Oligohydramnios, second trimester, fetus 5

This code signifies a reduced amount of amniotic fluid surrounding the fifth fetus during the second trimester of a multiple gestation pregnancy. Oligohydramnios can indicate underlying fetal or maternal issues, such as renal anomalies, placental insufficiency, or premature rupture of membranes.

Apply this code when documentation confirms oligohydramnios specifically affecting the fifth fetus in a multifetal pregnancy during the 14th through 27th week of gestation. This diagnosis is typically made via ultrasound measurement of the amniotic fluid index (AFI) or deepest vertical pocket (DVP).

• Ensure the documentation clearly specifies "fetus 5" and "second trimester" for accurate assignment.
• Do not confuse with oligohydramnios affecting other fetuses (O41.02X0-O41.02X9) or occurring in different trimesters.
• Code any associated maternal or fetal conditions contributing to the oligohydramnios.