ICD-10 Code C82.34 – Follicular lymphoma grade IIIa, lymph nodes of axilla and upper limb (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code C82.34 – Follicular lymphoma grade IIIa, lymph nodes of axilla and upper limb
What it is
This code identifies follicular lymphoma grade IIIa involving lymph nodes in the axilla or upper limb. It is a specific lymphoma diagnosis tied to the nodal site documented by the clinician.
Clinical signs
Typical findings include enlarged lymph nodes in the axilla or upper limb region and pathology confirming follicular lymphoma grade IIIa. Clinical features vary; refer to documentation.
When to use this code
Use C82.34 when the record clearly states follicular lymphoma grade IIIa and specifies axillary or upper-limb lymph nodes as the involved site. Code it from pathology, oncology, or discharge documentation when the diagnosis is confirmed. If the site or grade is not documented, check documentation.
Do not use for
Do not use this code for other lymphoma grades, unspecified follicular lymphoma, or disease limited to non-axillary nodal sites. If the chart does not confirm grade IIIa, do not assume it.
Coding tip
Match both the lymphoma grade and the exact nodal location before assigning C82.34.