ICD-10 Code C53.9 – Malignant neoplasm of cervix uteri, unspecified (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code C53.9 – Malignant neoplasm of cervix uteri, unspecified
What it is
C53.9 identifies a malignant tumor of the cervix uteri when the site is cervical cancer but no further anatomic detail is documented. Use it when the record confirms cervical malignancy and does not specify a subsite.
Clinical signs
Clinical features vary; refer to documentation. Commonly, records note abnormal vaginal bleeding, postcoital bleeding, pelvic pain, or an abnormal cervical exam, but the diagnosis should be supported by pathology or specialist evaluation.
When to use this code
Use this code when the provider documents cervical cancer without specifying endocervix, exocervix, or overlapping sites. It is also appropriate when the pathology report or assessment confirms malignancy, but the exact cervical location is not stated. If more detail appears later, code to the most specific documented site.
Do not use for
Do not use C53.9 for cervical dysplasia, carcinoma in situ, or benign cervical lesions. If the chart identifies a specific cervical subsite, choose the more specific code instead.
Coding tip
Check the pathology, operative note, and final assessment before assigning an unspecified code.