified primarily systemic and hematological agent, assault, sequela
  • Billable - T45.94XA Poisoning by unspecified primarily systemic and hematological agent, undetermined, initial encounter
  • Billable - T45.94XD Poisoning by unspecified primarily systemic and hematological agent, undetermined, subsequent encounter
  • Billable - T45.94XS Poisoning by unspecified primarily systemic and hematological agent, undetermined, sequela
  • Billable - T45.95XA Adverse effect of unspecified primarily systemic and hematological agent, initial encounter
  • Billable - T45.95XD Adverse effect of unspecified primarily systemic and hematological agent, subsequent encounter
  • Billable - T45.95XS Adverse effect of unspecified primarily systemic and hematological agent, sequela
  • Billable - T45.96XA Underdosing of unspecified primarily systemic and hematological agent, initial encounter
  • Billable - T45.96XD Underdosing of unspecified primarily systemic and hematological agent, subsequent encounter
  • Billable - T45.96XS Underdosing of unspecified primarily systemic and hematological agent, sequela
  • Billable - T45.AX1A Poisoning by immune checkpoint inhibitors and immunostimulant drugs, accidental (unintentional), initial encounter
  • Billable - T45.AX1D Poisoning by immune checkpoint inhibitors and immunostimulant drugs, accidental (unintentional), subsequent encounter
  • Billable - T45.AX1S Poisoning by immune checkpoint inhibitors and immunostimulant drugs, accidental (unintentional), sequela
  • Billable - T45.AX2A Poisoning by immune checkpoint inhibitors and immunostimulant drugs, intentional self-harm, initial encounter
  • Billable - T45.AX2D Poisoning by immune checkpoint inhibitors and immunostimulant drugs, intentional self-harm, subsequent encounter
  • Billable - T45.AX2S Poisoning by immune checkpoint inhibitors and immunostimulant drugs, intentional self-harm, sequela
  • Billable - T45.AX3A Poisoning by immune checkpoint inhibitors and immunostimulant drugs, assault, initial encounter
  • Billable - T45.AX3D Poisoning by immune checkpoint inhibitors and immunostimulant drugs, assault, subsequent encounter
  • Billable - T45.AX3S Poisoning by immune checkpoint inhibitors and immunostimulant drugs, assault, sequela
  • Billable - T45.AX4A Poisoning by immune checkpoint inhibitors and immunostimulant drugs, undetermined, initial encounter
  • Billable - T45.AX4D Poisoning by immune checkpoint inhibitors and immunostimulant drugs, undetermined, subsequent encounter
  • Billable - T45.AX4S Poisoning by immune checkpoint inhibitors and immunostimulant drugs, undetermined, sequela
  • Billable - T45.AX5A Adverse effect of immune checkpoint inhibitors and immunostimulant drugs, initial encounter
  • Billable - T45.AX5D Adverse effect of immune checkpoint inhibitors and immunostimulant drugs, subsequent encounter
  • Billable - T45.AX5S Adverse effect of immune checkpoint inhibitors and immunostimulant drugs, sequela
  • Billable - T45.AX6A Underdosing of immune checkpoint inhibitors and immunostimulant drugs, initial encounter
  • Billable - T45.AX6D Underdosing of immune checkpoint inhibitors and immunostimulant drugs, subsequent encounter
  • Billable - T45.AX6S Underdosing of immune checkpoint inhibitors and immunostimulant drugs, sequela

The codes listed below are in tabular order from T45. Codes marked as Billable can be used in all HIPAA-covered transactions.

