ICD-10 Code C84.69 – Anaplastic large cell lymphoma, ALK-positive, extranodal and solid organ sites (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code C84.69 – Anaplastic large cell lymphoma, ALK-positive, extranodal and solid organ sites
What it is
This code identifies anaplastic large cell lymphoma that is ALK-positive and involves extranodal or solid organ sites rather than only lymph nodes. Use it when the record clearly documents this specific lymphoma subtype and site.
Clinical signs
Clinical features vary; refer to documentation. Commonly, the diagnosis is confirmed by pathology showing anaplastic large cell lymphoma with ALK positivity, along with evidence of disease in extranodal tissue or a solid organ.
When to use this code
Use C84.69 when the provider documents ALK-positive anaplastic large cell lymphoma involving sites such as skin, lung, liver, or other extranodal/solid organ locations. It is appropriate for confirmed primary or involved sites when the chart supports this exact description.
If the note only says anaplastic large cell lymphoma without ALK status or site detail, check documentation before coding. You should also confirm whether the disease is nodal or extranodal, since that affects code selection.
Do not use for
Do not use this code for ALK-negative anaplastic large cell lymphoma, unspecified site disease, or lymphoma documented only in lymph nodes. Check documentation if the pathology report does not clearly state ALK positivity.
Coding tip
Match the code to both ALK status and anatomic site; if either element is missing, query the provider.