T79.A21
T79.A21 — Traumatic compartment syndrome of right lower extremity
Non-billable headerICD-10-CMright
T79.A21 is a non-billable header ICD-10-CM code for traumatic compartment syndrome of right lower extremity. 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 T79
- A
- initial encounter
- D
- subsequent encounter
- S
- sequela
Risk adjustment
T79.A21 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 T79.A21
3 child codes. Green means billable.
Related codes at this level
Codes that share T79.A2. If T79.A21 is not quite right, the correct code is usually one of these.
Questions about T79.A21
- Is T79.A21 a billable ICD-10-CM code?
- No. T79.A21 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
- Where does T79.A21 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).