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T79.7XXS

T79.7XXSTraumatic subcutaneous emphysema, sequela

Billable / specific codeICD-10-CMPOA exempt

T79.7XXS is a billable, specific ICD-10-CM code for traumatic subcutaneous emphysema, sequela. It is valid for submission on a claim.

7th character "S" — sequela

The appropriate 7th character is to be added to each code from category T79

A
initial encounter
D
subsequent encounter
S
sequela

Excludes2 — not included here, but may coexist

The excluded condition is not part of this code, but a patient can have both. You may code both.

  • emphysema NOS (J43)
  • emphysema (subcutaneous) resulting from a procedure (T81.82)

Risk adjustment

T79.7XXS 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.

Medicare coverage

T79.7XXS is named in 5 Medicare coverage policies 5 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.

  • A53057Billing and Coding: Home Health Occupational Therapy
  • A53058Billing and Coding: Home Health Physical Therapy
  • A53064Billing and Coding: Outpatient Occupational Therapy
  • A56580Billing and Coding: Computerized Axial Tomography (CT), Thorax

Related codes at this level

Codes that share T79.7. If T79.7XXS is not quite right, the correct code is usually one of these.

Questions about T79.7XXS

Is T79.7XXS a billable ICD-10-CM code?
Yes. T79.7XXS is a billable, specific ICD-10-CM code and is valid for submission on a claim.
Where does T79.7XXS 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).
ICD-10-CMFY2026-Apr· effective April 1, 2026

Loaded directly from the CMS/NCHS ICD-10-CM public-domain release — see data sources and our editorial policy. If this page disagrees with the CMS tabular list, this page is wrong. Reference information for professional coders; not medical or billing advice.