Personal history of other malignant neoplasm of thymus

This code indicates that a patient has a past medical history of a malignant tumor originating in the thymus gland, but the malignancy is no longer present. It signifies that the patient has completed treatment and is currently in remission or cured from this specific type of cancer. This history is important for ongoing surveillance and management of potential late effects or recurrence.

This code is used when documenting a patient's history of a successfully treated thymic malignancy. It is appropriate for follow-up appointments, surveillance visits, or when the patient presents for unrelated conditions but their past cancer history is relevant to their overall care. Do not use this code if the patient has active thymic cancer or a personal history of a benign thymic neoplasm.

• Always confirm that the thymic malignancy is no longer active before assigning this history code.
• Distinguish between a personal history of malignant neoplasm (Z85) and a personal history of benign neoplasm (Z86).
• Code any current active malignancies separately, even if they are secondary or metastatic to the thymus.