C43 Malignant melanoma of skin

Category / Non-billable header 32 subcodes

Block: Melanoma and other malignant neoplasms of skin (C43-C44)

Excludes 1 (cannot be coded together)

  • melanoma in situ (D03.-)

Excludes 2 (not included here)

  • malignant melanoma of skin of genital organs (C51-C52, C60.-, C63.-)
  • Merkel cell carcinoma (C4A.-)
  • sites other than skin-code to malignant neoplasm of the site

Subcodes

Each subcode links to a detail page with full clinical annotations.

Code Description Billable
C43..0 Malignant melanoma of lip Yes
C43..1 Malignant melanoma of eyelid, including canthus No
C43..10 Malignant melanoma of unspecified eyelid, including canthus Yes
C43..11 Malignant melanoma of right eyelid, including canthus No
C43..111 Malignant melanoma of right upper eyelid, including canthus Yes
C43..112 Malignant melanoma of right lower eyelid, including canthus Yes
C43..12 Malignant melanoma of left eyelid, including canthus No
C43..121 Malignant melanoma of left upper eyelid, including canthus Yes
C43..122 Malignant melanoma of left lower eyelid, including canthus Yes
C43..2 Malignant melanoma of ear and external auricular canal No
C43..20 Malignant melanoma of unspecified ear and external auricular canal Yes
C43..21 Malignant melanoma of right ear and external auricular canal Yes
C43..22 Malignant melanoma of left ear and external auricular canal Yes
C43..3 Malignant melanoma of other and unspecified parts of face No
C43..30 Malignant melanoma of unspecified part of face Yes
C43..31 Malignant melanoma of nose Yes
C43..39 Malignant melanoma of other parts of face Yes
C43..4 Malignant melanoma of scalp and neck Yes
C43..5 Malignant melanoma of trunk No
C43..51 Malignant melanoma of anal skin Yes
C43..52 Malignant melanoma of skin of breast Yes
C43..59 Malignant melanoma of other part of trunk Yes
C43..6 Malignant melanoma of upper limb, including shoulder No
C43..60 Malignant melanoma of unspecified upper limb, including shoulder Yes
C43..61 Malignant melanoma of right upper limb, including shoulder Yes
C43..62 Malignant melanoma of left upper limb, including shoulder Yes
C43..7 Malignant melanoma of lower limb, including hip No
C43..70 Malignant melanoma of unspecified lower limb, including hip Yes
C43..71 Malignant melanoma of right lower limb, including hip Yes
C43..72 Malignant melanoma of left lower limb, including hip Yes
C43..8 Malignant melanoma of overlapping sites of skin Yes
C43..9 Malignant melanoma of skin, unspecified Yes

Last reviewed: September 2026