1. Home
  2. ICD-10-CM Codes List
  3. C00–D49
  4. D00-D09
  5. Melanoma in situ (D03)

Melanoma in situ (D03)

ICD-10 code D03 and its subcodes are used specifically to classify melanoma in situ, a very early stage of melanoma skin cancer where abnormal melanocyte cells are confined to the epidermis and have not invaded deeper tissues.

This coding section covers various anatomical locations, including the lip (D03.0), eyelid (D03.1 and descendants), ear (D03.2), face (D03.3), scalp and neck (D03.4), trunk (D03.5), upper and lower limbs (D03.6 and D03.7), and other sites (D03.8). For example, the code D03.0 corresponds to melanoma in situ of the lip and can also be identified by synonyms like "melanoma in situ of vermilion border of lip." Codes such as D03.10 help specify melanoma in situ on the eyelid and include terms like "lentigo maligna" or "carcinoma in situ of skin of eyelid." These distinctions aid clinicians and coders in accurately documenting the melanoma’s exact location, guiding treatment plans and record keeping. When the site is not specified, D03.9 is used. Understanding and applying these codes correctly ensures precise communication about the presence of non-invasive melanoma, facilitating early intervention and monitoring.

  • Neoplasms (C00–D49)

    • In situ neoplasms (D00-D09)

        • Melanoma in situ (D03)

        • D03 Melanoma in situ
        • D03.0 Melanoma in situ of lip
        • D03.1 Melanoma in situ of eyelid, including canthus
        • D03.10 Melanoma in situ of unspecified eyelid, including canthus
        • D03.11 Melanoma in situ of right eyelid, including canthus
        • D03.111 Melanoma in situ of right upper eyelid, including canthus
        • D03.112 Melanoma in situ of right lower eyelid, including canthus
        • D03.12 Melanoma in situ of left eyelid, including canthus
        • D03.121 Melanoma in situ of left upper eyelid, including canthus
        • D03.122 Melanoma in situ of left lower eyelid, including canthus
        • D03.2 Melanoma in situ of ear and external auricular canal
        • D03.20 Melanoma in situ of unspecified ear and external auricular canal
        • 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
        • 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
        • D03.60 Melanoma in situ of unspecified upper limb, including shoulder
        • D03.61 Melanoma in situ of right upper limb, including shoulder
        • D03.62 Melanoma in situ of left upper limb, including shoulder
        • 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