ICD-10 Code C83.84 – Other non-follicular lymphoma, lymph nodes of axilla and upper limb (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code C83.84 – Other non-follicular lymphoma, lymph nodes of axilla and upper limb
What it is
This code identifies a non-follicular lymphoma involving lymph nodes in the axilla or upper limb. Use it when the record specifies this anatomic site and does not identify a more specific lymphoma type.
Clinical signs
Typical findings include enlarged axillary or upper-extremity lymph nodes, which may be painless and persistent. Clinical features vary; refer to documentation for the confirmed lymphoma subtype and site.
When to use this code
Use C83.84 when the provider documents other non-follicular lymphoma in lymph nodes of the axilla or upper limb. It is appropriate when pathology, imaging, or clinical assessment supports nodal lymphoma at that location. If the site or lymphoma type is not clearly stated, check documentation.
Do not use for
Do not use this code for follicular lymphoma, unspecified lymphoma, or lymphoma in a different lymph node region. Check documentation if the record only says “lymphoma” without the required site detail.
Coding tip
Verify both the histologic group and the nodal location before assigning C83.84.