ICD-10 Code C83.89 – Other non-follicular lymphoma, extranodal and solid organ sites (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code C83.89 – Other non-follicular lymphoma, extranodal and solid organ sites
What it is
This code identifies a non-follicular lymphoma arising in an extranodal site or solid organ rather than primarily in a lymph node. Use it when the documentation specifies this lymphoma type and location.
Clinical signs
Clinical features vary; refer to documentation. Patients may present with organ-specific masses, swelling, pain, or symptoms related to the affected extranodal site, and diagnosis is usually confirmed by pathology.
When to use this code
Use C83.89 when the record states other non-follicular lymphoma involving an extranodal or solid organ site, such as a documented lymphoma in a specific organ. You may also use it when the clinician clearly identifies the site as extranodal and no more specific lymphoma code is available. Check documentation if the site or lymphoma subtype is unclear.
Do not use for
Do not use this code for follicular lymphoma, primary nodal disease without extranodal involvement, or a more specific non-follicular lymphoma code when one is documented.
Coding tip
Code from the pathology or provider statement first, and verify the exact lymphoma type and anatomic site before assigning C83.89.