Placentitis, third trimester, fetus 2

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

Use this code when documentation clearly indicates placentitis in a pregnant patient who is in her third trimester and carrying twins, triplets, or higher-order multiples, with the condition specifically identified as affecting the second fetus. Supporting documentation would include ultrasound reports, pathology findings, or physician notes detailing the placental inflammation and fetal involvement.

• Ensure the documentation specifies "third trimester" and clearly identifies the affected fetus as "fetus 2" in a multiple gestation.
• Do not use this code for placentitis affecting a single gestation or a different fetus in a multiple gestation; specific codes exist for those scenarios.
• Always sequence this code after the primary obstetric code indicating the pregnancy status.