T25.5 — Corrosion of first degree of ankle and foot
Is T25.5 billable?
No — T25.5 is a non-billable header code. T25.5 groups more specific codes and cannot be submitted on a claim. A valid ICD-10-CM code must be reported at the highest level of specificity available in its branch. Select one of the 36 billable codes beneath T25.5.
Billable codes under this header
- T25.511ACorrosion of first degree of right ankle, initial encounter
- T25.511DCorrosion of first degree of right ankle, subsequent encounter
- T25.511SCorrosion of first degree of right ankle, sequela
- T25.512ACorrosion of first degree of left ankle, initial encounter
- T25.512DCorrosion of first degree of left ankle, subsequent encounter
- T25.512SCorrosion of first degree of left ankle, sequela
- T25.519ACorrosion of first degree of unspecified ankle, initial encounter
- T25.519DCorrosion of first degree of unspecified ankle, subsequent encounter
- T25.519SCorrosion of first degree of unspecified ankle, sequela
- T25.521ACorrosion of first degree of right foot, initial encounter
- T25.521DCorrosion of first degree of right foot, subsequent encounter
- T25.521SCorrosion of first degree of right foot, sequela
- T25.522ACorrosion of first degree of left foot, initial encounter
- T25.522DCorrosion of first degree of left foot, subsequent encounter
- T25.522SCorrosion of first degree of left foot, sequela
- T25.529ACorrosion of first degree of unspecified foot, initial encounter
- T25.529DCorrosion of first degree of unspecified foot, subsequent encounter
- T25.529SCorrosion of first degree of unspecified foot, sequela
- T25.531ACorrosion of first degree of right toe(s) (nail), initial encounter
- T25.531DCorrosion of first degree of right toe(s) (nail), subsequent encounter
- T25.531SCorrosion of first degree of right toe(s) (nail), sequela
- T25.532ACorrosion of first degree of left toe(s) (nail), initial encounter
- T25.532DCorrosion of first degree of left toe(s) (nail), subsequent encounter
- T25.532SCorrosion of first degree of left toe(s) (nail), sequela
- T25.539ACorrosion of first degree of unspecified toe(s) (nail), initial encounter
- T25.539DCorrosion of first degree of unspecified toe(s) (nail), subsequent encounter
- T25.539SCorrosion of first degree of unspecified toe(s) (nail), sequela
- T25.591ACorrosion of first degree of multiple sites of right ankle and foot, initial encounter
- T25.591DCorrosion of first degree of multiple sites of right ankle and foot, subsequent encounter
- T25.591SCorrosion of first degree of multiple sites of right ankle and foot, sequela
- T25.592ACorrosion of first degree of multiple sites of left ankle and foot, initial encounter
- T25.592DCorrosion of first degree of multiple sites of left ankle and foot, subsequent encounter
- T25.592SCorrosion of first degree of multiple sites of left ankle and foot, sequela
- T25.599ACorrosion of first degree of multiple sites of unspecified ankle and foot, initial encounter
- T25.599DCorrosion of first degree of multiple sites of unspecified ankle and foot, subsequent encounter
- T25.599SCorrosion of first degree of multiple sites of unspecified ankle and foot, sequela
T25.5 at a glance
| Code | T25.5 |
|---|---|
| Description | Corrosion of first degree of ankle and foot |
| Billable | No — header code |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
Code first
The underlying condition below must be sequenced before T25.5. T25.5 describes a manifestation and cannot be the principal or first-listed diagnosis.
- (T51-T65) to identify chemical and intent
Use additional code
Report an additional code alongside T25.5 to fully describe the condition. T25.5 is sequenced first.
- external cause code to identify place (Y92)
Use additional code — inherited from Chapter 19
Report an additional code alongside T25.5 to fully describe the condition. T25.5 is sequenced first.
- code to identify any retained foreign body, if applicable (Z18.-)
Use additional code — inherited from T20-T25
Report an additional code alongside T25.5 to fully describe the condition. T25.5 is sequenced first.
Excludes2 — not included here — inherited from Chapter 19
The conditions below are not part of T25.5, but a patient may have both at the same time. When documentation supports it, T25.5 and the excluded code may both be reported.
What codes fall under T25.5? (4)
How long has T25.5 existed?
T25.5 has been in ICD-10-CM since at least FY2016, the earliest fiscal year on record here.
Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.
What other codes are in the T25 family? (7)
- T25.0Burn of unspecified degree of ankle and footnot billable
- T25.1Burn of first degree of ankle and footnot billable
- T25.2Burn of second degree of ankle and footnot billable
- T25.3Burn of third degree of ankle and footnot billable
- T25.4Corrosion of unspecified degree of ankle and footnot billable
- T25.6Corrosion of second degree of ankle and footnot billable
- T25.7Corrosion of third degree of ankle and footnot billable