Malignant neoplasm of overlapping sites of cervix uteri

This code signifies a primary cancerous tumor that spans across two or more adjacent anatomical sub-sites within the cervix uteri, where the exact point of origin cannot be determined. It indicates that the malignancy has spread beyond a single, clearly defined cervical region but remains confined to the cervix.

Use this code when documentation explicitly states a malignant neoplasm involving overlapping sites of the cervix, such as extending from the endocervix to the exocervix, or involving both the squamocolumnar junction and an adjacent cervical area. This code is appropriate when the tumor's origin cannot be localized to a single C53.0-C53.1 subcategory.

• Do not use this code if the malignancy is clearly confined to a single anatomical sub-site of the cervix (e.g., endocervix or exocervix).
• Ensure documentation specifies "overlapping sites" or describes involvement of multiple contiguous cervical regions.
• Always sequence this code as the primary diagnosis when it represents the reason for the encounter, followed by any relevant secondary diagnoses.