2026 ICD-10-CM Diagnosis Code C53.1Malignant neoplasm of exocervix
ICD-10-CM Codes›C00–D49›C51-C58›C53
- Billable — Valid for Submission
- Chronic Condition
C53.1 is a billable ICD-10-CM diagnosis code for malignant neoplasm of exocervix. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 736 through 741, 754 through 756. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Female reproductive system cancers - cervix.
Code Identity
Code Classification
Approximate SynonymsGuidance
Alternate terms and clinical phrases that map to this code.
- Carcinoma of cervix
- Carcinoma of exocervix
- Malignant neoplasm of exocervix
- Neoplasm of exocervix
- Primary carcinoma of cervix
- Primary carcinoma of exocervix
- Primary malignant neoplasm of exocervix
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
Table of NeoplasmsClinical
Anatomical sites in the Table of Neoplasms that reference this code family.
| Site | Malig. Primary | Malig. Secondary | Ca in situ | Benign | Uncertain | Unspec. |
|---|---|---|---|---|---|---|
| cervix (cervical) (uteri) (uterus) › exocervix | C53.1 | C79.82 | D06.1 | D26.0 | D39.0 | D49.59 |
| cervix (cervical) (uteri) (uterus) › external os | C53.1 | C79.82 | D06.1 | D26.0 | D39.0 | D49.59 |
| exocervix | C53.1 | C79.82 | D06.1 | D26.0 | D39.0 | D49.59 |
| external › os, cervix uteri | C53.1 | C79.82 | D06.1 | D26.0 | D39.0 | D49.59 |
| os | C53.1 | C79.82 | D06.1 | D26.0 | D39.0 | D49.59 |
| os › external | C53.1 | C79.82 | D06.1 | D26.0 | D39.0 | D49.59 |
| uterus, uteri, uterine › exocervix | C53.1 | C79.82 | D06.1 | D26.0 | D39.0 | D49.59 |
| uterus, uteri, uterine › external os | C53.1 | C79.82 | D06.1 | D26.0 | D39.0 | D49.59 |
Patient EducationClinical
Cervical Cancer
Cervical cancer is cancer that starts in the cells of the cervix. The cervix is part of the female reproductive system. It is the lower, narrow end of the uterus (womb), which opens into the vagina (birth canal).
The full article covers:
- What is cervical cancer?
- What causes cervical cancer?
- Who is more likely to develop cervical cancer?
- What are the symptoms of cervical cancer?
- How is cervical cancer diagnosed?
- What are the treatments for cervical cancer?
- Can cervical cancer be prevented?
- What is Cervical Cancer?
Read the full article at MedlinePlus
Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.
Convert C53.1 to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About C53.1Overview
Is C53.1 (Malignant neoplasm of cervix uteri) a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report malignant neoplasm of exocervix on HIPAA-covered claims from October 1, 2025 through September 30, 2026.
What MS-DRG does C53.1 group to?
When malignant neoplasm of exocervix is the principal diagnosis on an inpatient stay, it groups to MS-DRG 736, 737, 738, 739, 740, 741, 754, 755, 756, with relative weights from 0.9605 to 3.5745 depending on complications. Higher weights mean higher Medicare reimbursement.
What is the ICD-9 equivalent of C53.1?
Under the General Equivalence Mappings, malignant neoplasm of exocervix converts to ICD-9-CM 180.1 (malig neo exocervix). The mapping is a direct match.
Footnotes
[1] Chronic - a chronic condition code indicates a condition lasting 12 months or longer and its effect on the patient based on one or both of the following criteria:
- The condition results in the need for ongoing intervention with medical products,treatment, services, and special equipment
- The condition places limitations on self-care, independent living, and social interactions.
