2027 ICD-10-CM Diagnosis Code C57Malignant neoplasm of other and unspecified female genital organs

ICD-10-CM Codes›C00–D49›C51-C58›C57

ICD-10-CM C57
CMSSource: CMS FY 2027 ICD-10-CM dataset · Effective Oct 1, 2026 – Sep 30, 2027

C57 is a non-billable ICD-10-CM category code for malignant neoplasm of other and unspecified female genital organs, so it cannot be submitted on claims. Use a more specific code from this category instead, such as C57.00, C57.01, C57.02, and C57.10.

Code Identity

ICD-10-CM Code
C57
Billable Status
No — Non-Billable Category
Code Describes
Malignant neoplasm of other and unspecified female genital organs
Short Description
Malignant neoplasm of other and unsp female genital organs
Chapter
C51-C58
Malignant neoplasms of female genital organs

Code Classification

ChapterC00–D49Neoplasms
SectionC51-C58Malignant neoplasms of female genital organs
CategoryC57Malignant neoplasm of other and unspecified female genital organs
This CodeC57Malignant neoplasm of other and unspecified female genital organs

Specific Coding for Malignant neoplasm of other and unsp female genital organsOverview

Non-specific codes like C57 require more characters. Use one of these billable codes instead:

  • C57.0 for Malignant neoplasm of fallopian tube

  • Use C57.00 for Malignant neoplasm of unspecified fallopian tube

  • Use C57.01 for Malignant neoplasm of right fallopian tube

  • Use C57.02 for Malignant neoplasm of left fallopian tube

  • C57.1 for Malignant neoplasm of broad ligament

  • Use C57.10 for Malignant neoplasm of unspecified broad ligament

  • Use C57.11 for Malignant neoplasm of right broad ligament

  • Use C57.12 for Malignant neoplasm of left broad ligament

  • C57.2 for Malignant neoplasm of round ligament

  • Use C57.20 for Malignant neoplasm of unspecified round ligament

  • Use C57.21 for Malignant neoplasm of right round ligament

  • Use C57.22 for Malignant neoplasm of left round ligament

  • Use C57.3 for Malignant neoplasm of parametrium

  • Use C57.4 for Malignant neoplasm of uterine adnexa, unspecified

  • Use C57.7 for Malignant neoplasm of other specified female genital organs

  • Use C57.8 for Malignant neoplasm of overlapping sites of female genital organs

  • Use C57.9 for Malignant neoplasm of female genital organ, unspecified

Instructional NotesGuidance

Instructions from the official ICD-10-CM Tabular List that apply to C57: its own notes plus those printed at block C51-C58 and Chapter 2. A note printed at a category, block or chapter applies to every code under it.

Includes

Further defines, or gives examples of, the content of the category.

From Block C51-C58 Malignant neoplasms of female genital organs applies to 36 codes
  • malignant neoplasm of skin of female genital organs

Notes

General instructions on how these codes are used.

From Chapter 2 (C00-D49) Neoplasms applies to 1,730 codes
  • Functional activity
  • All neoplasms are classified in this chapter, whether they are functionally active or not. An additional code from Chapter 4 may be used, to identify functional activity associated with any neoplasm.
  • Morphology [Histology]
  • Chapter 2 classifies neoplasms primarily by site (topography), with broad groupings for behavior, malignant, in situ, benign, etc. The Table of Neoplasms should be used to identify the correct topography code. In a few cases, such as for malignant melanoma and certain neuroendocrine tumors, the morphology (histologic type) is included in the category and codes.
  • Primary malignant neoplasms overlapping site boundaries
  • A primary malignant neoplasm that overlaps two or more contiguous (next to each other) sites should be classified to the subcategory/code .8 ('overlapping lesion'), unless the combination is specifically indexed elsewhere. For multiple neoplasms of the same site that are not contiguous, such as tumors in different quadrants of the same breast, codes for each site should be assigned.
  • Malignant neoplasm of ectopic tissue
  • Malignant neoplasms of ectopic tissue are to be coded to the site mentioned, e.g., ectopic pancreatic malignant neoplasms are coded to pancreas, unspecified (C25.9).

Source: CMS ICD-10-CM Tabular List. How to read instructional notes.

Referenced in Other NotesGuidance

Instructional notes printed at other codes that name C57, its category, or a range that includes it.

Applicable To 2

These notes mention C57.

  • Z80.4 Family history of malignant neoplasm of genital organs
    Conditions classifiable to C51-C63 names C51-C63, which includes this code
  • Z85.4 Personal history of malignant neoplasm of genital organs
    Conditions classifiable to C51-C63 names C51-C63, which includes this code

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?
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  • Who is more likely to develop cervical cancer?
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Read the full article at MedlinePlus

Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2026No changes
FY 2027CurrentCurrent code set, no changesEffective October 1, 2026 through September 30, 2027.

Questions About C57Overview

What is the ICD-10 code for malignant neoplasm of other and unspecified female genital organs?

C57 is the ICD-10-CM category for malignant neoplasm of other and unspecified female genital organs, but it is a non-billable header: claims need a more specific code from this category, listed on this page.

Is C57 a billable code?

No. This is a category header that groups the codes for malignant neoplasm of other and unspecified female genital organs, and headers cannot be submitted on claims. Claims for malignant neoplasm of other and unspecified female genital organs need a more specific code from this category, such as C57.00, C57.01, and C57.02.