ICD-10 Code C81.94 – Hodgkin lymphoma, unspecified, lymph nodes of axilla and upper limb (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code C81.94 – Hodgkin lymphoma, unspecified, lymph nodes of axilla and upper limb
What it is
C81.94 identifies Hodgkin lymphoma when the site is the lymph nodes of the axilla and upper limb, but the subtype is not specified. Use it for documented Hodgkin disease involving these nodes when no more specific histology is stated.
Clinical signs
Clinical features vary; refer to documentation. Commonly, Hodgkin lymphoma presents with enlarged lymph nodes, often painless, and may include systemic “B” symptoms such as fever, night sweats, or weight loss.
When to use this code
Use this code when the record clearly states Hodgkin lymphoma and localizes it to axillary or upper-limb lymph nodes, but does not identify a more specific Hodgkin subtype. It also fits when the provider documents the site as these nodes without further detail. If the diagnosis is uncertain or another lymphoma type is named, check documentation.
Do not use for
Do not use this code for non-Hodgkin lymphoma, metastatic lymph node disease, or Hodgkin lymphoma in a different nodal region. If the site or histology is not documented, check documentation.
Coding tip
Confirm both the lymphoma type and the anatomic site in the provider note before assigning C81.94.