Current
T40 — Poisoning by, adverse effect of and underdosing of narcotics and psychodysleptics [hallucinogens]
Part of Chapter 19: Injury, poisoning and certain other consequences of external causes , block Poisoning by, adverse effects of and underdosing of drugs, medicaments and biological substances (T36-T50) .
Official Notes
Excludes2
drug dependence and related mental and behavioral disorders due to psychoactive substance use (F10.-F19.-)
7th Character
The appropriate 7th character is to be added to each code from category T40
7th Character
A - initial encounter
7th Character
D - subsequent encounter
7th Character
S - sequela
Child Codes
- T40.0 Poisoning by, adverse effect of and underdosing of opium Has subcodes
- T40.1 Poisoning by and adverse effect of heroin Has subcodes
- T40.2 Poisoning by, adverse effect of and underdosing of other opioids Has subcodes
- T40.3 Poisoning by, adverse effect of and underdosing of methadone Has subcodes
- T40.4 Poisoning by, adverse effect of and underdosing of other synthetic narcotics Has subcodes
- T40.5 Poisoning by, adverse effect of and underdosing of cocaine Has subcodes
- T40.6 Poisoning by, adverse effect of and underdosing of other and unspecified narcotics Has subcodes
- T40.7 Poisoning by, adverse effect of and underdosing of cannabis (derivatives) Has subcodes
- T40.8 Poisoning by and adverse effect of lysergide [LSD] Has subcodes
- T40.9 Poisoning by, adverse effect of and underdosing of other and unspecified psychodysleptics [hallucinogens] Has subcodes
FY 2027 effective October 1, 2026 · CDC NCHS and CMS