T23.609D — Corrosion of second degree of unspecified hand, unspecified site, subsequent encounter
T23.609D is a billable, specific ICD-10-CM code for corrosion of second degree of unspecified hand, unspecified site, subsequent encounter. It is valid for submission on a claim.
7th character "D" — subsequent encounter
The appropriate 7th character is to be added to each code from category T23
- A
- initial encounter
- D
- subsequent encounter
- S
- sequela
Risk adjustment
T23.609D 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
T23.609D is named in 2 Medicare coverage policies — 1 listing it as supporting medical necessity, and 1 listing it as NOT covered. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.
- A56566Billing and Coding: Outpatient Physical and Occupational Therapy Servicesnot covered
- A59186Billing and Coding: Magnesium
Related codes at this level
Codes that share T23.609. If T23.609D is not quite right, the correct code is usually one of these.
Questions about T23.609D
- Is T23.609D a billable ICD-10-CM code?
- Yes. T23.609D is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does T23.609D 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).