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v1.0.0
ICD-10 Guide
ICD-10 CodesC81.9

C81.9

Billable

Hodgkin lymphoma, unspecified

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

Code Description

ICD-10 C81.9 is a billable code used to indicate a diagnosis of hodgkin lymphoma, unspecified.

Key Diagnostic Point:

Hodgkin lymphoma, also known as Hodgkin's disease, is a type of lymphatic cancer that originates in the lymphatic system, which is part of the immune system. It is characterized by the presence of Reed-Sternberg cells, which are large, abnormal lymphocytes. The unspecified designation indicates that the specific subtype of Hodgkin lymphoma has not been determined. Common symptoms include swollen lymph nodes, fever, night sweats, weight loss, and fatigue, collectively referred to as B-symptoms. Staging of Hodgkin lymphoma is crucial for determining treatment and prognosis, typically classified as Stage I through IV based on the extent of disease spread. Treatment protocols often involve chemotherapy, radiation therapy, or a combination of both, depending on the stage and individual patient factors. Early diagnosis and appropriate staging are essential for effective management and improved outcomes.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Variability in clinical presentation and symptoms
  • Need for accurate staging and classification
  • Differentiation from non-Hodgkin lymphomas
  • Potential for multiple treatment modalities

Audit Risk Factors

  • Inadequate documentation of staging
  • Failure to document B-symptoms
  • Misclassification of lymphoma subtype
  • Inconsistent treatment documentation

Specialty Focus

Medical Specialties

Hematology/Oncology

Documentation Requirements

Detailed clinical notes on symptoms, staging, treatment plans, and follow-up care.

Common Clinical Scenarios

Diagnosis and management of Hodgkin lymphoma, staging evaluations, and treatment response assessments.

Billing Considerations

Ensure accurate documentation of B-symptoms and treatment regimens to support coding.

Radiology

Documentation Requirements

Imaging reports that detail lymph node involvement and staging.

Common Clinical Scenarios

CT or PET scans for staging and monitoring treatment response.

Billing Considerations

Radiology reports should clearly indicate findings related to lymphoma staging.

Coding Guidelines

Inclusion Criteria

Use C81.9 When
  • Follow the official ICD
  • CM coding guidelines, ensuring accurate documentation of the diagnosis, staging, and treatment
  • Include any relevant B
  • symptoms and treatment responses in the medical record

Exclusion Criteria

Do NOT use C81.9 When
No specific exclusions found.

Related ICD-10 Codes

Related CPT Codes

96413CPT Code

Chemotherapy administration, intravenous

Clinical Scenario

Used for administering chemotherapy to patients diagnosed with Hodgkin lymphoma.

Documentation Requirements

Document the specific chemotherapy agents used and the patient's response.

Specialty Considerations

Oncology specialists should ensure that all treatment details are accurately recorded.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for more specific coding of Hodgkin lymphoma, improving data accuracy and treatment tracking. C81.9 serves as a catch-all for unspecified cases, but coders must strive for specificity when possible.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of Hodgkin lymphoma, improving data accuracy and treatment tracking. C81.9 serves as a catch-all for unspecified cases, but coders must strive for specificity when possible.

Reimbursement & Billing Impact

The transition to ICD-10 has allowed for more specific coding of Hodgkin lymphoma, improving data accuracy and treatment tracking. C81.9 serves as a catch-all for unspecified cases, but coders must strive for specificity when possible.

Resources

Clinical References

  • •
    American Cancer Society - Hodgkin Lymphoma

Coding & Billing References

  • •
    American Cancer Society - Hodgkin Lymphoma

Frequently Asked Questions

What are the common B-symptoms associated with Hodgkin lymphoma?

Common B-symptoms include unexplained fever, night sweats, and significant weight loss. These symptoms can impact treatment decisions and prognosis.