  • T45.0 Poisoning by, adverse effect of and underdosing of antiallergic and antiemetic drugs
    • T45.0X Poisoning by, adverse effect of and underdosing of antiallergic and antiemetic drugs
  • T45.1 Poisoning by, adverse effect of and underdosing of antineoplastic and immunosuppressive drugs
    • T45.1X Poisoning by, adverse effect of and underdosing of antineoplastic and immunosuppressive drugs
  • T45.2 Poisoning by, adverse effect of and underdosing of vitamins
    • T45.2X Poisoning by, adverse effect of and underdosing of vitamins
  • T45.3 Poisoning by, adverse effect of and underdosing of enzymes
    • T45.3X Poisoning by, adverse effect of and underdosing of enzymes
  • T45.4 Poisoning by, adverse effect of and underdosing of iron and its compounds
    • T45.4X Poisoning by, adverse effect of and underdosing of iron and its compounds
  • T45.5 Poisoning by, adverse effect of and underdosing of anticoagulants and antithrombotic drugs
    • T45.51 Poisoning by, adverse effect of and underdosing of anticoagulants
    • T45.52 Poisoning by, adverse effect of and underdosing of antithrombotic drugs
  • T45.6 Poisoning by, adverse effect of and underdosing of fibrinolysis-affecting drugs
    • T45.60 Poisoning by, adverse effect of and underdosing of unspecified fibrinolysis-affecting drugs
    • T45.61 Poisoning by, adverse effect of and underdosing of thrombolytic drugs
    • T45.62 Poisoning by, adverse effect of and underdosing of hemostatic drugs
    • T45.69 Poisoning by, adverse effect of and underdosing of other fibrinolysis-affecting drugs
  • T45.7 Poisoning by, adverse effect of and underdosing of anticoagulant antagonists, vitamin K and other coagulants
    • T45.7X Poisoning by, adverse effect of and underdosing of anticoagulant antagonists, vitamin K and other coagulants
  • T45.8 Poisoning by, adverse effect of and underdosing of other primarily systemic and hematological agents
    • T45.8X Poisoning by, adverse effect of and underdosing of other primarily systemic and hematological agents
  • T45.9 Poisoning by, adverse effect of and underdosing of unspecified primarily systemic and hematological agent
    • T45.91 Poisoning by unspecified primarily systemic and hematological agent, accidental (unintentional)
    • T45.92 Poisoning by unspecified primarily systemic and hematological agent, intentional self-harm
    • T45.93 Poisoning by unspecified primarily systemic and hematological agent, assault
    • T45.94 Poisoning by unspecified primarily systemic and hematological agent, undetermined
    • T45.95 Adverse effect of unspecified primarily systemic and hematological agent
    • T45.96 Underdosing of unspecified primarily systemic and hematological agent
  • T45.A Poisoning by, adverse effect of and underdosing of immune checkpoint inhibitors and immunostimulant drugs
    • T45.AX Poisoning by, adverse effect of and underdosing of immune checkpoint inhibitors and immunostimulant drugs

See also, ICD-10 Table of Drugs & Chemicals.

Coding structure:

ICD-10 code T45 is based on the following Tabular structure:

Chapter 19: Injury, poisoning and certain other consequences of external causes
  • Section T36-T50: Poisoning by, adverse effects of and underdosing of drugs, medicaments and biological substances
    • Category T45: Poisoning by, adverse effect of and underdosing of primarily systemic and hematological agents, not elsewhere classified
Section T36-T50 — Poisoning by, adverse effects of and underdosing of drugs, medicaments and biological substances

The drug giving rise to the adverse effect should be identified by use of codes from categories T36-T50 with fifth or sixth character 5.

Use additional code(s) to specify:
manifestations of poisoning
underdosing or failure in dosage during medical and surgical care (Y63.6, Y63.8-Y63.9)
underdosing of medication regimen (Z91.12-, Z91.13-)

Code first  , for adverse effects, the nature of the adverse effect, such as:
  adverse effect NOS (T88.7)
  aspirin gastritis (K29.-)
  blood disorders (D56-D76)
  contact dermatitis (L23-L25)
  dermatitis due to substances taken internally (L27.-)
  nephropathy (N14.0-N14.2)

Includes:

  • adverse effect of correct substance properly administered
  • poisoning by overdose of substance
  • poisoning by wrong substance given or taken in error
  • underdosing by (inadvertently) (deliberately) taking less substance than prescribed or instructed

