T24.492A — Corrosion of unspecified degree of multiple sites of left lower limb, except ankle and foot, initial encounter
T24.492A is a billable, specific ICD-10-CM code for corrosion of unspecified degree of multiple sites of left lower limb, except ankle and foot, initial encounter. It is valid for submission on a claim.
7th character "A" — initial encounter
The appropriate 7th character is to be added to each code from category T24
- A
- initial encounter
- D
- subsequent encounter
- S
- sequela
Risk adjustment
T24.492A does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.
Medicare coverage
T24.492A is named in 2 Medicare coverage policies — 2 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.
- A56900Billing and Coding: Immunizations
- A59186Billing and Coding: Magnesium
Related codes at this level
Codes that share T24.492. If T24.492A is not quite right, the correct code is usually one of these.
Questions about T24.492A
- Is T24.492A a billable ICD-10-CM code?
- Yes. T24.492A is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does T24.492A sit in the tabular list?
- Injury, poisoning and certain other consequences of external causes (S00-T88), in the block Burns and corrosions of external body surface, specified by site (T20-T25).