C82.99
BillableFollicular lymphoma, unspecified, extranodal and solid organ sites
HCC Category Mapping
V28HCC 21 — Breast, Prostate, Colorectal and Other Cancers and Tumors
0.545V24HCC 10 — Lymphoma and Other Cancers
0.675ESRDHCC 10 — Lymphoma and Other Cancers
0.000RxHCCHCC 21 — Hodgkin Lymphoma and Other Cancers
0.000What This Code Means
A type of cancer of the lymph system (follicular lymphoma) affecting organs outside the lymph nodes or solid organs without specification of grade or stage.
Coding Tips
Clinical Significance
Follicular lymphoma, unspecified type, involving extranodal and solid organ sites represents stage IV follicular lymphoma with organ involvement when the specific grade is not determined. Extranodal spread indicates aggressive disease behavior that typically requires systemic treatment. The combination of unspecified grade with extranodal spread should prompt urgent pathology review for grading, as treatment urgency may be higher for high-grade variants.
Documentation Requirements
- ✓Pathology confirming follicular lymphoma at the extranodal site
- ✓Identification of specific organs involved
- ✓Biopsy confirmation of extranodal disease
- ✓Query for grade determination from pathology
- ✓Stage IV staging documentation
- ✓Assessment of organ function at involved sites
Commonly Confused Codes
C82.98 — Follicular lymphoma, unspecified, lymph nodes of multiple sites: Nodal multi-site vs. extranodal involvementC82.89 — Other types of follicular lymphoma, extranodal and solid organ sites: Use when a specific variant is identifiedC82.59 — Diffuse follicle center lymphoma, extranodal and solid organ sites: Use when diffuse type is confirmed
Code Hierarchy
└C82Follicular lymphoma└C82.9Follicular lymphoma, unspecified└C82.99Follicular lymphoma, unspecified, extranodal and solid organ sites
└C82.99Follicular lymphoma, unspecified, extranodal and solid organ sites