D03.9 — Melanoma in situ, unspecified
D03.9 is a billable, specific ICD-10-CM code for melanoma in situ, unspecified. It is valid for submission on a claim.
Risk adjustment
D03.9 risk-adjusts. Under the CMS-HCC V28 model it maps to this category:
- HCC 23 Prostate, Breast, and Other Cancers and Tumors0.186 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
D03.9 is named in 21 Medicare coverage policies — 21 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 ™)
- A52450Billing and Coding: Paclitaxel (e.g., Taxol®/Abraxane ™)
- A52479Oral Anticancer Drugs - Policy Article
- A52479Oral Anticancer Drugs - Policy Article
How D03.9 is indexed
Coders do not find codes by browsing the tabular list — they look them up in the alphabetic index, under the word the physician wrote. These are the index entries that lead here, so you can see which chart wordings map to D03.9.
- Melanoma›in situ
- Melanoma›in situ›nail
Related codes at this level
Codes that share D03. If D03.9 is not quite right, the correct code is usually one of these.
- D03.0Melanoma in situ of lip
- D03.1Melanoma in situ of eyelid, including canthus
- D03.2Melanoma in situ of ear and external auricular canal
- D03.3Melanoma in situ of other and unspecified parts of face
- D03.4Melanoma in situ of scalp and neck
- D03.5Melanoma in situ of trunk
- D03.6Melanoma in situ of upper limb, including shoulder
- D03.7Melanoma in situ of lower limb, including hip
- D03.8Melanoma in situ of other sites
Questions about D03.9
- Is D03.9 a billable ICD-10-CM code?
- Yes. D03.9 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does D03.9 sit in the tabular list?
- Neoplasms (C00-D49), in the block In situ neoplasms (D00-D09).