Malignant neoplasm complicating pregnancy, third trimester

This code signifies the presence of a malignant neoplasm (cancer) in a pregnant patient who is in her third trimester. It indicates that the cancer is a complicating factor in the current pregnancy, requiring careful management for both the mother and the fetus.

Use this code when documentation clearly states a diagnosis of a malignant neoplasm and the patient is confirmed to be in her third trimester of pregnancy. This code is appropriate for cases where the cancer impacts pregnancy management, delivery planning, or fetal well-being.

• Always code the specific type of malignant neoplasm first, followed by this code.
• Do not use this code if the malignancy is in remission or cured prior to pregnancy; it must be an active complication.
• Ensure the medical record explicitly states the trimester of pregnancy.