T25.639S
T25.639S: Corrosion of second degree of unspecified toe(s) (nail), sequela
Billable / specific codeICD-10-CMPOA exempt
T25.639S is a billable, specific ICD-10-CM code for corrosion of second degree of unspecified toe(s) (nail), sequela. It is valid for submission on a claim.
Check T25.639S with the rest of the claim: free scrubber7th character "S": sequela
The appropriate 7th character is to be added to each code from category T25
- A
- initial encounter
- D
- subsequent encounter
- S
- sequela
Risk adjustment
No CMS-HCC V28 category: this code does not change a RAF score.
Medicare coverage
T25.639S is named in 2 Medicare coverage policies: 1 listing it as supporting medical necessity, and 1 listing it as NOT covered. Which one applies depends on your Medicare contractor.
- A56566Billing and Coding: Outpatient Physical and Occupational Therapy Servicesnot covered
- A59186Billing and Coding: Magnesium
Code history
Unchanged in every release from FY2024 to FY2027.