ICD-10 Code C83.57 – Lymphoblastic (diffuse) lymphoma, spleen (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code C83.57 – Lymphoblastic (diffuse) lymphoma, spleen
What it is
C83.57 identifies lymphoblastic lymphoma involving the spleen. Use it when documentation specifies this lymphoma subtype and splenic involvement, rather than a general lymphoma diagnosis.
Clinical signs
Clinical features vary; refer to documentation. Commonly, records describe splenic enlargement or imaging evidence of splenic disease, along with pathology confirming lymphoblastic lymphoma.
When to use this code
Use this code when the provider documents lymphoblastic lymphoma of the spleen, including biopsy or imaging-supported splenic involvement. It may also apply when the spleen is listed as the primary or involved site in a confirmed diagnosis.
If the note only says lymphoma, or another lymphoma subtype, you should not assign C83.57. Check documentation for the exact histology and site before coding.
Do not use for
Do not use this code for Hodgkin lymphoma, other non-Hodgkin subtypes, or nonspecific splenomegaly. If the spleen is not specifically involved, choose the code that matches the documented site.
Coding tip
Verify both the lymphoma subtype and the splenic site in the pathology or assessment before assigning C83.57.