2026 ICD-10-CM Diagnosis Code C57.9Malignant neoplasm of female genital organ, unspecified
ICD-10-CM Codes›C00–D49›C51-C58›C57
- Billable — Valid for Submission
- Chronic Condition
C57.9 is a billable ICD-10-CM diagnosis code for malignant neoplasm of female genital organ, unspecified. 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. Coders also document this condition as carcinoma of genital organ. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Female reproductive system cancers - all other types.
Code Identity
Code Classification
Approximate SynonymsGuidance
Alternate terms and clinical phrases that map to this code.
- Carcinoma of genital organ
- Carcinoma of genitourinary organ
- Malignant neoplasm of female genital organ
- Malignant neoplasm of genital structure
- Malignant neoplasm of genitourinary organ
- Primary carcinoma of genital organ
- Primary carcinoma of genitourinary organ
- Primary malignant neoplasm of female genital organ
Tabular List NotesGuidance
Coding notes and annotation back-references applicable to this code.
Inclusion Terms
- Malignant neoplasm of female genitourinary tract NOS
These terms are the conditions for which that code is to be used. The terms may be synonyms of the code title, or, in the case of "other specified" codes, the terms are a list of the various conditions assigned to that code. The inclusion terms are not necessarily exhaustive. Additional terms found only in the Alphabetic Index may also be assigned to a code.
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. |
|---|---|---|---|---|---|---|
| genital organ or tract | C57.9 | C79.82 | D07.30 | D28.9 | D39.9 | D49.59 |
| genital organ or tract › female NEC | C57.9 | C79.82 | D07.30 | D28.9 | D39.9 | D49.59 |
| genitourinary tract | C57.9 | C79.82 | D07.30 | D28.9 | D39.9 | D49.59 |
| genitourinary tract › female | C57.9 | C79.82 | D07.30 | D28.9 | D39.9 | D49.59 |
| septum › urethrovaginal | C57.9 | C79.82 | D07.30 | D28.9 | D39.9 | D49.59 |
| septum › vesicovaginal | C57.9 | C79.82 | D07.30 | D28.9 | D39.9 | D49.59 |
| urethrovaginal (septum) | C57.9 | C79.82 | D07.30 | D28.9 | D39.8 | D49.59 |
| vaginovesical | C57.9 | C79.82 | D07.30 | D28.9 | D39.9 | D49.59 |
| vaginovesical › septum | C57.9 | C79.82 | D07.30 | D28.9 | D39.9 | D49.59 |
| vesicocervical tissue | C57.9 | C79.82 | D07.30 | D28.9 | D39.9 | D49.59 |
| vesicovaginal | C57.9 | C79.82 | D07.30 | D28.9 | D39.9 | D49.59 |
| vesicovaginal › septum | C57.9 | C79.82 | D07.30 | D28.9 | D39.8 | 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?
Read the full article at MedlinePlus
Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.
Convert C57.9 to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About C57.9Overview
Is C57.9 a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report malignant neoplasm of female genital organ, unspecified on HIPAA-covered claims from October 1, 2025 through September 30, 2026.
What MS-DRG does C57.9 group to?
When malignant neoplasm of female genital organ, unspecified 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 C57.9?
Under the General Equivalence Mappings, malignant neoplasm of female genital organ, unspecified converts to ICD-9-CM 184.9 (mal neo female genit NOS). 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.
