Melanoma in situ (D03) ICD-10-CM
The D03 code range covers melanoma in situ with 32 ICD-10-CM diagnosis codes. 23 of them are billable and valid for claim submission in fiscal year 2026, and the category headers group them but cannot themselves be billed.
Codes in the D03 Range 32 codes · 23 billable
- D03 Melanoma in situNon-billable
- D03.0 Melanoma in situ of lip
- D03.1 Melanoma in situ of eyelid, including canthusNon-billable
- D03.10 Melanoma in situ of unspecified eyelid, including canthus
- D03.11 Melanoma in situ of right eyelid, including canthusNon-billable
- 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 canthusNon-billable
- 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 canalNon-billable
- 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 faceNon-billable
- 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 trunkNon-billable
- 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 shoulderNon-billable
- 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 hipNon-billable
- 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
About the D03 Code Range
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.
Questions About This Page
How many billable codes are in the D03 range?
Of the 32 codes in this range, 23 are billable and valid for claim submission from October 1, 2025 through September 30, 2026. Category header codes group them but cannot be reported on claims.
What does the D03 range classify?
The range classifies melanoma in situ. Each code links to its own reference page with billing status, MS-DRG grouping, coding notes, and clinical information.
Related References
Source: CMS FY 2026 ICD-10-CM Tabular List and order file, effective October 1, 2025 through September 30, 2026.
