Notes
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.
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
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)
Type 1 excludes
Toxic reaction to local anesthesia in pregnancy (O29.3-)
Type 2 excludes
Codes
T36
Poisoning by, adverse effect of and underdosing of systemic antibiotics
T37
Poisoning by, adverse effect of and underdosing of other systemic anti-infectives and antiparasitics
T38
Poisoning by, adverse effect of and underdosing of hormones and their synthetic substitutes and antagonists, not elsewhere classified
T39
Poisoning by, adverse effect of and underdosing of nonopioid analgesics, antipyretics and antirheumatics
T40
Poisoning by, adverse effect of and underdosing of narcotics and psychodysleptics [hallucinogens]
T41
Poisoning by, adverse effect of and underdosing of anesthetics and therapeutic gases
T42
Poisoning by, adverse effect of and underdosing of antiepileptic, sedative- hypnotic and antiparkinsonism drugs
T43
Poisoning by, adverse effect of and underdosing of psychotropic drugs, not elsewhere classified
T44
Poisoning by, adverse effect of and underdosing of drugs primarily affecting the autonomic nervous system
T45
Poisoning by, adverse effect of and underdosing of primarily systemic and hematological agents, not elsewhere classified
T46
Poisoning by, adverse effect of and underdosing of agents primarily affecting the cardiovascular system
T47
Poisoning by, adverse effect of and underdosing of agents primarily affecting the gastrointestinal system
T48
Poisoning by, adverse effect of and underdosing of agents primarily acting on smooth and skeletal muscles and the respiratory system
T49
Poisoning by, adverse effect of and underdosing of topical agents primarily affecting skin and mucous membrane and by ophthalmological, otorhinorlaryngological and dental drugs
T50
Poisoning by, adverse effect of and underdosing of diuretics and other and unspecified drugs, medicaments and biological substances
Versions
2025
No changes
2024
No changes
2023
No changes
2022
No changes
2021
Code changed
Type 2 excludes
abuse and dependence of psychoactive substances (F10-F19)abuse of non-dependence-producing substances (F55.-)drug reaction and poisoning affecting newborn (P00-P96)pathological drug intoxication (inebriation) (F10-F19)
- 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)
2020
No changes
2019
Code changed
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)
- , 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)
2018
No changes
2017
No changes
2016
New code