Placentitis, third trimester, fetus 4

This code signifies inflammation of the placenta occurring during the third trimester of pregnancy, specifically affecting the fourth fetus in a multiple gestation. Placentitis can be caused by infection and may lead to adverse pregnancy outcomes.

Apply this code when documentation clearly indicates placentitis diagnosed in the third trimester of a multifetal pregnancy, and the condition is specifically attributed to the fourth fetus. Supporting documentation should include physician notes detailing the placental inflammation and the gestational age.

• Ensure the documentation specifies "third trimester" and identifies the affected fetus as the fourth in a multiple gestation.
• Do not confuse with codes for other placental conditions like placental abruption or placenta previa.
• Sequence this code as a secondary diagnosis when the primary reason for encounter is related to the management of the placentitis or its complications.