ICD-10 Code C44.602 – Unspecified malignant neoplasm of skin of right upper limb, including shoulder (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code C44.602 – Unspecified malignant neoplasm of skin of right upper limb, including shoulder
What it is
This code identifies a malignant skin tumor on the right upper limb, including the shoulder, when the specific histology is not documented. Use it when the record confirms skin cancer but does not name the exact type.
Clinical signs
Clinical features vary; refer to documentation. Common findings may include a suspicious skin lesion, nonhealing ulcer, bleeding, crusting, or an enlarging mass on the right arm or shoulder.
When to use this code
Use this code when the provider documents a malignant neoplasm of skin in the right upper limb or shoulder and does not specify the cell type. It also fits when pathology or the final diagnosis confirms skin cancer, but the exact type remains unspecified. Check documentation if the lesion site is unclear or if laterality is not confirmed.
Do not use for
Do not use this code for benign skin lesions, carcinoma in situ, or uncertain neoplasms. If the cancer type or site is documented more specifically, code the more precise diagnosis instead.
Coding tip
Verify both laterality and anatomic site before assigning C44.602.