ICD-10 Code C85.98 – Non-Hodgkin lymphoma, unspecified, lymph nodes of multiple sites (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code C85.98 – Non-Hodgkin lymphoma, unspecified, lymph nodes of multiple sites
What it is
C85.98 identifies non-Hodgkin lymphoma when the type is not further specified and the disease involves lymph nodes at multiple sites. Use it when documentation confirms lymphoma in more than one nodal region but does not name a more specific subtype.
Clinical signs
Clinical features vary; refer to documentation. Common findings in lymphoma may include enlarged lymph nodes, constitutional symptoms, or evidence of nodal disease at several sites, but the record must support the unspecified diagnosis and multi-site involvement.
When to use this code
Use this code when the provider documents non-Hodgkin lymphoma without naming the histology or subtype, and the affected lymph nodes are in multiple locations. It also fits when the chart clearly states multiple nodal sites but does not support a more specific code. Check documentation if the primary site or subtype is later clarified.
Do not use for
Do not use C85.98 if the lymphoma subtype is documented and a more specific code is available. Do not use it for single-site nodal disease or for Hodgkin lymphoma.
Coding tip
Query the provider when the subtype, nodal distribution, or primary site is unclear, because specificity may change the final code.