C82.91
BillableFollicular lymphoma, unspecified, lymph nodes of head, face, and neck
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
Follicular lymphoma affecting lymph nodes in the head, face, and neck region.
Coding Tips
- •Use this code when lymphoma is documented in cervical, submandibular, or other head and neck lymph nodes
- •Ensure documentation specifies head, face, or neck location to differentiate from other anatomical sites
Clinical Significance
Follicular lymphoma, unspecified type, involving head, face, and neck lymph nodes provides at least site specificity even when the follicular lymphoma grade is not determined. Cervical and other head/neck lymphadenopathy from lymphoma is common and requires a complete pathology workup to determine the specific grade. A provider query should be initiated to obtain grade information from the pathology report, as this affects treatment decisions and more precise coding.
Documentation Requirements
- ✓Pathology confirming follicular lymphoma diagnosis
- ✓Documentation of head, face, or neck lymph node involvement
- ✓Query submitted for grade determination from pathology
- ✓Imaging documenting the extent of head/neck disease
- ✓Staging evaluation
Commonly Confused Codes
C82.81 — Other types of follicular lymphoma, lymph nodes of head, face, and neck: Use when a specific 'other' type is identifiedC82.51 — Diffuse follicle center lymphoma, lymph nodes of head, face, and neck: Use when diffuse type is confirmedC82.61 — Cutaneous follicle center lymphoma, lymph nodes of head, face, and neck: Use when cutaneous origin is confirmed
Code Hierarchy
└C82Follicular lymphoma└C82.9Follicular lymphoma, unspecified└C82.91Follicular lymphoma, unspecified, lymph nodes of head, face, and neck
└C82.91Follicular lymphoma, unspecified, lymph nodes of head, face, and neck