ICD-10 Code C85.89 – Other specified types of non-Hodgkin lymphoma, extranodal and solid organ sites (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code C85.89 – Other specified types of non-Hodgkin lymphoma, extranodal and solid organ sites
What it is
This code identifies a non-Hodgkin lymphoma that is documented as “other specified” and arises in an extranodal or solid organ site. Use it when the record names the lymphoma type but not a more specific ICD-10 category.
Clinical signs
Clinical features vary; refer to documentation. Findings may include a mass or organ-specific symptoms, and diagnosis is usually confirmed by pathology and imaging showing lymphoma outside lymph nodes.
When to use this code
Use C85.89 when the provider documents a specified non-Hodgkin lymphoma involving an extranodal or solid organ site, and no more precise code is available. It is appropriate for site-based documentation such as lymphoma in an organ, not just lymph nodes. If the chart names a different lymphoma subtype, check documentation before coding.
Do not use for
Do not use this code for unspecified non-Hodgkin lymphoma or for lymphomas limited to lymph nodes unless the record clearly supports extranodal or solid organ involvement. Check documentation if the site or subtype is unclear.
Coding tip
Match the documented lymphoma subtype and site exactly; if the record is vague, query for clarification before assigning C85.89.