ICD-10 Code C85.92 – Non-Hodgkin lymphoma, unspecified, intrathoracic lymph nodes (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code C85.92 – Non-Hodgkin lymphoma, unspecified, intrathoracic lymph nodes
What it is
This code identifies non-Hodgkin lymphoma when the type is not specified and the involved lymph nodes are inside the chest. Use it when documentation confirms intrathoracic nodal disease without a more specific lymphoma subtype.
Clinical signs
Clinical features vary; refer to documentation. Patients may have mediastinal or hilar lymph node enlargement, cough, chest discomfort, shortness of breath, or be asymptomatic with imaging findings only.
When to use this code
Use C85.92 when the record states non-Hodgkin lymphoma and names intrathoracic lymph nodes as the site, but does not identify a more specific histology or subtype. It also fits when pathology or oncology notes confirm nodal involvement in the chest and the site is the key documented detail.
Do not use for
Do not use this code if the lymphoma subtype is specified elsewhere in the record, or if the disease involves non-intrathoracic nodes only. Check documentation when the site is unclear or when the diagnosis is not confirmed.
Coding tip
Verify both the lymphoma type and the anatomic site in the same encounter note before assigning this unspecified code.