C83.02
BillableSmall cell B-cell lymphoma, intrathoracic lymph nodes
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 cancer of the lymph system (small cell B-cell lymphoma) affecting the lymph nodes inside the chest cavity.
Coding Tips
- •Verify documentation confirms intrathoracic (mediastinal, hilar, or other chest) lymph node involvement
- •Cross-reference imaging reports (CT chest) to confirm the anatomical location of lymph node involvement
Clinical Significance
Small cell B-cell lymphoma involving intrathoracic lymph nodes represents a low-grade non-Hodgkin lymphoma with indolent behavior but potential for transformation to aggressive disease. Accurate site documentation is critical for staging (Ann Arbor system) and treatment planning, as intrathoracic involvement may cause mediastinal compression symptoms requiring urgent intervention.
Documentation Requirements
- ✓Pathology-confirmed histological subtype (small cell B-cell lymphoma vs. other low-grade lymphomas)
- ✓Specific intrathoracic lymph node groups involved (mediastinal, hilar, paratracheal)
- ✓Ann Arbor staging with Cotswolds modifications
- ✓Current treatment status (active treatment, watchful waiting, post-treatment surveillance)
- ✓Imaging confirmation (CT chest or PET/CT) documenting intrathoracic lymph node involvement
Commonly Confused Codes
C83.01 — Small cell B-cell lymphoma of head/face/neck nodes; differentiate by anatomical site documentation on imagingC83.08 — Small cell B-cell lymphoma of multiple sites; use C83.02 only when disease is confined to intrathoracic nodesC85.10 — Unspecified non-Hodgkin lymphoma, unspecified site; always use specific histological subtype when pathology confirms small cell B-cellC83.12 — Mantle cell lymphoma, intrathoracic; different histological subtype requiring pathology differentiation