ICD-10 Code C82.94 – Follicular lymphoma, unspecified, lymph nodes of axilla and upper limb (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code C82.94 – Follicular lymphoma, unspecified, lymph nodes of axilla and upper limb
What it is
C82.94 identifies follicular lymphoma when the site is the lymph nodes of the axilla or upper limb and the subtype is not further specified. Use it for documented lymphoma in these nodal regions when the record does not name a more precise follicular lymphoma type.
Clinical signs
Clinical features vary; refer to documentation. Follicular lymphoma commonly presents as painless lymph node enlargement, and the axillary or upper-limb nodes may be the involved site noted on exam, imaging, or biopsy.
When to use this code
Use this code when the provider documents follicular lymphoma involving axillary or upper-limb lymph nodes and does not specify a more detailed follicular subtype. It also fits when pathology confirms follicular lymphoma but the site is limited to those nodes. If the chart names another nodal region, choose the matching site-specific code instead.
Do not use for
Do not use this code for non-follicular lymphomas, metastatic cancer to lymph nodes, or generalized lymph node involvement without the axilla or upper limb being specified. Check documentation if the anatomic site or lymphoma type is unclear.
Coding tip
Verify both the lymphoma type and the exact nodal site in the pathology or oncology note before assigning C82.94.