ICD-10 Code C83.81 – Other non-follicular lymphoma, lymph nodes of head, face, and neck (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code C83.81 – Other non-follicular lymphoma, lymph nodes of head, face, and neck
What it is
This code identifies a non-follicular lymphoma involving lymph nodes in the head, face, or neck. Use it when the record specifies this anatomic site and does not name a more specific lymphoma type.
Clinical signs
Typical findings include enlarged cervical or other head and neck lymph nodes, sometimes with painless swelling. Clinical features vary; refer to documentation.
When to use this code
Use C83.81 when the provider documents other non-follicular lymphoma affecting lymph nodes of the head, face, or neck. It fits cases where pathology or clinical notes confirm lymphoma in these nodes, but the subtype is not more specifically assigned elsewhere.
Check documentation if the report names a different lymphoma category, a primary site outside the head and neck, or only a history of lymphoma.
Do not use for
Do not use this code for follicular lymphoma or for lymphoma in other lymph node regions. Check documentation if the diagnosis is unspecified or better described by another ICD-10-CM code.
Coding tip
Code the exact lymphoma subtype and site from the pathology or oncology note; if the site is not clearly documented, check documentation.