C44.391 — Other specified malignant neoplasm of skin of nose
C44.391 is a billable, specific ICD-10-CM code for other specified malignant neoplasm of skin of nose. It is valid for submission on a claim.
Other codes that can never be billed with C44.391
These codes carry an Excludes1 note pointing at C44.391. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading C44.391 alone.
- C30.0Malignant neoplasm of nasal cavity
Risk adjustment
C44.391 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
C44.391 is named in 71 Medicare coverage policies — 71 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.
- A52450Billing and Coding: Paclitaxel (e.g., Taxol®/Abraxane ™)
- A52479Oral Anticancer Drugs - Policy Article
- A52480Oral Antiemetic Drugs (Replacement for Intravenous Antiemetics) - Policy Article
- A53883Billing and Coding: Mohs Micrographic Surgery (MMS)
Related codes at this level
Codes that share C44.39. If C44.391 is not quite right, the correct code is usually one of these.
Questions about C44.391
- Is C44.391 a billable ICD-10-CM code?
- Yes. C44.391 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does C44.391 sit in the tabular list?
- Neoplasms (C00-D49), in the block Melanoma and other malignant neoplasms of skin (C43-C44).