ICD-10 Code C81.11 – Nodular sclerosis Hodgkin lymphoma, lymph nodes of head, face, and neck (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code C81.11 – Nodular sclerosis Hodgkin lymphoma, lymph nodes of head, face, and neck
What it is
This code identifies nodular sclerosis Hodgkin lymphoma involving lymph nodes in the head, face, or neck. It refers to a specific Hodgkin lymphoma subtype documented at that anatomic site.
Clinical signs
Typical findings include enlarged lymph nodes, often in the neck, that may be painless and persistent. Clinical features vary; refer to documentation for pathology confirmation and site involvement.
When to use this code
Use this code when the provider documents nodular sclerosis Hodgkin lymphoma and specifies lymph nodes of the head, face, or neck. It also fits when pathology or oncology notes clearly support that subtype and location. If the site is not stated, check documentation.
Do not use for
Do not use this code for other Hodgkin lymphoma subtypes or for unspecified lymph node involvement. Do not assign it when documentation only mentions lymphadenopathy without a confirmed lymphoma diagnosis.
Coding tip
Match both the lymphoma subtype and the anatomic site exactly as documented before selecting C81.11.