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v1.0.0
ICD-10 Guide
ICD-10 CodesC77.3

C77.3

Billable

Secondary and unspecified malignant neoplasm of axilla and upper limb lymph nodes

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

Code Description

ICD-10 C77.3 is a billable code used to indicate a diagnosis of secondary and unspecified malignant neoplasm of axilla and upper limb lymph nodes.

Key Diagnostic Point:

C77.3 refers to secondary malignant neoplasms that have metastasized to the axillary and upper limb lymph nodes. This condition typically arises from a primary cancer located elsewhere in the body, such as breast, lung, or melanoma. The axilla and upper limb lymph nodes serve as critical sites for lymphatic drainage, making them common locations for metastatic spread. Patients may present with swollen lymph nodes, pain, or other systemic symptoms related to the underlying malignancy. Accurate coding is essential for appropriate treatment planning, staging, and palliative care considerations. In cases where the primary tumor is unknown, thorough diagnostic workup is necessary to identify potential sources of metastasis. Staging of the disease is crucial for determining prognosis and treatment options, and palliative care may be indicated to manage symptoms and improve quality of life for patients with advanced disease.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Determining the primary site of cancer when it is unknown.
  • Differentiating between primary and secondary lymph node involvement.
  • Staging considerations that may vary based on the primary malignancy.
  • Documentation of metastatic disease and its implications for treatment.

Audit Risk Factors

  • Inadequate documentation of the primary cancer site.
  • Failure to document staging information.
  • Misclassification of lymph node involvement as primary rather than secondary.
  • Lack of clarity in palliative care documentation.

Specialty Focus

Medical Specialties

Oncology

Documentation Requirements

Detailed history of the primary malignancy, staging information, and treatment plans.

Common Clinical Scenarios

Patients with known primary cancers presenting with axillary lymphadenopathy.

Billing Considerations

Ensure accurate documentation of metastasis and staging to support treatment decisions.

Palliative Care

Documentation Requirements

Comprehensive symptom management plans and goals of care discussions.

Common Clinical Scenarios

Patients with advanced cancer requiring symptom relief and quality of life improvements.

Billing Considerations

Documentation should reflect the focus on palliative care interventions and patient preferences.

Coding Guidelines

Inclusion Criteria

Use C77.3 When
  • Follow the official ICD
  • CM coding guidelines, ensuring accurate documentation of the primary malignancy and staging
  • Include any relevant clinical findings that support the diagnosis of secondary malignant neoplasm

Exclusion Criteria

Do NOT use C77.3 When
No specific exclusions found.

Related ICD-10 Codes

Related CPT Codes

38500CPT Code

Biopsy of lymph nodes

Clinical Scenario

Used when lymph nodes are biopsied to confirm metastatic disease.

Documentation Requirements

Document the indication for biopsy and results.

Specialty Considerations

Oncology specialists should ensure clear documentation of the biopsy findings.

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 data collection and reimbursement processes. C77.3 provides a clear distinction for secondary malignancies, which aids in treatment planning 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 data collection and reimbursement processes. C77.3 provides a clear distinction for secondary malignancies, which aids in treatment planning and research.

Reimbursement & Billing Impact

reimbursement processes. C77.3 provides a clear distinction for secondary malignancies, which aids in treatment planning and research.

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 C77.3 accurately?

Accurate coding of C77.3 is crucial for appropriate treatment planning, staging, and reimbursement. It ensures that patients receive the necessary care for metastatic disease and helps in tracking cancer epidemiology.