ICD-10 Code C76.40 – Malignant neoplasm of unspecified upper limb (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code C76.40 – Malignant neoplasm of unspecified upper limb
What it is
C76.40 identifies a malignant neoplasm in the upper limb when the exact site is not specified. Use it when the record confirms cancer in the arm or related upper limb tissue, but the documentation does not name a more precise location.
Clinical signs
Clinical features vary; refer to documentation. Commonly, records may note a mass, swelling, pain, or other findings consistent with a malignant tumor in the upper limb.
When to use this code
Use this code when the provider documents a malignant neoplasm of the upper limb but does not identify whether it is in the shoulder, arm, forearm, or hand. It is also appropriate when the site is described only as unspecified upper limb. If a more exact anatomic site is documented, code that site instead.
Do not use for
Do not use this code for benign tumors, metastatic disease to the upper limb, or lesions with a clearly documented specific site that has a more precise ICD-10 code. Check documentation.
Coding tip
Query for the exact anatomic location whenever the chart says only “upper limb” or “arm cancer.”