ICD-10 Code C84.6A – Anaplastic large cell lymphoma, ALK-positive, in remission (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code C84.6A – Anaplastic large cell lymphoma, ALK-positive, in remission
What it is
This code identifies a history of ALK-positive anaplastic large cell lymphoma that is currently in remission. Use it when the lymphoma is documented as no longer active but still clinically relevant.
Clinical signs
Clinical features vary; refer to documentation. The record should show ALK-positive anaplastic large cell lymphoma with remission status, not active disease.
When to use this code
Use this code when the provider documents ALK-positive anaplastic large cell lymphoma as being in remission at the current encounter. It is appropriate for follow-up visits, surveillance, or problem list maintenance when the malignancy is not active. If the chart does not clearly state remission, check documentation.
Do not use for
Do not use this code for active lymphoma, suspected lymphoma, or unspecified remission status. If the record describes recurrent or persistent disease, choose the active malignancy code instead.
Coding tip
Code remission only when the provider explicitly documents it; otherwise, query for clarification.