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ICD-10 Guide
ICD-10 CodesC79.70

C79.70

Billable

Secondary malignant neoplasm of unspecified adrenal gland

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

Code Description

ICD-10 C79.70 is a billable code used to indicate a diagnosis of secondary malignant neoplasm of unspecified adrenal gland.

Key Diagnostic Point:

C79.70 refers to the presence of secondary malignant neoplasms in the adrenal gland, indicating that the cancer has metastasized from another primary site, which is unspecified in this case. Metastatic disease to the adrenal glands is often a result of cancers originating from the lungs, breast, kidney, or melanoma. The adrenal glands, being highly vascularized, are common sites for metastasis. Symptoms may include abdominal pain, weight loss, and hormonal imbalances due to adrenal dysfunction. Staging of metastatic disease is crucial for treatment planning and prognosis, often utilizing imaging studies such as CT scans or MRIs to assess the extent of spread. Palliative care considerations are essential, focusing on symptom management and quality of life, especially in advanced stages where curative treatment may not be feasible. Accurate coding of C79.70 is vital for appropriate treatment planning, resource allocation, and reimbursement.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Determining the primary site of cancer can be challenging.
  • Need for comprehensive documentation of metastatic disease.
  • Variability in clinical presentation and symptoms.
  • Potential for multiple primary cancers complicating coding.

Audit Risk Factors

  • Inadequate documentation of the primary cancer site.
  • Failure to specify the laterality of adrenal involvement.
  • Misclassification of primary versus secondary neoplasms.
  • Lack of imaging or pathology reports to support the diagnosis.

Specialty Focus

Medical Specialties

Oncology

Documentation Requirements

Detailed history of the primary cancer, imaging results, and treatment plans.

Common Clinical Scenarios

Patients with known primary cancers presenting with adrenal masses.

Billing Considerations

Ensure clarity on the primary site and staging to avoid coding errors.

Endocrinology

Documentation Requirements

Hormonal assessment results and clinical symptoms related to adrenal function.

Common Clinical Scenarios

Patients with adrenal insufficiency or excess hormone production due to metastasis.

Billing Considerations

Document any hormonal assays performed to support the diagnosis.

Coding Guidelines

Inclusion Criteria

Use C79.70 When
  • According to ICD
  • 10 coding guidelines, C79
  • 70 should be used when the documentation specifies secondary malignancy in the adrenal gland without a specified primary site
  • Coders must ensure that the primary cancer is documented elsewhere in the medical record

Exclusion Criteria

Do NOT use C79.70 When
No specific exclusions found.

Related ICD-10 Codes

Related CPT Codes

74177CPT Code

CT scan abdomen and pelvis with contrast

Clinical Scenario

Used to evaluate adrenal masses in patients with known malignancies.

Documentation Requirements

Document indication for the scan and findings related to adrenal involvement.

Specialty Considerations

Oncology should ensure correlation with cancer history.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for more specific coding of metastatic diseases, improving the accuracy of cancer registries and treatment planning. C79.70 provides a clear indication of secondary malignancy, which is crucial for patient management and research.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of metastatic diseases, improving the accuracy of cancer registries and treatment planning. C79.70 provides a clear indication of secondary malignancy, which is crucial for patient management and research.

Reimbursement & Billing Impact

reimbursement.

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 coding C79.70?

Coding C79.70 is significant as it indicates the presence of metastatic disease in the adrenal gland, which impacts treatment decisions, prognosis, and reimbursement processes.