C81.73

Billable

Other Hodgkin lymphoma, intra-abdominal 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

This code describes a type of Hodgkin lymphoma (a cancer of the lymph system) that is located in the lymph nodes within the abdominal cavity. It represents a specific subtype of Hodgkin lymphoma affecting the internal lymph nodes in the belly area.

Coding Tips

•Verify the histological subtype documented in the pathology report, as C81.73 specifically indicates 'Other Hodgkin lymphoma' - ensure it's not nodular sclerosis (C81.13), mixed cellularity (C81.23), or lymphocyte-rich (C81.43) subtypes
•Confirm the anatomical site is documented as intra-abdominal lymph nodes; if lymphoma involves multiple sites, additional codes may be needed to capture all involved nodal regions

Clinical Significance

Other Hodgkin lymphoma involving intra-abdominal lymph nodes captures a rare variant subtype presenting below the diaphragm. Abdominal nodal disease may cause nonspecific symptoms and is typically identified on cross-sectional imaging. The 'other' histologic classification warrants expert pathology review to characterize the specific morphologic features and guide treatment planning.

Documentation Requirements

✓Pathology confirming Hodgkin lymphoma with 'other' subtype classification
✓Imaging specifying intra-abdominal lymph node involvement (para-aortic, mesenteric, retroperitoneal)
✓Clear distinction from intrapelvic nodes (below pelvic brim) and splenic involvement
✓Staging documentation
✓Active treatment or monitoring documentation

Commonly Confused Codes

C81.76 — Other Hodgkin lymphoma, intrapelvic: abdominal nodes are above the pelvic brim; pelvic nodes are below C81.77 — Other Hodgkin lymphoma, spleen: splenic involvement is coded separately from abdominal node disease C81.93 — Hodgkin lymphoma, unspecified, intra-abdominal: use C81.73 when pathology classifies the variant; C81.93 when type is unknown

Code Hierarchy

└C81Hodgkin lymphoma └C81.7Other Hodgkin lymphoma └C81.73Other Hodgkin lymphoma, intra-abdominal lymph nodes

└C81.73Other Hodgkin lymphoma, intra-abdominal lymph nodes