ICD-10 Code C84.72 – Anaplastic large cell lymphoma, ALK-negative, intrathoracic lymph nodes (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code C84.72 – Anaplastic large cell lymphoma, ALK-negative, intrathoracic lymph nodes
What it is
This code identifies an anaplastic large cell lymphoma that is ALK-negative and documented as involving intrathoracic lymph nodes. Use it when the diagnosis specifies this lymphoma subtype and nodal location.
Clinical signs
Clinical features vary; refer to documentation. Typical lymphoma findings may include enlarged lymph nodes, constitutional symptoms, or imaging evidence of intrathoracic nodal disease, but the record must confirm the ALK-negative subtype.
When to use this code
Use this code when the provider documents ALK-negative anaplastic large cell lymphoma with involvement of intrathoracic lymph nodes, such as mediastinal or hilar nodes. It also applies when pathology or oncology notes clearly support that exact site and subtype. Check documentation if the site is listed only as thoracic or chest.
Do not use for
Do not use it for ALK-positive anaplastic large cell lymphoma, other non-Hodgkin lymphomas, or lymph node disease outside the intrathoracic region. If the record does not specify ALK status or nodal location, check documentation.
Coding tip
Assign this code only when both the ALK-negative status and intrathoracic lymph node involvement are explicitly documented.