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Unacceptable principal diagnosis codes

ICD-10 coding rules for There are selected codes that describe a circumstance which influences an individual's health status but not a current illness or injury, or codes that are not specific manifestations but may be due to an underlying cause. These codes are considered unacceptable as a principal diagnosis..

Unacceptable principal diagnosis codes. — See additional coding rules

  • T40.996A Underdosing of other psychodysleptics [hallucinogens], initial encounter
  • T40.996D Underdosing of other psychodysleptics [hallucinogens], subsequent encounter
  • T40.996S Underdosing of other psychodysleptics [hallucinogens], sequela
  • T41.0X5A Adverse effect of inhaled anesthetics, initial encounter
  • T41.0X5D Adverse effect of inhaled anesthetics, subsequent encounter
  • T41.0X5S Adverse effect of inhaled anesthetics, sequela
  • T41.0X6A Underdosing of inhaled anesthetics, initial encounter
  • T41.0X6D Underdosing of inhaled anesthetics, subsequent encounter
  • T41.0X6S Underdosing of inhaled anesthetics, sequela
  • T41.1X5A Adverse effect of intravenous anesthetics, initial encounter
  • T41.1X5D Adverse effect of intravenous anesthetics, subsequent encounter
  • T41.1X5S Adverse effect of intravenous anesthetics, sequela
  • T41.1X6A Underdosing of intravenous anesthetics, initial encounter
  • T41.1X6D Underdosing of intravenous anesthetics, subsequent encounter
  • T41.1X6S Underdosing of intravenous anesthetics, sequela
  • T41.205A Adverse effect of unspecified general anesthetics, initial encounter
  • T41.205D Adverse effect of unspecified general anesthetics, subsequent encounter
  • T41.205S Adverse effect of unspecified general anesthetics, sequela
  • T41.206A Underdosing of unspecified general anesthetics, initial encounter
  • T41.206D Underdosing of unspecified general anesthetics, subsequent encounter
  • T41.206S Underdosing of unspecified general anesthetics, sequela
  • T41.295A Adverse effect of other general anesthetics, initial encounter
  • T41.295D Adverse effect of other general anesthetics, subsequent encounter
  • T41.295S Adverse effect of other general anesthetics, sequela
  • T41.296A Underdosing of other general anesthetics, initial encounter
  • T41.296D Underdosing of other general anesthetics, subsequent encounter
  • T41.296S Underdosing of other general anesthetics, sequela
  • T41.3X5A Adverse effect of local anesthetics, initial encounter
  • T41.3X5D Adverse effect of local anesthetics, subsequent encounter
  • T41.3X5S Adverse effect of local anesthetics, sequela
  • T41.3X6A Underdosing of local anesthetics, initial encounter
  • T41.3X6D Underdosing of local anesthetics, subsequent encounter
  • T41.3X6S Underdosing of local anesthetics, sequela
  • T41.45XA Adverse effect of unspecified anesthetic, initial encounter
  • T41.45XD Adverse effect of unspecified anesthetic, subsequent encounter
  • T41.45XS Adverse effect of unspecified anesthetic, sequela
  • T41.46XA Underdosing of unspecified anesthetics, initial encounter
  • T41.46XD Underdosing of unspecified anesthetics, subsequent encounter
  • T41.46XS Underdosing of unspecified anesthetics, sequela
  • T41.5X5A Adverse effect of therapeutic gases, initial encounter
  • T41.5X5D Adverse effect of therapeutic gases, subsequent encounter
  • T41.5X5S Adverse effect of therapeutic gases, sequela
  • T41.5X6A Underdosing of therapeutic gases, initial encounter
  • T41.5X6D Underdosing of therapeutic gases, subsequent encounter
  • T41.5X6S Underdosing of therapeutic gases, sequela
  • T42.0X5A Adverse effect of hydantoin derivatives, initial encounter
  • T42.0X5D Adverse effect of hydantoin derivatives, subsequent encounter
  • T42.0X5S Adverse effect of hydantoin derivatives, sequela
  • T42.0X6A Underdosing of hydantoin derivatives, initial encounter
  • T42.0X6D Underdosing of hydantoin derivatives, subsequent encounter
