T40 is a non-billable/non-specific diagnosis code from the 2024 ICD-10-CM used to classify the following condition: Poisoning by, adverse effect of and underdosing of narcotics and psychodysleptics [hallucinogens].
Type 2 excludes
Drug dependence and related mental and behavioral disorders due to psychoactive substance use (F10.-F19.-)
Seventh character note
The appropriate 7th character is to be added to each code from category T40
Seventh character extensions
A: initial encounter
D: subsequent encounter
S: sequela
Codes
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 other opioids
T40.3
Poisoning by, adverse effect of and underdosing of methadone
T40.4
Poisoning by, adverse effect of and underdosing of other synthetic narcotics
T40.5
Poisoning by, adverse effect of and underdosing of cocaine
T40.6
Poisoning by, adverse effect of and underdosing of other and unspecified narcotics
T40.7
Poisoning by, adverse effect of and underdosing of cannabis (derivatives)
T40.8
Poisoning by and adverse effect of lysergide [LSD]
T40.9
Poisoning by, adverse effect of and underdosing of other and unspecified psychodysleptics [hallucinogens]
Versions
2024
No changes
2023
No changes
2022
No changes
2021
No changes
2020
No changes
2019
No changes
2018
No changes
2017
No changes
2016
New code