ICD-10 Code C83.85 – Other non-follicular lymphoma, lymph nodes of inguinal region and lower limb (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code C83.85 – Other non-follicular lymphoma, lymph nodes of inguinal region and lower limb
What it is
C83.85 identifies a non-follicular lymphoma involving lymph nodes in the inguinal region or lower limb. Use it when documentation specifies this anatomic site and a non-follicular lymphoma subtype.
Clinical signs
Findings may include enlarged inguinal or lower-limb lymph nodes, sometimes with pain, firmness, or persistence. Clinical features vary; refer to documentation and pathology or imaging results when available.
When to use this code
Use this code when the provider documents other non-follicular lymphoma affecting lymph nodes of the groin or lower extremity. It is appropriate for confirmed lymphoma diagnoses tied to that site, including staging or follow-up documentation that still identifies the same nodal location.
Do not use for
Do not use it for follicular lymphoma, unspecified lymphoma, or lymph node disease in another body region. Check documentation if the site is not clearly inguinal or lower limb.
Coding tip
Match both the lymphoma type and the exact nodal location in the record before assigning C83.85.