Oligohydramnios, first trimester, fetus 3

This code signifies a reduced amount of amniotic fluid surrounding the fetus during the first trimester of pregnancy, specifically when there are three fetuses present. Oligohydramnios can indicate underlying maternal or fetal issues affecting fluid production or circulation.

Apply this code when documentation clearly states oligohydramnios diagnosed in the first trimester of a triplet pregnancy. Supporting documentation would include ultrasound reports confirming reduced amniotic fluid volume and the presence of three fetuses.

• Ensure the documentation specifies "first trimester" and "fetus 3" to accurately assign this code.
• Do not confuse with codes for oligohydramnios in later trimesters or with different fetal counts.
• Always sequence this code as a secondary diagnosis if the primary reason for the encounter is a complication directly related to the oligohydramnios.