Oligohydramnios, third trimester, fetus 5

This code signifies a reduced amount of amniotic fluid surrounding the fetus during the third trimester of pregnancy, specifically when there are five fetuses present. Oligohydramnios can lead to complications such as fetal growth restriction, umbilical cord compression, and pulmonary hypoplasia.

Apply this code when documentation confirms a diagnosis of oligohydramnios in a multifetal pregnancy with five fetuses, and the gestational age is within the third trimester (28 weeks 0 days gestation until delivery). Supporting documentation should include ultrasound reports detailing amniotic fluid index (AFI) or deepest vertical pocket (DVP) measurements, along with the estimated gestational age and number of fetuses.

• Ensure the documentation clearly specifies the number of fetuses as five; otherwise, a different "X" character for the fetus number should be selected.
• Verify the gestational age falls within the third trimester; codes for first or second trimester oligohydramnios are distinct.
• Sequence this code as a secondary diagnosis when the primary reason for the encounter is related to the management of the oligohydramnios or its complications.