D03.4 Melanoma in situ of scalp and neck

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)

• 172.4 Malignant melanoma of skin of scalp and neck (approximate)

Code annotations containing back-references to D03.4

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 D03.4

• Melanoma (malignant) › in situ › neck
• Melanoma (malignant) › in situ › scalp

Nearby codes

• D03.21 Melanoma in situ of right ear and external auricular canal
• D03.22 Melanoma in situ of left ear and external auricular canal
• D03.3 Melanoma in situ of other and unspecified parts of face
• D03.30 Melanoma in situ of unspecified part of face
• D03.39 Melanoma in situ of other parts of face
• D03.4 Melanoma in situ of scalp and neck (this code)
• D03.5 Melanoma in situ of trunk
• D03.51 Melanoma in situ of anal skin
• D03.52 Melanoma in situ of breast (skin) (soft tissue)
• D03.59 Melanoma in situ of other part of trunk
• D03.6 Melanoma in situ of upper limb, including shoulder