T23.531
T23.531: Corrosion of first degree of multiple right fingers (nail), not including thumb
Non-billable headerICD-10-CMright
T23.531 is a non-billable header ICD-10-CM code for corrosion of first degree of multiple right fingers (nail), not including thumb. 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 T23
- A
- initial encounter
- D
- subsequent encounter
- S
- sequela
Risk adjustment
No CMS-HCC V28 category: this code does not change a RAF score.
Alphabetic index entries that lead here
- Corrosion›finger›multiple sites›right›first degree
Code history
Unchanged in every release from FY2024 to FY2027.
Code to one of these instead T23.531
3 child codes. Green means billable.
- T23.531ACorrosion of first degree of multiple right fingers (nail), not including thumb, initial encounter
- T23.531DCorrosion of first degree of multiple right fingers (nail), not including thumb, subsequent encounter
- T23.531SCorrosion of first degree of multiple right fingers (nail), not including thumb, sequela