T79.9XXA — Unspecified early complication of trauma, initial encounter
T79.9XXA is a billable, specific ICD-10-CM code for unspecified early complication of trauma, initial encounter. It is valid for submission on a claim.
7th character "A" — initial encounter
The appropriate 7th character is to be added to each code from category T79
- A
- initial encounter
- D
- subsequent encounter
- S
- sequela
Excludes2 inherited from the categories above T79.9XXA
Also inherited, and the opposite of Excludes1: these conditions are not part of T79.9XXA, but a patient can have both, so you may code both.
Risk adjustment
T79.9XXA 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 history
T79.9XXA has not changed since FY2024 — no addition, revision or deletion across the three most recent ICD-10-CM releases.
Related codes at this level
Codes that share T79.9. If T79.9XXA is not quite right, the correct code is usually one of these.
Questions about T79.9XXA
- Is T79.9XXA a billable ICD-10-CM code?
- Yes. T79.9XXA is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does T79.9XXA sit in the tabular list?
- Injury, poisoning and certain other consequences of external causes (S00-T88), in the block Certain early complications of trauma (T79).