ICD-10 Code C84.74 – Anaplastic large cell lymphoma, ALK-negative, lymph nodes of axilla and upper limb (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code C84.74 – Anaplastic large cell lymphoma, ALK-negative, lymph nodes of axilla and upper limb
What it is
This code identifies anaplastic large cell lymphoma that is ALK-negative and involves lymph nodes in the axilla or upper limb region. Use it when the record specifies this lymphoma subtype and nodal site.
Clinical signs
Clinical features vary; refer to documentation. Typical findings may include enlarged lymph nodes in the affected region and pathology confirming anaplastic large cell lymphoma with ALK-negative status.
When to use this code
Use this code when the provider documents ALK-negative anaplastic large cell lymphoma and specifies lymph node involvement in the axilla or upper limb. It also fits when pathology and clinical notes support that exact site. Check documentation if the site is described more generally.
Do not use for
Do not use this code if the lymphoma is ALK-positive, another lymphoma type, or the involved site is not the axilla or upper limb lymph nodes. Check documentation when the anatomic site is unclear.
Coding tip
Code only when both the ALK-negative status and nodal location are documented together.