D03.9 Melanoma in situ, unspecified

Billable ICD-10-CM code, FY2026.

Risk adjustment (HCC)

• CMS-HCC V28: HCC 23 — Prostate, Breast, and Other Cancers and Tumors
• CMS-HCC V22: HCC 12 — Breast, Prostate, and Other Cancers and Tumors
• RxHCC V08: HCC 22 — Prostate, Breast, Bladder, and Other Cancers and Tumors
• ESRD V24: HCC 12

MS-DRG index

Defines the logic of DRG(s) 595-596 in MDC 09.

Approximate ICD-9-CM (GEMs)

• 172.9 Melanoma of skin, site unspecified (approximate)

Code annotations containing back-references to D03.9

Back-references to D03

• Type 1 Excludes: C43 Malignant melanoma of skin ("melanoma in situ (D03.-)")
• Type 1 Excludes: D00 Carcinoma in situ of oral cavity, esophagus and stomach ("melanoma in situ (D03.-)")
• Type 1 Excludes: D01 Carcinoma in situ of other and unspecified digestive organs ("melanoma in situ (D03.-)")
• Type 1 Excludes: D02 Carcinoma in situ of middle ear and respiratory system ("melanoma in situ (D03.-)")
• Type 1 Excludes: D04 Carcinoma in situ of skin ("melanoma in situ (D03.-)")
• Type 1 Excludes: D09 Carcinoma in situ of other and unspecified sites ("melanoma in situ (D03.-)")

Diagnosis Index entries for D03.9

• Melanoma (malignant) › in situ
• Melanoma (malignant) › in situ › nail

Nearby codes

• D03.7 Melanoma in situ of lower limb, including hip
• D03.70 Melanoma in situ of unspecified lower limb, including hip
• D03.71 Melanoma in situ of right lower limb, including hip
• D03.72 Melanoma in situ of left lower limb, including hip
• D03.8 Melanoma in situ of other sites
• D03.9 Melanoma in situ, unspecified (this code)