ICD-10 Code C81.73 – Other Hodgkin lymphoma, intra-abdominal lymph nodes (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code C81.73 – Other Hodgkin lymphoma, intra-abdominal lymph nodes
What it is
This code identifies Hodgkin lymphoma involving intra-abdominal lymph nodes when the record specifies the “other” Hodgkin lymphoma category. Use it for disease documented in abdominal nodal sites, not for unspecified lymphoma.
Clinical signs
Clinical features vary; refer to documentation. Commonly, Hodgkin lymphoma may present with lymphadenopathy, abdominal fullness, pain, weight loss, fever, or night sweats, but the coded diagnosis depends on documented nodal involvement.
When to use this code
Use C81.73 when the provider documents other Hodgkin lymphoma affecting intra-abdominal lymph nodes, such as mesenteric or retroperitoneal nodes. The site must be clearly identified in the note, pathology report, or discharge summary. If the record only says Hodgkin lymphoma without location or subtype, check documentation.
Do not use for
Do not use this code for Hodgkin lymphoma in non-abdominal nodes or for other lymphoma types. Do not assign it when the documentation is vague and does not confirm intra-abdominal nodal involvement.
Coding tip
Confirm both the Hodgkin subtype and the abdominal nodal site before coding; if either element is missing, query the provider.