T24.5 — Corrosion of first degree of lower limb, except ankle and foot
Not billable
Is T24.5 billable?
No — T24.5 is a non-billable header code. T24.5 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 45 billable codes beneath T24.5.
Billable codes under this header
- T24.501ACorrosion of first degree of unspecified site of right lower limb, except ankle and foot, initial encounter
- T24.501DCorrosion of first degree of unspecified site of right lower limb, except ankle and foot, subsequent encounter
- T24.501SCorrosion of first degree of unspecified site of right lower limb, except ankle and foot, sequela
- T24.502ACorrosion of first degree of unspecified site of left lower limb, except ankle and foot, initial encounter
- T24.502DCorrosion of first degree of unspecified site of left lower limb, except ankle and foot, subsequent encounter
- T24.502SCorrosion of first degree of unspecified site of left lower limb, except ankle and foot, sequela
- T24.509ACorrosion of first degree of unspecified site of unspecified lower limb, except ankle and foot, initial encounter
- T24.509DCorrosion of first degree of unspecified site of unspecified lower limb, except ankle and foot, subsequent encounter
- T24.509SCorrosion of first degree of unspecified site of unspecified lower limb, except ankle and foot, sequela
- T24.511ACorrosion of first degree of right thigh, initial encounter
- T24.511DCorrosion of first degree of right thigh, subsequent encounter
- T24.511SCorrosion of first degree of right thigh, sequela
- T24.512ACorrosion of first degree of left thigh, initial encounter
- T24.512DCorrosion of first degree of left thigh, subsequent encounter
- T24.512SCorrosion of first degree of left thigh, sequela
- T24.519ACorrosion of first degree of unspecified thigh, initial encounter
- T24.519DCorrosion of first degree of unspecified thigh, subsequent encounter
- T24.519SCorrosion of first degree of unspecified thigh, sequela
- T24.521ACorrosion of first degree of right knee, initial encounter
- T24.521DCorrosion of first degree of right knee, subsequent encounter
- T24.521SCorrosion of first degree of right knee, sequela
- T24.522ACorrosion of first degree of left knee, initial encounter
- T24.522DCorrosion of first degree of left knee, subsequent encounter
- T24.522SCorrosion of first degree of left knee, sequela
- T24.529ACorrosion of first degree of unspecified knee, initial encounter
- T24.529DCorrosion of first degree of unspecified knee, subsequent encounter
- T24.529SCorrosion of first degree of unspecified knee, sequela
- T24.531ACorrosion of first degree of right lower leg, initial encounter
- T24.531DCorrosion of first degree of right lower leg, subsequent encounter
- T24.531SCorrosion of first degree of right lower leg, sequela
- T24.532ACorrosion of first degree of left lower leg, initial encounter
- T24.532DCorrosion of first degree of left lower leg, subsequent encounter
- T24.532SCorrosion of first degree of left lower leg, sequela
- T24.539ACorrosion of first degree of unspecified lower leg, initial encounter
- T24.539DCorrosion of first degree of unspecified lower leg, subsequent encounter
- T24.539SCorrosion of first degree of unspecified lower leg, sequela
- T24.591ACorrosion of first degree of multiple sites of right lower limb, except ankle and foot, initial encounter
- T24.591DCorrosion of first degree of multiple sites of right lower limb, except ankle and foot, subsequent encounter
- T24.591SCorrosion of first degree of multiple sites of right lower limb, except ankle and foot, sequela
- T24.592ACorrosion of first degree of multiple sites of left lower limb, except ankle and foot, initial encounter
- T24.592DCorrosion of first degree of multiple sites of left lower limb, except ankle and foot, subsequent encounter
- T24.592SCorrosion of first degree of multiple sites of left lower limb, except ankle and foot, sequela
- T24.599ACorrosion of first degree of multiple sites of unspecified lower limb, except ankle and foot, initial encounter
- T24.599DCorrosion of first degree of multiple sites of unspecified lower limb, except ankle and foot, subsequent encounter
- T24.599SCorrosion of first degree of multiple sites of unspecified lower limb, except ankle and foot, sequela
T24.5 at a glance
| Code | T24.5 |
|---|---|
| Description | Corrosion of first degree of lower limb, except 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 T24.5. T24.5 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 T24.5 to fully describe the condition. T24.5 is sequenced first.
- external cause code to identify place (Y92)
Use additional code — inherited from Chapter 19
Report an additional code alongside T24.5 to fully describe the condition. T24.5 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 T24.5 to fully describe the condition. T24.5 is sequenced first.
Excludes2 — not included here — inherited from Chapter 19
The conditions below are not part of T24.5, but a patient may have both at the same time. When documentation supports it, T24.5 and the excluded code may both be reported.
Excludes2 — not included here — inherited from T24
The conditions below are not part of T24.5, but a patient may have both at the same time. When documentation supports it, T24.5 and the excluded code may both be reported.
What codes fall under T24.5? (5)
- T24.50Corrosion of first degree of unspecified site of lower limb, except ankle and footnot billable
- T24.51Corrosion of first degree of thighnot billable
- T24.52Corrosion of first degree of kneenot billable
- T24.53Corrosion of first degree of lower legnot billable
- T24.59Corrosion of first degree of multiple sites of lower limb, except ankle and footnot billable
How long has T24.5 existed?
T24.5 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 T24 family? (7)
- T24.0Burn of unspecified degree of lower limb, except ankle and footnot billable
- T24.1Burn of first degree of lower limb, except ankle and footnot billable
- T24.2Burn of second degree of lower limb, except ankle and footnot billable
- T24.3Burn of third degree of lower limb, except ankle and footnot billable
- T24.4Corrosion of unspecified degree of lower limb, except ankle and footnot billable
- T24.6Corrosion of second degree of lower limb, except ankle and footnot billable
- T24.7Corrosion of third degree of lower limb, except ankle and footnot billable