  • T42.0X6S Underdosing of hydantoin derivatives, sequela
  • T42.1X5A Adverse effect of iminostilbenes, initial encounter
  • T42.1X5D Adverse effect of iminostilbenes, subsequent encounter
  • T42.1X5S Adverse effect of iminostilbenes, sequela
  • T42.1X6A Underdosing of iminostilbenes, initial encounter
  • T42.1X6D Underdosing of iminostilbenes, subsequent encounter
  • T42.1X6S Underdosing of iminostilbenes, sequela
  • T42.2X5A Adverse effect of succinimides and oxazolidinediones, initial encounter
  • T42.2X5D Adverse effect of succinimides and oxazolidinediones, subsequent encounter
  • T42.2X5S Adverse effect of succinimides and oxazolidinediones, sequela
  • T42.2X6A Underdosing of succinimides and oxazolidinediones, initial encounter
  • T42.2X6D Underdosing of succinimides and oxazolidinediones, subsequent encounter
  • T42.2X6S Underdosing of succinimides and oxazolidinediones, sequela
  • T42.3X5A Adverse effect of barbiturates, initial encounter
  • T42.3X5D Adverse effect of barbiturates, subsequent encounter
  • T42.3X5S Adverse effect of barbiturates, sequela
  • T42.3X6A Underdosing of barbiturates, initial encounter
  • T42.3X6D Underdosing of barbiturates, subsequent encounter
  • T42.3X6S Underdosing of barbiturates, sequela
  • T42.4X5A Adverse effect of benzodiazepines, initial encounter
  • T42.4X5D Adverse effect of benzodiazepines, subsequent encounter
  • T42.4X5S Adverse effect of benzodiazepines, sequela
  • T42.4X6A Underdosing of benzodiazepines, initial encounter
  • T42.4X6D Underdosing of benzodiazepines, subsequent encounter
  • T42.4X6S Underdosing of benzodiazepines, sequela
  • T42.5X5A Adverse effect of mixed antiepileptics, initial encounter
  • T42.5X5D Adverse effect of mixed antiepileptics, subsequent encounter
  • T42.5X5S Adverse effect of mixed antiepileptics, sequela
  • T42.5X6A Underdosing of mixed antiepileptics, initial encounter
  • T42.5X6D Underdosing of mixed antiepileptics, subsequent encounter
  • T42.5X6S Underdosing of mixed antiepileptics, sequela
  • T42.6X5A Adverse effect of other antiepileptic and sedative-hypnotic drugs, initial encounter
  • T42.6X5D Adverse effect of other antiepileptic and sedative-hypnotic drugs, subsequent encounter
  • T42.6X5S Adverse effect of other antiepileptic and sedative-hypnotic drugs, sequela
  • T42.6X6A Underdosing of other antiepileptic and sedative-hypnotic drugs, initial encounter
  • T42.6X6D Underdosing of other antiepileptic and sedative-hypnotic drugs, subsequent encounter
  • T42.6X6S Underdosing of other antiepileptic and sedative-hypnotic drugs, sequela
  • T42.75XA Adverse effect of unspecified antiepileptic and sedative-hypnotic drugs, initial encounter
  • T42.75XD Adverse effect of unspecified antiepileptic and sedative-hypnotic drugs, subsequent encounter
  • T42.75XS Adverse effect of unspecified antiepileptic and sedative-hypnotic drugs, sequela
  • T42.76XA Underdosing of unspecified antiepileptic and sedative-hypnotic drugs, initial encounter
  • T42.76XD Underdosing of unspecified antiepileptic and sedative-hypnotic drugs, subsequent encounter
  • T42.76XS Underdosing of unspecified antiepileptic and sedative-hypnotic drugs, sequela
  • T42.8X5A Adverse effect of antiparkinsonism drugs and other central muscle-tone depressants, initial encounter
  • T42.8X5D Adverse effect of antiparkinsonism drugs and other central muscle-tone depressants, subsequent encounter
  • T42.8X5S Adverse effect of antiparkinsonism drugs and other central muscle-tone depressants, sequela
  • T42.8X6A Underdosing of antiparkinsonism drugs and other central muscle-tone depressants, initial encounter
  • T42.8X6D Underdosing of antiparkinsonism drugs and other central muscle-tone depressants, subsequent encounter
  • T42.8X6S Underdosing of antiparkinsonism drugs and other central muscle-tone depressants, sequela
  • T43.015A Adverse effect of tricyclic antidepressants, initial encounter