T44.90
T44.90: Poisoning by, adverse effect of and underdosing of unspecified drugs primarily affecting the autonomic nervous system
Non-billable headerICD-10-CM
T44.90 is a non-billable header ICD-10-CM code for poisoning by, adverse effect of and underdosing of unspecified drugs primarily affecting the autonomic nervous system. 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 T44
- A
- initial encounter
- D
- subsequent encounter
- S
- sequela
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 T44.90
6 child codes. Green means billable.
- T44.901Poisoning by unspecified drugs primarily affecting the autonomic nervous system, accidental (unintentional)
- T44.902Poisoning by unspecified drugs primarily affecting the autonomic nervous system, intentional self-harm
- T44.903Poisoning by unspecified drugs primarily affecting the autonomic nervous system, assault
- T44.904Poisoning by unspecified drugs primarily affecting the autonomic nervous system, undetermined
- T44.905Adverse effect of unspecified drugs primarily affecting the autonomic nervous system
- T44.906Underdosing of unspecified drugs primarily affecting the autonomic nervous system