Matern care for known or susp placntl insuff, 2nd tri, fts4

This code signifies ongoing maternal medical management and monitoring due to a confirmed or highly suspected inadequacy of placental function during the second trimester of pregnancy. This insufficiency compromises the transfer of nutrients and oxygen to the developing fetus, specifically the fourth fetus in a multiple gestation.

Apply this code when documentation indicates a diagnosis of placental insufficiency in the second trimester for a specific fetus (fetus 4). Supporting documentation would include ultrasound findings (e.g., abnormal Doppler studies, fetal growth restriction), maternal risk factors, and the physician's assessment of placental dysfunction.

• Ensure the documentation clearly specifies "second trimester" and identifies the affected fetus as "fetus 4."
• Do not use this code for placental abruption or placenta previa; those have distinct codes.
• Sequence this code as a secondary diagnosis following the code for the primary reason for the encounter, if applicable.