ICD-10 Code C54.9 – Malignant neoplasm of corpus uteri, unspecified (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code C54.9 – Malignant neoplasm of corpus uteri, unspecified
What it is
C54.9 identifies a malignant tumor of the uterine corpus when the exact subsite is not documented. Use it for cancer arising in the body of the uterus, not the cervix or other gynecologic sites.
Clinical signs
Clinical features vary; refer to documentation. Commonly, uterine corpus malignancy is associated with abnormal uterine bleeding, postmenopausal bleeding, pelvic pain, or an abnormal pelvic examination and imaging finding.
When to use this code
Use C54.9 when the provider documents a malignant neoplasm of the corpus uteri but does not specify the exact uterine subsite. It also fits when records confirm uterine body cancer and no more specific code is available. Check pathology, operative notes, and the final diagnosis for a clearer site.
Do not use for
Do not use this code for malignancy of the cervix, endometrium when a more specific code is documented, or benign uterine conditions. Check documentation if the site is uncertain.
Coding tip
Query for the exact uterine subsite before defaulting to C54.9.