C82.02
BillableFollicular lymphoma grade I, 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 slow-growing type of lymphoma called follicular lymphoma grade I located in the lymph nodes within the chest cavity.
Coding Tips
- •Intrathoracic lymph nodes include mediastinal and hilar nodes
- •Confirm imaging or pathology documentation specifies chest lymph node involvement
Clinical Significance
Follicular lymphoma grade I involving intrathoracic lymph nodes indicates mediastinal or hilar lymph node involvement, which may be discovered incidentally on chest imaging or during staging workup. Intrathoracic involvement can impact respiratory function if bulky disease is present and influences staging classification.
Documentation Requirements
- ✓Pathology report confirming follicular lymphoma grade I (0-5 centroblasts per HPF)
- ✓Imaging (CT chest, PET/CT) documenting specific intrathoracic lymph node involvement (mediastinal, hilar, paratracheal)
- ✓Ann Arbor stage designation
- ✓Assessment of bulky disease (greater than 6-10 cm)
- ✓Current treatment plan and disease status (active, stable, progressing)
Commonly Confused Codes
C82.12 — Follicular lymphoma grade II, intrathoracic; differentiate by centroblast count on pathologyC82.08 — Multiple sites; use C82.02 only when intrathoracic nodes are the sole site of involvementC85.12 — Unspecified non-Hodgkin lymphoma, intrathoracic; requires follicular subtype not yet confirmedC82.0A — Grade I in remission; do not use C82.02 if remission is documented
Code Hierarchy
└C82Follicular lymphoma└C82.0Follicular lymphoma grade I└C82.02Follicular lymphoma grade I, intrathoracic lymph nodes
└C82.02Follicular lymphoma grade I, intrathoracic lymph nodes