ICD-10 Code C83.52 – Lymphoblastic (diffuse) lymphoma, intrathoracic lymph nodes (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code C83.52 – Lymphoblastic (diffuse) lymphoma, intrathoracic lymph nodes
What it is
This code identifies lymphoblastic lymphoma involving intrathoracic lymph nodes, such as mediastinal or hilar nodes. It describes a malignant lymphoid neoplasm documented as lymphoblastic and located in the chest.
Clinical signs
Clinical features vary; refer to documentation. Commonly recorded findings may include enlarged intrathoracic lymph nodes seen on imaging, chest symptoms, or biopsy-confirmed lymphoblastic lymphoma.
When to use this code
Use this code when the provider documents lymphoblastic lymphoma specifically affecting intrathoracic lymph nodes. It is appropriate when the site is clearly identified as mediastinal, hilar, or other chest lymph nodes. If the record only says lymphoma without site detail, check documentation.
Do not use for
Do not use this code for other lymphoma types or for lymph node disease outside the thorax. Avoid it when documentation is nonspecific or names a different anatomic site.
Coding tip
Confirm both the lymphoma subtype and the intrathoracic nodal site in the pathology or oncology note before assigning C83.52.