C83.56
BillableLymphoblastic (diffuse) lymphoma, intrapelvic lymph nodes
HCC Category Mapping
V28HCC 20 — Lung and Other Severe Cancers
0.000V24HCC 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 blood cancer affecting immature lymphoid cells located in the lymph nodes within the pelvis.
Coding Tips
- •Ensure documentation indicates intrapelvic lymph node involvement
- •This includes iliac, obturator, and other pelvic lymph nodes
Clinical Significance
Lymphoblastic lymphoma of intrapelvic lymph nodes involves deep pelvic nodal chains and is typically identified on cross-sectional imaging during staging. This aggressive lymphoma requires urgent treatment initiation, and pelvic involvement may cause urological or gynecological symptoms through mass effect.
Documentation Requirements
- ✓Pathology confirmation with TdT and lineage markers
- ✓CT or MRI pelvis documenting intrapelvic lymph node involvement
- ✓Specific pelvic node groups identified (iliac, obturator, sacral)
- ✓Bone marrow biopsy results
- ✓Assessment for mass effect on pelvic organs
Commonly Confused Codes
C83.55 — Lymphoblastic lymphoma, inguinal/lower limb; inguinal nodes are superficial, intrapelvic are deepC83.53 — Lymphoblastic lymphoma, intra-abdominal; abdominal nodes are above the pelvic brimC83.36 — DLBCL, intrapelvic; mature vs. immature cell distinctionC83.59 — Lymphoblastic lymphoma, extranodal; pelvic organ involvement is extranodal, not nodal
Code Hierarchy
└C83Non-follicular lymphoma└C83.5Lymphoblastic (diffuse) lymphoma└C83.56Lymphoblastic (diffuse) lymphoma, intrapelvic lymph nodes
└C83.56Lymphoblastic (diffuse) lymphoma, intrapelvic lymph nodes