MCMCB Pro
T25.791D

T25.791DCorrosion of third degree of multiple sites of right ankle and foot, subsequent encounter

Billable / specific codeICD-10-CMPOA exemptright

T25.791D is a billable, specific ICD-10-CM code for corrosion of third degree of multiple sites of right ankle and foot, subsequent encounter. It is valid for submission on a claim.

7th character "D" — subsequent encounter

The appropriate 7th character is to be added to each code from category T25

A
initial encounter
D
subsequent encounter
S
sequela

Risk adjustment

T25.791D 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

T25.791D is named in 7 Medicare coverage policies 7 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.

  • A53058Billing and Coding: Home Health Physical Therapy
  • A53065Billing and Coding: Outpatient Physical Therapy
  • A57221Billing and Coding: Plastic Surgery
  • A57311Billing and Coding: Physical Therapy - Home Health

Related codes at this level

Codes that share T25.791. If T25.791D is not quite right, the correct code is usually one of these.

Questions about T25.791D

Is T25.791D a billable ICD-10-CM code?
Yes. T25.791D is a billable, specific ICD-10-CM code and is valid for submission on a claim.
Where does T25.791D sit in the tabular list?
Injury, poisoning and certain other consequences of external causes (S00-T88), in the block Burns and corrosions of external body surface, specified by site (T20-T25).
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.