ICD-10 Code C85.93 – Non-Hodgkin lymphoma, unspecified, intra-abdominal lymph nodes (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code C85.93 – Non-Hodgkin lymphoma, unspecified, intra-abdominal lymph nodes
What it is
This code identifies non-Hodgkin lymphoma when the type is not further specified and the involved lymph nodes are inside the abdomen. Use it when the record documents intra-abdominal nodal disease without a more precise lymphoma subtype.
Clinical signs
Clinical features vary; refer to documentation. Common findings may include enlarged abdominal lymph nodes on imaging, abdominal pain or fullness, or biopsy-confirmed lymphoma involving intra-abdominal nodes.
When to use this code
Use C85.93 when the provider documents non-Hodgkin lymphoma affecting intra-abdominal lymph nodes and does not name a more specific histology. It may also apply when pathology confirms lymphoma in abdominal nodes but the subtype remains unspecified. Check documentation if the primary site or exact lymphoma type is unclear.
Do not use for
Do not use this code for Hodgkin lymphoma, a specified non-Hodgkin subtype, or lymphoma limited to non-abdominal nodal regions. If the record identifies a different site or a more specific diagnosis, code that instead.
Coding tip
Verify both the lymphoma type and the nodal location; unspecified wording should match the provider’s documentation exactly.