Excludes1

  • toxic reaction to local anesthesia in pregnancy (O29.3-)

Excludes2

  • abuse and dependence of psychoactive substances (F10-F19)
  • abuse of non-dependence-producing substances (F55.-)
  • immunodeficiency due to drugs (D84.821)
  • drug reaction and poisoning affecting newborn (P00-P96)
  • pathological drug intoxication (inebriation) (F10-F19)

  1. T45 Poisoning by, adverse effect of and underdosing of primarily systemic and hematological agents, not elsewhere classified

    1. T45.0 Poisoning by, adverse effect of and underdosing of antiallergic and antiemetic drugs

      1. T45.0X Poisoning by, adverse effect of and underdosing of antiallergic and antiemetic drugs

        • T45.0X1 Poisoning by antiallergic and antiemetic drugs, accidental (unintentional)

          Inclusion term(s):

          • Poisoning by antiallergic and antiemetic drugs NOS
        • T45.0X2 Poisoning by antiallergic and antiemetic drugs, intentional self-harm
        • T45.0X3 Poisoning by antiallergic and antiemetic drugs, assault
        • T45.0X4 Poisoning by antiallergic and antiemetic drugs, undetermined
        • T45.0X5 Adverse effect of antiallergic and antiemetic drugs
        • T45.0X6 Underdosing of antiallergic and antiemetic drugs

    2. T45.1 Poisoning by, adverse effect of and underdosing of antineoplastic and immunosuppressive drugs

      1. T45.1X Poisoning by, adverse effect of and underdosing of antineoplastic and immunosuppressive drugs

        • T45.1X1 Poisoning by antineoplastic and immunosuppressive drugs, accidental (unintentional)

          Inclusion term(s):

          • Poisoning by antineoplastic and immunosuppressive drugs NOS
        • T45.1X2 Poisoning by antineoplastic and immunosuppressive drugs, intentional self-harm
        • T45.1X3 Poisoning by antineoplastic and immunosuppressive drugs, assault
        • T45.1X4 Poisoning by antineoplastic and immunosuppressive drugs, undetermined
        • T45.1X5 Adverse effect of antineoplastic and immunosuppressive drugs
        • T45.1X6 Underdosing of antineoplastic and immunosuppressive drugs

    3. T45.2 Poisoning by, adverse effect of and underdosing of vitamins

      1. T45.2X Poisoning by, adverse effect of and underdosing of vitamins

        • T45.2X1 Poisoning by vitamins, accidental (unintentional)

          Inclusion term(s):

          • Poisoning by vitamins NOS
        • T45.2X2 Poisoning by vitamins, intentional self-harm
        • T45.2X3 Poisoning by vitamins, assault
        • T45.2X4 Poisoning by vitamins, undetermined
        • T45.2X5 Adverse effect of vitamins
        • T45.2X6 Underdosing of vitamins

    4. T45.3 Poisoning by, adverse effect of and underdosing of enzymes

      1. T45.3X Poisoning by, adverse effect of and underdosing of enzymes

    5. T45.4 Poisoning by, adverse effect of and underdosing of iron and its compounds

      1. T45.4X Poisoning by, adverse effect of and underdosing of iron and its compounds

        • T45.4X1 Poisoning by iron and its compounds, accidental (unintentional)

          Inclusion term(s):

          • Poisoning by iron and its compounds NOS
        • T45.4X2 Poisoning by iron and its compounds, intentional self-harm
        • T45.4X3 Poisoning by iron and its compounds, assault
        • T45.4X4 Poisoning by iron and its compounds, undetermined
        • T45.4X5 Adverse effect of iron and its compounds
        • T45.4X6 Underdosing of iron and its compounds

    6. T45.5 Poisoning by, adverse effect of and underdosing of anticoagulants and antithrombotic drugs

      1. T45.51 Poisoning by, adverse effect of and underdosing of anticoagulants

        • T45.511 Poisoning by anticoagulants, accidental (unintentional)

