T40.0
T40.0: Poisoning by, adverse effect of and underdosing of opium
Non-billable headerICD-10-CM
T40.0 is a non-billable header ICD-10-CM code for poisoning by, adverse effect of and underdosing of opium. It cannot be billed on its own: choose one of the more specific child codes below. This code also requires a 7th character before it is complete.
This code requires a 7th character
The appropriate 7th character is to be added to each code from category T40
- A
- initial encounter
- D
- subsequent encounter
- S
- sequela
Excludes2 inherited from the categories above T40.0
Not part of this code, but both may be coded when both are present.
Other codes that can never be billed with T40.0
Their own Excludes1 notes name this code, so the conflict is not listed above.
- T41Poisoning by, adverse effect of and underdosing of anesthetics and therapeutic gases
Risk adjustment
No CMS-HCC V28 category: this code does not change a RAF score.
Code history
Unchanged in every release from FY2024 to FY2027.
Code to one of these instead T40.0
1 child code. Green means billable.
Other codes under T40
- T40.1Poisoning by and adverse effect of heroin
- T40.2Poisoning by, adverse effect of and underdosing of other opioids
- T40.3Poisoning by, adverse effect of and underdosing of methadone
- T40.4Poisoning by, adverse effect of and underdosing of other synthetic narcotics
- T40.5Poisoning by, adverse effect of and underdosing of cocaine
- T40.6Poisoning by, adverse effect of and underdosing of other and unspecified narcotics
- T40.7Poisoning by, adverse effect of and underdosing of cannabis (derivatives)
- T40.8Poisoning by and adverse effect of lysergide [LSD]
- T40.9Poisoning by, adverse effect of and underdosing of other and unspecified psychodysleptics [hallucinogens]