ICD-10 Code C81.05 – Nodular lymphocyte predominant Hodgkin lymphoma, lymph nodes of inguinal region and lower limb (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code C81.05 – Nodular lymphocyte predominant Hodgkin lymphoma, lymph nodes of inguinal region and lower limb
What it is
C81.05 identifies nodular lymphocyte predominant Hodgkin lymphoma affecting lymph nodes in the inguinal region or lower limb. Use it when documentation specifies this lymphoma subtype and nodal location.
Clinical signs
Clinical features vary; refer to documentation. Commonly, lymphoma is noted as enlarged lymph nodes, often painless, with pathology confirming nodular lymphocyte predominant Hodgkin lymphoma.
When to use this code
Use this code when the provider documents nodular lymphocyte predominant Hodgkin lymphoma in inguinal or lower-limb lymph nodes. It may appear on pathology, oncology, or discharge records with a specified nodal site. If the site is not stated, check documentation before coding.
Do not use for
Do not use it for other Hodgkin or non-Hodgkin lymphoma types, or for unspecified lymph node sites. If the record only says lymphoma without this subtype or location, check documentation.
Coding tip
Match both the lymphoma subtype and the anatomic site exactly; if either element is missing, query the record before assigning C81.05.