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

 Chapter Notes

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)

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-)

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

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)

Category List

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