D04.22
D04.22 — Carcinoma in situ of skin of left ear and external auricular canal
Billable / specific codeICD-10-CMleft
D04.22 is a billable, specific ICD-10-CM code for carcinoma in situ of skin of left ear and external auricular canal. It is valid for submission on a claim.
Risk adjustment
D04.22 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
D04.22 is named in 38 Medicare coverage policies — 38 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.
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- A53883Billing and Coding: Mohs Micrographic Surgery (MMS)
- A54768Billing and Coding: Cardiac Blood Pool Imaging (Multiple Gated Acquisition Scanning- MUGA, Ventriculography) When Performed in Conjunction with Cardiotoxic Chemotherapy
- A56346Billing and Coding: Removal of Benign and Malignant Skin Lesions
Related codes at this level
Codes that share D04.2. If D04.22 is not quite right, the correct code is usually one of these.
Questions about D04.22
- Is D04.22 a billable ICD-10-CM code?
- Yes. D04.22 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does D04.22 sit in the tabular list?
- Neoplasms (C00-D49), in the block In situ neoplasms (D00-D09).