C82.25
BillableFollicular lymphoma grade III, unspecified, lymph nodes of inguinal region and lower limb
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 slow-growing blood cancer (follicular lymphoma) that is grade III and located in the lymph nodes of the groin and lower leg area.
Coding Tips
- •Inguinal lymph nodes are the primary nodes in this region; document if unilateral or bilateral
- •Clarify whether involvement extends to femoral or popliteal nodes in the lower limb
Clinical Significance
Follicular lymphoma grade III unspecified in inguinal and lower limb lymph nodes represents high-grade disease in the groin and lower extremity region. Grade III inguinal disease may grow more rapidly than indolent grades and present with significant lymphadenopathy causing lower extremity lymphedema. Active treatment is typically indicated rather than watchful waiting.
Documentation Requirements
- ✓Pathology confirming grade III follicular lymphoma
- ✓Physical exam or imaging documenting inguinal/lower limb node involvement
- ✓Laterality documentation
- ✓Query for IIIa vs. IIIb subclassification
- ✓Treatment plan reflecting aggressive management approach
Commonly Confused Codes
C82.15 — Grade II, inguinal/lower limb; lower grade with different managementC82.26 — Grade III, intrapelvic; deep pelvic vs. superficial inguinal distinctionC82.35 — Grade IIIa, inguinal/lower limb; use when subtype is specifiedC82.45 — Grade IIIb, inguinal/lower limb; use for centroblast-only pattern
Code Hierarchy
└C82Follicular lymphoma└C82.2Follicular lymphoma grade III, unspecified└C82.25Follicular lymphoma grade III, unspecified, lymph nodes of inguinal region and lower limb
└C82.25Follicular lymphoma grade III, unspecified, lymph nodes of inguinal region and lower limb