ICD-10 Code C86.50 – Angioimmunoblastic T-cell lymphoma not having achieved remission (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code C86.50 – Angioimmunoblastic T-cell lymphoma not having achieved remission
What it is
C86.50 identifies angioimmunoblastic T-cell lymphoma that is still active and has not reached remission. Use it when the record clearly states this lymphoma subtype and confirms it has not achieved remission.
Clinical signs
Clinical features vary; refer to documentation. Commonly recorded findings include generalized lymphadenopathy, fever, weight loss, rash, and immune-related abnormalities consistent with this lymphoma.
When to use this code
Use this code when the provider documents angioimmunoblastic T-cell lymphoma and states it is not in remission, persistent, recurrent, or active. It also fits follow-up visits where the diagnosis remains current and unresolved. Check documentation if remission status is not explicit.
Do not use for
Do not use it if the lymphoma is documented as in remission or if a different peripheral T-cell lymphoma subtype is named. Do not assume remission status from treatment history alone.
Coding tip
Always verify both the exact lymphoma subtype and the remission statement in the note before assigning C86.50.