Placental infarction, third trimester

This diagnosis code signifies the presence of an area of ischemic necrosis within the placenta during the third trimester of pregnancy. This condition results from an interruption of blood supply to a portion of the placenta, potentially compromising fetal well-being.

Apply this code when documentation explicitly states placental infarction occurring in the third trimester. Supporting documentation would include imaging reports (e.g., ultrasound, MRI) detailing the infarction, or pathology reports from placental examination confirming the diagnosis.

• Ensure the documentation specifies "infarction" and not merely "placental insufficiency" without evidence of necrosis.
• Verify the trimester of pregnancy; this code is specific to the third trimester.
• Code any associated maternal or fetal complications separately, such as intrauterine growth restriction (IUGR) or pre-eclampsia.