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
T48.991 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.
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
Related codes at this level
Codes that share T48.99. If T48.991 is not quite right, the correct code is usually one of these.
- 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
Questions about T48.991
- Is T48.991 a billable ICD-10-CM code?
- No. T48.991 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
- Where does T48.991 sit in the tabular list?
- Injury, poisoning and certain other consequences of external causes (S00-T88), in the block Poisoning by, adverse effects of and underdosing of drugs, medicaments and biological substances (T36-T50).