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ICD-10 Guide
ICD-10 CodesC56.2

C56.2

Billable

Malignant neoplasm of left ovary

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

Code Description

ICD-10 C56.2 is a billable code used to indicate a diagnosis of malignant neoplasm of left ovary.

Key Diagnostic Point:

C56.2 refers to a malignant neoplasm specifically located in the left ovary. This condition is characterized by the uncontrolled growth of abnormal cells in the ovarian tissue, which can lead to the formation of tumors. Ovarian cancer is often asymptomatic in its early stages, making early detection challenging. Common symptoms may include abdominal bloating, pelvic pain, and changes in urinary habits. The diagnosis is typically confirmed through imaging studies, such as ultrasound or CT scans, and histopathological examination of biopsy samples. Staging of ovarian cancer is crucial for determining the extent of disease and guiding treatment options. The FIGO staging system is commonly used, ranging from Stage I (localized) to Stage IV (distant metastasis). CA-125 is a tumor marker frequently utilized in monitoring treatment response and disease recurrence. Surgical approaches, including oophorectomy (removal of the ovary) and debulking surgery, are often employed as part of the treatment regimen, sometimes in conjunction with chemotherapy. Accurate coding of C56.2 is essential for appropriate treatment planning and reimbursement.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Need for precise staging information
  • Variability in clinical presentation
  • Requirement for comprehensive documentation of symptoms and treatment
  • Potential for multiple concurrent diagnoses

Audit Risk Factors

  • Inadequate documentation of staging
  • Failure to include CA-125 levels in records
  • Lack of clarity in surgical notes
  • Misclassification of tumor type or grade

Specialty Focus

Medical Specialties

Gynecologic Oncology

Documentation Requirements

Detailed surgical reports, pathology results, imaging studies, and CA-125 levels.

Common Clinical Scenarios

Diagnosis and treatment planning for ovarian cancer, management of chemotherapy side effects, and follow-up care.

Billing Considerations

Ensure accurate staging and documentation of treatment response, including any recurrence.

Radiology

Documentation Requirements

Comprehensive imaging reports detailing findings related to ovarian masses.

Common Clinical Scenarios

Imaging for suspected ovarian tumors, follow-up imaging for treatment response.

Billing Considerations

Clear documentation of imaging techniques and findings to support diagnosis.

Coding Guidelines

Inclusion Criteria

Use C56.2 When
  • According to ICD
  • 10 coding guidelines, C56
  • 2 should be used when the diagnosis of malignant neoplasm of the left ovary is confirmed
  • It is essential to document the stage of cancer and any relevant treatment details

Exclusion Criteria

Do NOT use C56.2 When
  • Exclusion criteria include benign ovarian tumors or conditions unrelated to malignancy

Related ICD-10 Codes

Related CPT Codes

58150CPT Code

Total abdominal hysterectomy with bilateral salpingo-oophorectomy

Clinical Scenario

Performed for treatment of malignant neoplasm of the left ovary.

Documentation Requirements

Operative report detailing the procedure and findings.

Specialty Considerations

Ensure that the surgical approach and any complications are documented.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for more specific coding of ovarian cancer, improving the accuracy of data collection and reimbursement processes. C56.2 provides a clear distinction for malignant neoplasms of the left ovary, facilitating better tracking of treatment outcomes.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of ovarian cancer, improving the accuracy of data collection and reimbursement processes. C56.2 provides a clear distinction for malignant neoplasms of the left ovary, facilitating better tracking of treatment outcomes.

Reimbursement & Billing Impact

reimbursement processes. C56.2 provides a clear distinction for malignant neoplasms of the left ovary, facilitating better tracking of treatment outcomes.

Resources

Clinical References

  • •
    American Cancer Society - Ovarian Cancer

Coding & Billing References

  • •
    American Cancer Society - Ovarian Cancer

Frequently Asked Questions

What is the significance of CA-125 in ovarian cancer?

CA-125 is a tumor marker that can help in diagnosing ovarian cancer, monitoring treatment response, and detecting recurrence. Elevated levels may indicate the presence of malignancy, but they are not definitive on their own.