ICD-10 Code C82.58 – Diffuse follicle center lymphoma, lymph nodes of multiple sites (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code C82.58 – Diffuse follicle center lymphoma, lymph nodes of multiple sites
What it is
C82.58 identifies diffuse follicle center lymphoma involving lymph nodes at multiple sites. Use this code when the record documents this specific follicular lymphoma pattern and nodal distribution.
Clinical signs
Clinical features vary; refer to documentation. Typical records may note enlarged lymph nodes in more than one nodal region, with pathology confirming diffuse follicle center lymphoma.
When to use this code
Use C82.58 when the provider documents diffuse follicle center lymphoma and specifies lymph nodes of multiple sites. It also fits when pathology or oncology notes clearly identify multifocal nodal involvement. If the site is not stated, check documentation before coding.
Do not use for
Do not use this code for unspecified follicular lymphoma, a single nodal site, or non-lymphoma lymph node enlargement. If the diagnosis wording differs, verify the exact lymphoma type and anatomic extent.
Coding tip
Code only the documented lymphoma subtype and nodal distribution; when the record is incomplete, query for clarification.