ICD-10 Code C44.699 – Other specified malignant neoplasm of skin of left upper limb, including shoulder (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code C44.699 – Other specified malignant neoplasm of skin of left upper limb, including shoulder
What it is
This code identifies a malignant skin tumor on the left upper limb, including the shoulder, when the record specifies a skin cancer that does not fit a more specific ICD-10 option. Use the documented site and pathology wording.
Clinical signs
Clinical features vary; refer to documentation. You may see a suspicious skin lesion on the left arm or shoulder with biopsy or pathology confirming malignancy.
When to use this code
Use C44.699 when the provider documents a malignant neoplasm of skin on the left upper limb, including shoulder, and the diagnosis is not described by a more specific skin cancer code. It is appropriate for confirmed malignancy, not for a rule-out diagnosis. Check whether the note specifies a different anatomic site or histology.
Do not use for
Do not use this code for benign skin lesions, non-melanoma skin conditions, or uncertain diagnoses. If the cancer site is elsewhere or the documentation is more specific, choose the matching code.
Coding tip
Match the exact laterality and site in the pathology or operative note before assigning C44.699.