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v1.0.0
ICD-10 Guide
ICD-10 CodesC82.9

C82.9

Billable

Follicular lymphoma, unspecified

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

Code Description

ICD-10 C82.9 is a billable code used to indicate a diagnosis of follicular lymphoma, unspecified.

Key Diagnostic Point:

Follicular lymphoma is a type of non-Hodgkin lymphoma that arises from B-lymphocytes, characterized by the proliferation of follicle center (germinal center) cells. It is typically indolent, meaning it progresses slowly, and is often diagnosed in advanced stages. The unspecified designation indicates that there is no further detail provided regarding the specific characteristics or subtype of the lymphoma. Patients may present with lymphadenopathy, splenomegaly, or asymptomatic disease. B-symptoms, which include fever, night sweats, and weight loss, may also be present, indicating a more aggressive disease course. Staging of follicular lymphoma is crucial for determining prognosis and treatment options, typically following the Ann Arbor staging system. Treatment may include watchful waiting for asymptomatic patients, chemotherapy, immunotherapy, or targeted therapies, depending on the stage and symptoms. The prognosis varies significantly based on the stage at diagnosis and the presence of B-symptoms, with early-stage disease generally having a better outcome than advanced-stage disease.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Variability in clinical presentation and symptoms
  • Need for precise staging and documentation
  • Differentiation from other types of lymphomas
  • Potential for transformation to aggressive lymphoma

Audit Risk Factors

  • Inadequate documentation of staging
  • Failure to note B-symptoms
  • Misclassification of lymphoma subtype
  • Lack of treatment documentation

Specialty Focus

Medical Specialties

Hematology/Oncology

Documentation Requirements

Detailed clinical notes including staging, treatment plans, and follow-up assessments.

Common Clinical Scenarios

Diagnosis of follicular lymphoma, management of treatment side effects, and monitoring for disease progression.

Billing Considerations

Accurate documentation of B-symptoms and treatment response is critical for coding and billing.

Pathology

Documentation Requirements

Histopathological reports confirming the diagnosis and subtype of lymphoma.

Common Clinical Scenarios

Biopsy interpretation and staging of lymphomas.

Billing Considerations

Pathology reports must clearly indicate the type of lymphoma to support accurate coding.

Coding Guidelines

Inclusion Criteria

Use C82.9 When
  • Follow the official ICD
  • CM coding guidelines, ensuring accurate documentation of the diagnosis, staging, and any associated symptoms
  • Include details about treatment plans and responses to therapy

Exclusion Criteria

Do NOT use C82.9 When
No specific exclusions found.

Related ICD-10 Codes

Related CPT Codes

96413CPT Code

Chemotherapy administration, intravenous

Clinical Scenario

Used for patients receiving chemotherapy for follicular lymphoma.

Documentation Requirements

Document the specific chemotherapy regimen and patient response.

Specialty Considerations

Oncology specialists must ensure accurate coding of chemotherapy administration.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for more specific coding of lymphomas, improving the accuracy of data collection and reimbursement processes. C82.9 provides a broad category for follicular lymphoma, but coders must ensure they capture the necessary details for appropriate billing.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of lymphomas, improving the accuracy of data collection and reimbursement processes. C82.9 provides a broad category for follicular lymphoma, but coders must ensure they capture the necessary details for appropriate billing.

Reimbursement & Billing Impact

reimbursement processes. C82.9 provides a broad category for follicular lymphoma, but coders must ensure they capture the necessary details for appropriate billing.

Resources

Clinical References

  • •
    American Cancer Society - Lymphoma

Coding & Billing References

  • •
    American Cancer Society - Lymphoma

Frequently Asked Questions

What are the common symptoms of follicular lymphoma?

Common symptoms include painless swelling of lymph nodes, fever, night sweats, weight loss, and fatigue. Some patients may be asymptomatic.