Personal history of malignant neoplasm, unspecified

This code indicates that a patient has a past medical history of a malignant tumor, but the specific type or primary site of the cancer is not documented or is unknown. It signifies that the patient is no longer undergoing active treatment for the malignancy and is considered to be in remission or cured.

Use this code when a patient's medical record clearly states a history of cancer, but further details regarding the original malignancy's site or histology are unavailable. It is appropriate for follow-up encounters or when documenting a patient's overall health status where a prior cancer diagnosis is relevant but unspecified.

• Only use this code when the specific site of the prior malignancy cannot be determined from the medical record.
• Always strive for a more specific Z85 code if the primary site of the malignant neoplasm is known.
• Do not use this code if the patient is currently undergoing active treatment for cancer or has a recurrence.