ICD-10 Code C83.3A – Diffuse large B-cell lymphoma, in remission (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code C83.3A – Diffuse large B-cell lymphoma, in remission
What it is
C83.3A identifies diffuse large B-cell lymphoma that is no longer showing active disease and is documented as in remission. Use it when the chart clearly states remission status for this specific lymphoma.
Clinical signs
Clinical features vary; refer to documentation. In remission, signs of active lymphoma are absent or improved, and follow-up notes may describe surveillance rather than ongoing tumor burden.
When to use this code
Use this code when the provider documents diffuse large B-cell lymphoma in remission, including complete, partial, or unspecified remission if that wording is supported. It is appropriate for follow-up visits, survivorship care, or monitoring after treatment when no active disease is recorded.
Do not use for
Do not use it for active diffuse large B-cell lymphoma, suspected recurrence, or lymphoma type not specified as diffuse large B-cell. Check documentation if remission status is unclear.
Coding tip
Code remission only when the provider explicitly states it; otherwise, query for clarification.