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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

  • T43.015D Adverse effect of tricyclic antidepressants, subsequent encounter
  • T43.015S Adverse effect of tricyclic antidepressants, sequela
  • T43.016A Underdosing of tricyclic antidepressants, initial encounter
  • T43.016D Underdosing of tricyclic antidepressants, subsequent encounter
  • T43.016S Underdosing of tricyclic antidepressants, sequela
  • T43.025A Adverse effect of tetracyclic antidepressants, initial encounter
  • T43.025D Adverse effect of tetracyclic antidepressants, subsequent encounter
  • T43.025S Adverse effect of tetracyclic antidepressants, sequela
  • T43.026A Underdosing of tetracyclic antidepressants, initial encounter
  • T43.026D Underdosing of tetracyclic antidepressants, subsequent encounter
  • T43.026S Underdosing of tetracyclic antidepressants, sequela
  • T43.1X5A Adverse effect of monoamine-oxidase-inhibitor antidepressants, initial encounter
  • T43.1X5D Adverse effect of monoamine-oxidase-inhibitor antidepressants, subsequent encounter
  • T43.1X5S Adverse effect of monoamine-oxidase-inhibitor antidepressants, sequela
  • T43.1X6A Underdosing of monoamine-oxidase-inhibitor antidepressants, initial encounter
  • T43.1X6D Underdosing of monoamine-oxidase-inhibitor antidepressants, subsequent encounter
  • T43.1X6S Underdosing of monoamine-oxidase-inhibitor antidepressants, sequela
  • T43.205A Adverse effect of unspecified antidepressants, initial encounter
  • T43.205D Adverse effect of unspecified antidepressants, subsequent encounter
  • T43.205S Adverse effect of unspecified antidepressants, sequela
  • T43.206A Underdosing of unspecified antidepressants, initial encounter
  • T43.206D Underdosing of unspecified antidepressants, subsequent encounter
  • T43.206S Underdosing of unspecified antidepressants, sequela
  • T43.215A Adverse effect of selective serotonin and norepinephrine reuptake inhibitors, initial encounter
  • T43.215D Adverse effect of selective serotonin and norepinephrine reuptake inhibitors, subsequent encounter
  • T43.215S Adverse effect of selective serotonin and norepinephrine reuptake inhibitors, sequela
  • T43.216A Underdosing of selective serotonin and norepinephrine reuptake inhibitors, initial encounter
  • T43.216D Underdosing of selective serotonin and norepinephrine reuptake inhibitors, subsequent encounter
  • T43.216S Underdosing of selective serotonin and norepinephrine reuptake inhibitors, sequela
  • T43.225A Adverse effect of selective serotonin reuptake inhibitors, initial encounter
  • T43.225D Adverse effect of selective serotonin reuptake inhibitors, subsequent encounter
  • T43.225S Adverse effect of selective serotonin reuptake inhibitors, sequela
  • T43.226A Underdosing of selective serotonin reuptake inhibitors, initial encounter
  • T43.226D Underdosing of selective serotonin reuptake inhibitors, subsequent encounter
  • T43.226S Underdosing of selective serotonin reuptake inhibitors, sequela
  • T43.295A Adverse effect of other antidepressants, initial encounter
  • T43.295D Adverse effect of other antidepressants, subsequent encounter
  • T43.295S Adverse effect of other antidepressants, sequela
  • T43.296A Underdosing of other antidepressants, initial encounter
  • T43.296D Underdosing of other antidepressants, subsequent encounter
  • T43.296S Underdosing of other antidepressants, sequela
  • T43.3X5A Adverse effect of phenothiazine antipsychotics and neuroleptics, initial encounter
  • T43.3X5D Adverse effect of phenothiazine antipsychotics and neuroleptics, subsequent encounter