C82.46
BillableFollicular lymphoma grade IIIb, intrapelvic lymph nodes
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) in an advanced stage, located in the lymph nodes within the pelvis.
Coding Tips
- •Intrapelvic involvement may require imaging confirmation; ensure documentation supports this specific site
- •Grade IIIb follicular lymphoma has different treatment implications than lower grades
Clinical Significance
Follicular lymphoma grade IIIb in intrapelvic lymph nodes represents the most aggressive follicular subtype in deep pelvic nodes. This combination typically requires curative-intent chemoimmunotherapy and may present with genitourinary or bowel symptoms. Grade IIIb intrapelvic disease requires expert pathology distinction from DLBCL and careful anatomic coding to distinguish from inguinal involvement.
Documentation Requirements
- ✓Pathology confirming grade IIIb pattern (centroblast sheets only)
- ✓CT/PET imaging documenting intrapelvic lymph node involvement
- ✓Assessment for compressive symptoms (urinary, bowel)
- ✓Expert hematopathology review to differentiate from DLBCL
- ✓Curative-intent treatment plan
Commonly Confused Codes
Code Hierarchy
└C82Follicular lymphoma└C82.4Follicular lymphoma grade IIIb└C82.46Follicular lymphoma grade IIIb, intrapelvic lymph nodes
└C82.46Follicular lymphoma grade IIIb, intrapelvic lymph nodes