T36-T50

Non-Billable
ChapterS00–T88
Rankblock
Official Description

Poisoning by, adverse effects of and underdosing of drugs, medicaments and biological substances (T36-T50)

Use a more specific code (0 billable, 15 non-billable)
T36Poisoning by, adverse effect of and underdosing of systemic antibioticshas subcodesT37Poisoning by, adverse effect of and underdosing of other systemic anti-infectives and antiparasiticshas subcodesT38Poisoning by, adverse effect of and underdosing of hormones and their synthetic substitutes and antagonists, not elsewhere classifiedhas subcodesT39Poisoning by, adverse effect of and underdosing of nonopioid analgesics, antipyretics and antirheumaticshas subcodesT40Poisoning by, adverse effect of and underdosing of narcotics and psychodysleptics [hallucinogens]has subcodesT41Poisoning by, adverse effect of and underdosing of anesthetics and therapeutic gaseshas subcodesT42Poisoning by, adverse effect of and underdosing of antiepileptic, sedative- hypnotic and antiparkinsonism drugshas subcodesT43Poisoning by, adverse effect of and underdosing of psychotropic drugs, not elsewhere classifiedhas subcodesT44Poisoning by, adverse effect of and underdosing of drugs primarily affecting the autonomic nervous systemhas subcodesT45Poisoning by, adverse effect of and underdosing of primarily systemic and hematological agents, not elsewhere classifiedhas subcodesT46Poisoning by, adverse effect of and underdosing of agents primarily affecting the cardiovascular systemhas subcodesT47Poisoning by, adverse effect of and underdosing of agents primarily affecting the gastrointestinal systemhas subcodesT48Poisoning by, adverse effect of and underdosing of agents primarily acting on smooth and skeletal muscles and the respiratory systemhas subcodesT49Poisoning by, adverse effect of and underdosing of topical agents primarily affecting skin and mucous membrane and by ophthalmological, otorhinorlaryngological and dental drugshas subcodesT50Poisoning by, adverse effect of and underdosing of diuretics and other and unspecified drugs, medicaments and biological substanceshas subcodes
Metadata & Insights
  • Non-billable category (requires more specific sub-code).
  • Chapter 19: Injury, Poisoning and Certain Other Consequences of External Causes (S00-T88).

CH19 Parent Instructions

Excludes2(Not included here. Code separately if applicable.)
Use Additional Code
  • code to identify any retained foreign body, if applicable (Z18.-)

Instructional Notes

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(Not coded here. Use a different code.)
  • toxic reaction to local anesthesia in pregnancy (O29.3-)
Excludes2(Not included here. Code separately if applicable.)
  • 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)
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)
Use Additional Code
  • 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-)

Clinical Hierarchy

BillableHas subcodes
CH19Injury, poisoning and certain other consequences of external causes (S00-T88)
T36-T50Poisoning by, adverse effects of and underdosing of drugs, medicaments and biological substances (T36-T50)Not billable
T36Poisoning by, adverse effect of and underdosing of systemic antibioticsSubcodes
T37Poisoning by, adverse effect of and underdosing of other systemic anti-infectives and antiparasiticsSubcodes
T38Poisoning by, adverse effect of and underdosing of hormones and their synthetic substitutes and antagonists, not elsewhere classifiedSubcodes
T39Poisoning by, adverse effect of and underdosing of nonopioid analgesics, antipyretics and antirheumaticsSubcodes
T40Poisoning by, adverse effect of and underdosing of narcotics and psychodysleptics [hallucinogens]Subcodes
T41Poisoning by, adverse effect of and underdosing of anesthetics and therapeutic gasesSubcodes
T42Poisoning by, adverse effect of and underdosing of antiepileptic, sedative- hypnotic and antiparkinsonism drugsSubcodes
T43Poisoning by, adverse effect of and underdosing of psychotropic drugs, not elsewhere classifiedSubcodes
T44Poisoning by, adverse effect of and underdosing of drugs primarily affecting the autonomic nervous systemSubcodes
T45Poisoning by, adverse effect of and underdosing of primarily systemic and hematological agents, not elsewhere classifiedSubcodes
T46Poisoning by, adverse effect of and underdosing of agents primarily affecting the cardiovascular systemSubcodes
T47Poisoning by, adverse effect of and underdosing of agents primarily affecting the gastrointestinal systemSubcodes
T48Poisoning by, adverse effect of and underdosing of agents primarily acting on smooth and skeletal muscles and the respiratory systemSubcodes
T49Poisoning by, adverse effect of and underdosing of topical agents primarily affecting skin and mucous membrane and by ophthalmological, otorhinorlaryngological and dental drugsSubcodes
T50Poisoning by, adverse effect of and underdosing of diuretics and other and unspecified drugs, medicaments and biological substancesSubcodes

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to T36-T50:

chapterCH19
Injury, poisoning and certain other consequences of external causes (S00-T88)
View context instructions

MS-DRG Classification

2026

No direct MS-DRG triggers identified.

Cross Reference

Find Procedures (ICD-10-PCS)

Find surgical and procedural codes related to Poisoning by, adverse effects of and underdosing of drugs, medicaments and biological substances (T36-T50).

Search PCS Codes