T43.1
T43.1: Poisoning by, adverse effect of and underdosing of monoamine-oxidase-inhibitor antidepressants
Non-billable headerICD-10-CM
T43.1 is a non-billable header ICD-10-CM code for poisoning by, adverse effect of and underdosing of monoamine-oxidase-inhibitor antidepressants. 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 T43
- A
- initial encounter
- D
- subsequent encounter
- S
- sequela
Excludes2 inherited from the categories above T43.1
Not part of this code, but both may be coded when both are present.
Written on T43: Poisoning by, adverse effect of and underdosing of psychotropic drugs, not elsewhere classified
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 T43.1
1 child code. Green means billable.
Other codes under T43
- T43.0Poisoning by, adverse effect of and underdosing of tricyclic and tetracyclic antidepressants
- T43.2Poisoning by, adverse effect of and underdosing of other and unspecified antidepressants
- T43.3Poisoning by, adverse effect of and underdosing of phenothiazine antipsychotics and neuroleptics
- T43.4Poisoning by, adverse effect of and underdosing of butyrophenone and thiothixene neuroleptics
- T43.5Poisoning by, adverse effect of and underdosing of other and unspecified antipsychotics and neuroleptics
- T43.6Poisoning by, adverse effect of and underdosing of psychostimulants
- T43.8Poisoning by, adverse effect of and underdosing of other psychotropic drugs
- T43.9Poisoning by, adverse effect of and underdosing of unspecified psychotropic drug