ICD-10 Code C81.43 – Lymphocyte-rich Hodgkin lymphoma, intra-abdominal lymph nodes (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code C81.43 – Lymphocyte-rich Hodgkin lymphoma, intra-abdominal lymph nodes
What it is
This code identifies lymphocyte-rich Hodgkin lymphoma involving intra-abdominal lymph nodes. Use it when documentation specifies this Hodgkin lymphoma subtype and the abdominal nodal site.
Clinical signs
Clinical features vary; refer to documentation. Hodgkin lymphoma may present with enlarged lymph nodes, constitutional symptoms, or imaging and biopsy findings confirming the lymphocyte-rich subtype.
When to use this code
Use this code when the provider documents lymphocyte-rich Hodgkin lymphoma and clearly states intra-abdominal lymph node involvement. It is appropriate for confirmed primary or current disease at that nodal site. Check documentation if the site or subtype is not explicit.
Do not use for
Do not use it for other Hodgkin lymphoma subtypes or for unspecified lymph node sites. Do not assign it when documentation only says lymphoma, abdominal mass, or suspected disease.
Coding tip
Match both the histology and anatomic site in the record before assigning C81.43.