ICD-10 Code C83.82 – Other non-follicular lymphoma, intrathoracic lymph nodes (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code C83.82 – Other non-follicular lymphoma, intrathoracic lymph nodes
What it is
This code identifies a non-follicular lymphoma involving intrathoracic lymph nodes, such as mediastinal or hilar nodes. Use it when the record specifies this lymphoma site and does not name a more specific subtype.
Clinical signs
Clinical features vary; refer to documentation. Patients may present with enlarged intrathoracic lymph nodes found on imaging, biopsy-confirmed lymphoma, or related chest symptoms such as cough or shortness of breath.
When to use this code
Use this code when the diagnosis states other non-follicular lymphoma and the documented site is intrathoracic lymph nodes. It is appropriate after pathology, imaging, or specialist assessment confirms the nodal location and lymphoma type. If the subtype is more specific, code that instead.
Do not use for
Do not use this code for follicular lymphoma or for lymphoma outside the intrathoracic nodes. Check documentation if the record only says “lymphoma” without a confirmed non-follicular type or thoracic nodal site.
Coding tip
Verify both the lymphoma type and the anatomic site in the final diagnostic statement before assigning C83.82.