C82.12
BillableFollicular lymphoma grade II, 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 cancer of lymph cells (follicular lymphoma, grade II) affecting lymph nodes in the chest area.
Coding Tips
- •Intrathoracic lymph nodes include mediastinal and hilar nodes; document specific location if available
- •Grade II indicates intermediate differentiation with potential for transformation to higher grades
Clinical Significance
Follicular lymphoma grade II involving intrathoracic lymph nodes indicates mediastinal or hilar nodal disease with intermediate-grade histology. Intrathoracic bulk disease may cause superior vena cava syndrome or airway compression. Grade II designation guides treatment intensity decisions between watch-and-wait and active therapy.
Documentation Requirements
- ✓Pathology confirming grade II follicular lymphoma
- ✓CT or PET/CT documenting intrathoracic lymph node involvement with measurements
- ✓Assessment for bulky mediastinal disease (>6-10 cm or >1/3 chest diameter)
- ✓Evaluation for compressive symptoms
- ✓Staging and treatment plan documentation
Commonly Confused Codes
C82.02 — Grade I, intrathoracic; differentiate by centroblast count on pathologyC82.22 — Grade III, intrathoracic; higher grade requires different treatment considerationsC85.12 — Unspecified non-Hodgkin lymphoma, intrathoracic; use when subtype not yet confirmedC82.19 — Grade II, extranodal; lung parenchymal involvement is extranodal, not intrathoracic nodal
Code Hierarchy
└C82Follicular lymphoma└C82.1Follicular lymphoma grade II└C82.12Follicular lymphoma grade II, intrathoracic lymph nodes
└C82.12Follicular lymphoma grade II, intrathoracic lymph nodes