C82.53

Billable

Diffuse follicle center 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

A type of non-Hodgkin lymphoma that starts in follicle center cells and affects lymph nodes in the abdomen.

Coding Tips

•Verify the specific anatomical site (intra-abdominal) is documented in the medical record
•Check for remission status as C82.5A may be more appropriate if patient is in remission

Clinical Significance

Diffuse follicle center lymphoma affecting intra-abdominal lymph nodes may involve mesenteric, retroperitoneal, or para-aortic nodes and can present with abdominal pain, early satiety, or bowel obstruction from bulky disease. Intra-abdominal lymphoma often requires cross-sectional imaging with contrast for adequate staging. Mesenteric disease in particular can be extensive at presentation and may complicate surgical intervention if needed.

Documentation Requirements

✓Pathology confirming diffuse follicle center lymphoma
✓Abdominal CT or PET/CT documenting specific intra-abdominal lymph node groups involved
✓Measurement of largest lymph node mass (bulky disease threshold typically >7-10 cm)
✓Assessment for bowel or ureteral obstruction, ascites, or other complications
✓Documentation of whether disease is limited to abdominal nodes or involves other regions

Commonly Confused Codes

C82.59 — Diffuse follicle center lymphoma, extranodal and solid organ sites: Use C82.53 for abdominal lymph node involvement; use C82.59 when abdominal solid organs (liver, GI wall) are directly infiltrated C82.56 — Diffuse follicle center lymphoma, intrapelvic lymph nodes: Distinguish intra-abdominal from intrapelvic nodes — pelvic nodes are below the pelvic brim C82.57 — Diffuse follicle center lymphoma, spleen: If only the spleen is involved in the abdomen, use the spleen-specific code

Code Hierarchy

└C82Follicular lymphoma └C82.5Diffuse follicle center lymphoma └C82.53Diffuse follicle center lymphoma, intra-abdominal lymph nodes

└C82.53Diffuse follicle center lymphoma, intra-abdominal lymph nodes