ICD-10 Code C53.8 – Malignant neoplasm of overlapping sites of cervix uteri (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code C53.8 – Malignant neoplasm of overlapping sites of cervix uteri
What it is
This code identifies a malignant cervical tumor that involves overlapping sites of the cervix uteri, meaning the cancer spans more than one adjacent cervical area. Use it when the record documents overlap rather than a single specified cervical subsite.
Clinical signs
Clinical features vary; refer to documentation. Common findings in cervical cancer may include abnormal vaginal bleeding, pelvic pain, or abnormal pelvic examination findings, but the diagnosis should be supported by pathology or clear specialist documentation.
When to use this code
Use C53.8 when the provider documents a malignant neoplasm of the cervix involving overlapping sites, or when the lesion cannot be assigned to a single cervical subsite. It is appropriate for confirmed primary cervical cancer, not for suspected disease. If the site description is unclear, check documentation before coding.
Do not use for
Do not use this code for benign cervical lesions, carcinoma in situ, or malignant neoplasms limited to a single, separately documented cervical site. Check documentation if the record only says “cervical cancer” without overlap detail.
Coding tip
Code the most specific cervical site documented; use C53.8 only when overlap across cervix sites is explicitly stated or clearly supported.