C4A.112
C4A.112 — Merkel cell carcinoma of right lower eyelid, including canthus
Billable / specific codeICD-10-CMright
C4A.112 is a billable, specific ICD-10-CM code for merkel cell carcinoma of right lower eyelid, including canthus. It is valid for submission on a claim.
Risk adjustment
C4A.112 risk-adjusts. Under the CMS-HCC V28 model it maps to this category:
- HCC 21 Lymphoma and Other Cancers0.671 RAF
Coefficient shown for the Community Non-dual Aged segment. A higher HCC in the same hierarchy will suppress this one, so capturing it does not always add score.
Medicare coverage
C4A.112 is named in 57 Medicare coverage policies — 57 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.
- A52479Oral Anticancer Drugs - Policy Article
- A52479Oral Anticancer Drugs - Policy Article
- A52479Oral Anticancer Drugs - Policy Article
- A52480Oral Antiemetic Drugs (Replacement for Intravenous Antiemetics) - Policy Article
Related codes at this level
Codes that share C4A.11. If C4A.112 is not quite right, the correct code is usually one of these.
Questions about C4A.112
- Is C4A.112 a billable ICD-10-CM code?
- Yes. C4A.112 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does C4A.112 sit in the tabular list?
- Neoplasms (C00-D49), in the block Melanoma and other malignant neoplasms of skin (C43-C44).