          Inclusion term(s):

          • Poisoning by anticoagulants NOS
        • T45.512 Poisoning by anticoagulants, intentional self-harm
        • T45.513 Poisoning by anticoagulants, assault
        • T45.514 Poisoning by anticoagulants, undetermined
        • T45.515 Adverse effect of anticoagulants
        • T45.516 Underdosing of anticoagulants

      2. T45.52 Poisoning by, adverse effect of and underdosing of antithrombotic drugs

        Inclusion term(s):

        • Poisoning by, adverse effect of and underdosing of antiplatelet drugs
        • T45.521 Poisoning by antithrombotic drugs, accidental (unintentional)

          Inclusion term(s):

          • Poisoning by antithrombotic drug NOS
        • T45.522 Poisoning by antithrombotic drugs, intentional self-harm
        • T45.523 Poisoning by antithrombotic drugs, assault
        • T45.524 Poisoning by antithrombotic drugs, undetermined
        • T45.525 Adverse effect of antithrombotic drugs
        • T45.526 Underdosing of antithrombotic drugs

    7. T45.6 Poisoning by, adverse effect of and underdosing of fibrinolysis-affecting drugs

      1. T45.60 Poisoning by, adverse effect of and underdosing of unspecified fibrinolysis-affecting drugs

        • T45.601 Poisoning by unspecified fibrinolysis-affecting drugs, accidental (unintentional)

          Inclusion term(s):

          • Poisoning by fibrinolysis-affecting drug NOS
        • T45.602 Poisoning by unspecified fibrinolysis-affecting drugs, intentional self-harm
        • T45.603 Poisoning by unspecified fibrinolysis-affecting drugs, assault
        • T45.604 Poisoning by unspecified fibrinolysis-affecting drugs, undetermined
        • T45.605 Adverse effect of unspecified fibrinolysis-affecting drugs
        • T45.606 Underdosing of unspecified fibrinolysis-affecting drugs

      2. T45.61 Poisoning by, adverse effect of and underdosing of thrombolytic drugs

        • T45.611 Poisoning by thrombolytic drug, accidental (unintentional)

          Inclusion term(s):

          • Poisoning by thrombolytic drug NOS
        • T45.612 Poisoning by thrombolytic drug, intentional self-harm
        • T45.613 Poisoning by thrombolytic drug, assault
        • T45.614 Poisoning by thrombolytic drug, undetermined
        • T45.615 Adverse effect of thrombolytic drugs
        • T45.616 Underdosing of thrombolytic drugs

      3. T45.62 Poisoning by, adverse effect of and underdosing of hemostatic drugs

        • T45.621 Poisoning by hemostatic drug, accidental (unintentional)

          Inclusion term(s):

          • Poisoning by hemostatic drug NOS
        • T45.622 Poisoning by hemostatic drug, intentional self-harm
        • T45.623 Poisoning by hemostatic drug, assault
        • T45.624 Poisoning by hemostatic drug, undetermined
        • T45.625 Adverse effect of hemostatic drug
        • T45.626 Underdosing of hemostatic drugs

      4. T45.69 Poisoning by, adverse effect of and underdosing of other fibrinolysis-affecting drugs

        • T45.691 Poisoning by other fibrinolysis-affecting drugs, accidental (unintentional)

          Inclusion term(s):

          • Poisoning by other fibrinolysis-affecting drug NOS
        • T45.692 Poisoning by other fibrinolysis-affecting drugs, intentional self-harm
        • T45.693 Poisoning by other fibrinolysis-affecting drugs, assault
        • T45.694 Poisoning by other fibrinolysis-affecting drugs, undetermined
        • T45.695 Adverse effect of other fibrinolysis-affecting drugs
        • T45.696 Underdosing of other fibrinolysis-affecting drugs

