ICDMine.com › Browse ICD-10-CM Codes › Ch. 19: Injury, poisoning and certain other consequences of external causes (S00-T88) › Poisoning by, adverse effects of and underdosing of drugs, medicaments and biological substances (T36-T50) › T40

T40Narcotics and psychodysleptics

ICD-10-CM category (non-billable header) code — part of Poisoning by, adverse effects of and underdosing of drugs, medicaments and biological substances (T36-T50)

Code Details

Full description	Poisoning by, adverse effect of and underdosing of narcotics and psychodysleptics [hallucinogens]
Billable	No — use a more specific child code
Chapter	Chapter 19: Injury, poisoning and certain other consequences of external causes (S00-T88)
Section	Poisoning by, adverse effects of and underdosing of drugs, medicaments and biological substances (T36-T50)

Valid 7th Characters

A	initial encounter
D	subsequent encounter
S	sequela

Coding Notes

Excludes2 (not part of this condition — may code both)

drug dependence and related mental and behavioral disorders due to psychoactive substance use (F10.-F19.-)

7th Character Note

The appropriate 7th character is to be added to each code from category T40

Subcategories (10)

T40.0 Poisoning by, adverse effect of and underdosing of opium
T40.1 Poisoning by and adverse effect of heroin
T40.2 Poisoning by, adverse effect of and underdosing of opioids
T40.3 Poisoning by, adverse effect of and underdosing of methadone
T40.4 Synthetic narcotics
T40.5 Poisoning by, adverse effect of and underdosing of cocaine
T40.6 And unsp narcotics
T40.7 Cannabis (derivatives)
T40.8 Poisoning by and adverse effect of lysergide [LSD]
T40.9 And unsp psychodysleptics

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