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v1.0.0
ICD-10 Guide
ICD-10 CodesChapter 2: NeoplasmsC57

C57

Billable

Malignant neoplasm of other and unspecified female genital organs

Chapter 2:Neoplasms

BILLABLE STATUSYes
IMPLEMENTATION DATEOctober 1, 2015
LAST UPDATED09/05/2025

Code Description

ICD-10 C57 is a billable code used to indicate a diagnosis of malignant neoplasm of other and unspecified female genital organs.

Key Diagnostic Point:

C57 encompasses malignant neoplasms that arise from various female genital organs not classified elsewhere in the ICD-10 system. This includes tumors originating from the vulva, vagina, cervix, uterus, and ovaries, as well as other unspecified sites within the female reproductive system. These malignancies can present with a range of symptoms, including abnormal vaginal bleeding, pelvic pain, and changes in menstrual cycles. Diagnosis typically involves imaging studies, biopsies, and tumor markers such as CA-125, which can aid in monitoring treatment response and disease progression. Staging of gynecologic cancers is crucial for determining prognosis and treatment options, often utilizing the FIGO (International Federation of Gynecology and Obstetrics) staging system. Surgical approaches may include hysterectomy, salpingo-oophorectomy, and radical excision, depending on the tumor's location and extent. Multidisciplinary management is essential, involving oncologists, surgeons, and radiologists to optimize patient outcomes.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Variety of potential primary sites leading to confusion in coding
  • Need for precise staging information for accurate coding
  • Variability in documentation quality across specialties
  • Potential for overlapping symptoms with benign conditions

Audit Risk Factors

  • Inadequate documentation of tumor site and type
  • Failure to document staging information
  • Misinterpretation of CA-125 levels and their relevance
  • Lack of clarity in surgical procedure documentation

Specialty Focus

Medical Specialties

Gynecologic Oncology

Documentation Requirements

Detailed pathology reports, imaging studies, and surgical notes are essential for accurate coding.

Common Clinical Scenarios

Diagnosis and treatment of ovarian cancer, cervical cancer staging, and management of recurrent gynecologic malignancies.

Billing Considerations

Ensure all relevant tumor markers and staging information are documented to support coding.

Radiology

Documentation Requirements

Clear imaging reports indicating tumor location, size, and any metastasis.

Common Clinical Scenarios

Imaging for staging gynecologic cancers and follow-up assessments post-treatment.

Billing Considerations

Radiologists should provide comprehensive reports that correlate with clinical findings.

Coding Guidelines

Inclusion Criteria

Use C57 When
  • Follow the official ICD
  • CM coding guidelines, ensuring accurate documentation of the primary site, histology, and staging
  • Include any relevant tumor markers and treatment details to support the diagnosis

Exclusion Criteria

Do NOT use C57 When
No specific exclusions found.

Related CPT Codes

58150CPT Code

Total abdominal hysterectomy

Clinical Scenario

Used in the treatment of uterine malignancies.

Documentation Requirements

Operative report detailing the procedure and findings.

Specialty Considerations

Gynecologic oncologists should ensure accurate coding of the procedure performed.

58661CPT Code

Laparoscopic oophorectomy

Clinical Scenario

Performed for ovarian cancer treatment.

Documentation Requirements

Surgical notes and pathology reports are essential.

Specialty Considerations

Documentation must clearly indicate the reason for the procedure.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for more specific coding of gynecologic malignancies, improving data accuracy and facilitating better patient management. C57 provides a broader classification for unspecified sites, which can help in capturing data for research and treatment outcomes.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of gynecologic malignancies, improving data accuracy and facilitating better patient management. C57 provides a broader classification for unspecified sites, which can help in capturing data for research and treatment outcomes.

Reimbursement & Billing Impact

The transition to ICD-10 has allowed for more specific coding of gynecologic malignancies, improving data accuracy and facilitating better patient management. C57 provides a broader classification for unspecified sites, which can help in capturing data for research and treatment outcomes.

Resources

Clinical References

  • •
    ICD-10-CM Official Guidelines for Coding and Reporting

Coding & Billing References

  • •
    ICD-10-CM Official Guidelines for Coding and Reporting

Frequently Asked Questions

What is the significance of CA-125 in coding C57?

CA-125 is a tumor marker often used in the diagnosis and monitoring of ovarian cancer. Its levels can influence treatment decisions and should be documented to support the diagnosis coded under C57.