ICD-10 Code C57.11 – Malignant neoplasm of right broad ligament (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code C57.11 – Malignant neoplasm of right broad ligament
What it is
C57.11 identifies a malignant tumor arising in the right broad ligament, a supporting structure of the uterus. Use it when documentation specifically states a primary cancer of that right-sided pelvic ligament.
Clinical signs
Clinical features vary; refer to documentation. Patients may present with a pelvic mass, pain, pressure, or findings on imaging or surgery that confirm malignancy in the right broad ligament.
When to use this code
Use C57.11 when the provider documents primary malignant neoplasm of the right broad ligament, or when pathology clearly localizes the cancer to that site. Code it only if the right-sided origin is explicit in the record. If laterality or primary site is unclear, check documentation.
Do not use for
Do not use this code for benign broad ligament masses, metastatic disease to the broad ligament, or cancers documented only as uterine, ovarian, or unspecified pelvic malignancy. Check documentation when the site is not clearly stated.
Coding tip
Verify both laterality and primary site before assigning C57.11.