T48.991
T48.991: Poisoning by other agents primarily acting on the respiratory system, accidental (unintentional)
Non-billable headerICD-10-CM
T48.991 is a non-billable header ICD-10-CM code for poisoning by other agents primarily acting on the respiratory system, accidental (unintentional). 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 T48
- 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 T48.991
3 child codes. Green means billable.
- T48.991APoisoning by other agents primarily acting on the respiratory system, accidental (unintentional), initial encounter
- T48.991DPoisoning by other agents primarily acting on the respiratory system, accidental (unintentional), subsequent encounter
- T48.991SPoisoning by other agents primarily acting on the respiratory system, accidental (unintentional), sequela
Other codes under T48.99
- T48.992Poisoning by other agents primarily acting on the respiratory system, intentional self-harm
- T48.993Poisoning by other agents primarily acting on the respiratory system, assault
- T48.994Poisoning by other agents primarily acting on the respiratory system, undetermined
- T48.995Adverse effect of other agents primarily acting on the respiratory system
- T48.996Underdosing of other agents primarily acting on the respiratory system