ICD-10 Code C83.53 – Lymphoblastic (diffuse) lymphoma, intra-abdominal lymph nodes (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code C83.53 – Lymphoblastic (diffuse) lymphoma, intra-abdominal lymph nodes
What it is
C83.53 identifies lymphoblastic lymphoma involving intra-abdominal lymph nodes. Use it when the record documents this specific non-Hodgkin lymphoma location and histology.
Clinical signs
Clinical features vary; refer to documentation. Commonly, records note lymph node enlargement, abdominal mass, pain, or systemic lymphoma findings, with diagnosis confirmed by pathology.
When to use this code
Use this code when the provider documents lymphoblastic lymphoma in intra-abdominal lymph nodes, or an equivalent pathology report with that site and type. It may also apply when the chart clearly states diffuse lymphoblastic lymphoma affecting abdominal nodal tissue. Check documentation if the site is unclear or if another lymphoma type is listed.
Do not use for
Do not use this code for unspecified lymphoma, leukemia without lymphoma documentation, or lymphoma in a different nodal region. If the record does not confirm intra-abdominal lymph node involvement, check documentation.
Coding tip
Match both the histology and the anatomic site exactly; if either is missing, query the record before assigning C83.53.