T23.509
T23.509: Corrosion of first degree of unspecified hand, unspecified site
Non-billable headerICD-10-CMunspecified
T23.509 is a non-billable header ICD-10-CM code for corrosion of first degree of unspecified hand, unspecified site. 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›hand›first degree
Code history
Unchanged in every release from FY2024 to FY2027.
Code to one of these instead T23.509
3 child codes. Green means billable.