In simple words: This code indicates an infection of the placenta in the second trimester of pregnancy in cases where the mother is pregnant with more than five fetuses.

Placentitis, second trimester, other fetus.This code is used to describe inflammation of the placenta specifically during the second trimester (14 weeks 0 days to less than 28 weeks 0 days) of pregnancy, affecting a fetus beyond the fifth in a multiple gestation pregnancy.

Example 1: A pregnant woman in her second trimester, carrying sextuplets, presents with fever, abdominal pain, and uterine tenderness. Ultrasound reveals inflammation of the placenta affecting the sixth fetus.O41.1429 is used to code the placentitis., A woman pregnant with septuplets in her 20th week of pregnancy experiences premature rupture of membranes.Examination reveals signs of infection, including placentitis affecting two of the fetuses, specifically the 6th and 7th. O41.1429 is applied., A patient in her second trimester, pregnant with more than five fetuses, shows signs of chorioamnionitis. Further investigation identifies placental inflammation affecting fetus number six. This condition is coded as O41.1429.

Documentation should include ultrasound findings confirming placentitis, clinical signs and symptoms such as fever, abdominal pain, and uterine tenderness, and gestational age confirming the second trimester.

** This is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.