ICD-10 Code C82.1A – Follicular lymphoma grade II, in remission (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code C82.1A – Follicular lymphoma grade II, in remission
What it is
This code identifies a history of follicular lymphoma grade II that is currently in remission. Use it when the lymphoma remains a documented diagnosis, but active disease is not present.
Clinical signs
Clinical features vary; refer to documentation. In remission, you may see no active lymphoma symptoms, while prior records may note lymphadenopathy, B symptoms, or biopsy-confirmed follicular lymphoma grade II.
When to use this code
Use this code when the provider documents follicular lymphoma grade II as being in remission, including follow-up visits after treatment. It is appropriate for ongoing surveillance, cancer history review, or problem lists when remission is specifically stated. Check documentation if the record does not clearly confirm remission status.
Do not use for
Do not use this code for active follicular lymphoma or for unspecified remission status. If the chart only says “history of lymphoma” without remission detail, check documentation.
Coding tip
Code remission only when the provider explicitly documents it; otherwise, query for clarification.