C81.16

Billable

Nodular sclerosis Hodgkin lymphoma, intrapelvic lymph nodes

HCC Category Mapping

V28HCC 21 — Breast, Prostate, Colorectal and Other Cancers and Tumors

0.545

V24HCC 10 — Lymphoma and Other Cancers

0.675

ESRDHCC 10 — Lymphoma and Other Cancers

0.000

RxHCCHCC 21 — Hodgkin Lymphoma and Other Cancers

0.000

What This Code Means

A type of Hodgkin lymphoma with nodular sclerosis pattern affecting lymph nodes inside the pelvis.

Coding Tips

•Character '6' indicates intrapelvic lymph node sites; imaging studies should confirm pelvic involvement
•Seventh character extension is required for complete coding

Clinical Significance

Nodular sclerosis Hodgkin lymphoma of intrapelvic lymph nodes indicates deep pelvic lymph node involvement, which is an uncommon presentation for Hodgkin lymphoma. Intrapelvic disease is typically discovered on cross-sectional imaging rather than physical examination. This finding usually indicates Stage II or higher disease depending on additional sites of involvement and generally requires systemic chemotherapy.

Documentation Requirements

✓Pathology confirming nodular sclerosis subtype
✓Cross-sectional imaging documenting intrapelvic lymph node involvement
✓Specific pelvic lymph node groups identified (iliac, obturator, presacral)
✓Distinction from inguinal lymph nodes (C81.15) and intra-abdominal lymph nodes (C81.13)
✓Complete staging workup
✓Treatment plan

Commonly Confused Codes

C81.15 — Nodular sclerosis, inguinal/lower limb: Superficial groin nodes, not deep pelvic nodes C81.13 — Nodular sclerosis, intra-abdominal: Abdominal lymph nodes are anatomically separate from pelvic nodes C81.06 — NLPHL, intrapelvic: Different subtype at the same location C81.10 — Nodular sclerosis, unspecified site: Use C81.16 when pelvic node involvement is documented

Code Hierarchy

└C81Hodgkin lymphoma └C81.1Nodular sclerosis Hodgkin lymphoma └C81.16Nodular sclerosis Hodgkin lymphoma, intrapelvic lymph nodes

└C81.16Nodular sclerosis Hodgkin lymphoma, intrapelvic lymph nodes