ICD-10 Code D03.60 – Melanoma in situ of unspecified upper limb, including shoulder (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code D03.60 – Melanoma in situ of unspecified upper limb, including shoulder
What it is
This code identifies melanoma in situ located on an unspecified upper limb, including the shoulder. The lesion is confined to the epidermis and has not invaded deeper tissue.
Clinical signs
Clinical features vary; refer to documentation. You may see a changing pigmented lesion with asymmetry, irregular borders, color variation, or enlargement on the arm or shoulder.
When to use this code
Use D03.60 when the provider documents melanoma in situ on an upper limb or shoulder but does not specify the exact site. It also fits pathology-confirmed in situ disease without invasion. If the laterality or exact subsite is documented, check whether a more specific code applies.
Do not use for
Do not use this code for invasive melanoma, which requires a different diagnosis code. Do not use it when the site is documented as a more specific upper limb location.
Coding tip
Verify both the in situ diagnosis and the anatomic site in the pathology or provider note before assigning D03.60.