    8. T45.7 Poisoning by, adverse effect of and underdosing of anticoagulant antagonists, vitamin K and other coagulants

      1. T45.7X Poisoning by, adverse effect of and underdosing of anticoagulant antagonists, vitamin K and other coagulants

        • T45.7X1 Poisoning by anticoagulant antagonists, vitamin K and other coagulants, accidental (unintentional)

          Inclusion term(s):

          • Poisoning by anticoagulant antagonists, vitamin K and other coagulants NOS
        • T45.7X2 Poisoning by anticoagulant antagonists, vitamin K and other coagulants, intentional self-harm
        • T45.7X3 Poisoning by anticoagulant antagonists, vitamin K and other coagulants, assault
        • T45.7X4 Poisoning by anticoagulant antagonists, vitamin K and other coagulants, undetermined
        • T45.7X5 Adverse effect of anticoagulant antagonists, vitamin K and other coagulants
        • T45.7X6 Underdosing of anticoagulant antagonist, vitamin K and other coagulants

    9. T45.8 Poisoning by, adverse effect of and underdosing of other primarily systemic and hematological agents

      Inclusion term(s):

      • Poisoning by, adverse effect of and underdosing of liver preparations and other antianemic agents
      • Poisoning by, adverse effect of and underdosing of natural blood and blood products
      • Poisoning by, adverse effect of and underdosing of plasma substitute

      1. T45.8X Poisoning by, adverse effect of and underdosing of other primarily systemic and hematological agents

        • T45.8X1 Poisoning by other primarily systemic and hematological agents, accidental (unintentional)

          Inclusion term(s):

          • Poisoning by other primarily systemic and hematological agents NOS
        • T45.8X2 Poisoning by other primarily systemic and hematological agents, intentional self-harm
        • T45.8X3 Poisoning by other primarily systemic and hematological agents, assault
        • T45.8X4 Poisoning by other primarily systemic and hematological agents, undetermined
        • T45.8X5 Adverse effect of other primarily systemic and hematological agents
        • T45.8X6 Underdosing of other primarily systemic and hematological agents

    10. T45.9 Poisoning by, adverse effect of and underdosing of unspecified primarily systemic and hematological agent

      1. T45.91 Poisoning by unspecified primarily systemic and hematological agent, accidental (unintentional)

        Inclusion term(s):

        • Poisoning by primarily systemic and hematological agent NOS

      2. T45.92 Poisoning by unspecified primarily systemic and hematological agent, intentional self-harm

      3. T45.93 Poisoning by unspecified primarily systemic and hematological agent, assault

      4. T45.94 Poisoning by unspecified primarily systemic and hematological agent, undetermined

      5. T45.95 Adverse effect of unspecified primarily systemic and hematological agent

      6. T45.96 Underdosing of unspecified primarily systemic and hematological agent

    11. T45.A Poisoning by, adverse effect of and underdosing of immune checkpoint inhibitors and immunostimulant drugs

      1. T45.AX Poisoning by, adverse effect of and underdosing of immune checkpoint inhibitors and immunostimulant drugs

        • T45.AX1 Poisoning by immune checkpoint inhibitors and immunostimulant drugs, accidental (unintentional)

          Inclusion term(s):

          • Poisoning by immune checkpoint inhibitors and immunosuppressive drugs NOS
        • T45.AX2 Poisoning by immune checkpoint inhibitors and immunostimulant drugs, intentional self-harm
        • T45.AX3 Poisoning by immune checkpoint inhibitors and immunostimulant drugs, assault
        • T45.AX4 Poisoning by immune checkpoint inhibitors and immunostimulant drugs, undetermined
        • T45.AX5 Adverse effect of immune checkpoint inhibitors and immunostimulant drugs
        • T45.AX6 Underdosing of immune checkpoint inhibitors and immunostimulant drugs
Abbreviations used here:

NEC Not elsewhere classifiable
This abbreviation in the Tabular List represents “other specified”. When a specific code is not available for a condition, the Tabular List includes an NEC entry under a code to identify the code as the “other specified” code.

NOS Not otherwise specified
This abbreviation is the equivalent of unspecified.