Mediastinal (thymic) large B-cell lymphoma, in remission

This code signifies a past diagnosis of mediastinal large B-cell lymphoma, a rare and aggressive subtype of non-Hodgkin lymphoma originating in the mediastinum, specifically the thymus. The "in remission" status indicates that the signs and symptoms of the cancer have disappeared, and there is no evidence of active disease at the time of encounter.

Use this code for patients with a documented history of mediastinal large B-cell lymphoma who are currently in complete or partial remission following treatment. Documentation should clearly state the type of lymphoma and confirm the remission status, often supported by imaging and laboratory findings. This code is appropriate for follow-up visits, surveillance, or when the patient is receiving care for other conditions while their lymphoma remains in remission.

• Always sequence this code after any codes for active treatment or complications related to the lymphoma if still ongoing.
• Do not use this code if the patient has active disease; instead, use the appropriate code for active mediastinal large B-cell lymphoma.
• Ensure documentation specifies "mediastinal" and "large B-cell" to differentiate from other lymphoma types and locations.