ICD-10 Code C41.3 – Malignant neoplasm of ribs, sternum and clavicle (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code C41.3 – Malignant neoplasm of ribs, sternum and clavicle
What it is
C41.3 identifies a malignant bone tumor arising in the ribs, sternum, or clavicle. Use it when the documentation states a primary cancer of one of these bones.
Clinical signs
Clinical features vary; refer to documentation. Commonly, patients may have localized pain, swelling, or a palpable mass, and imaging or biopsy confirms a malignant bone neoplasm.
When to use this code
Use C41.3 when the provider documents a primary malignant neoplasm involving the ribs, sternum, or clavicle. It also fits confirmed bone cancer in these sites when the anatomical location is clearly stated. If the record only says “bone cancer” without site, check documentation.
Do not use for
Do not use this code for metastatic disease to these bones or for benign bone tumors. If the lesion is not clearly documented as malignant and primary in the ribs, sternum, or clavicle, verify the record.
Coding tip
Always code the exact bone site documented; if the location is ambiguous, query the provider before assigning C41.3.