Oth disrd of amniotic fluid and membrns, second tri, fetus 3

This code signifies a maternal diagnosis of an abnormal condition affecting the amniotic fluid or membranes, not elsewhere classified, occurring during the second trimester of pregnancy. It specifically indicates that the third fetus in a multiple gestation pregnancy is affected by this disorder. Examples include conditions like oligohydramnios or polyhydramnios that don't fit more specific codes, or other membrane abnormalities.

Apply this code when documentation clearly identifies a specified, but not otherwise classified, disorder of the amniotic fluid or membranes in a pregnant patient during her second trimester. The medical record must explicitly state that the third fetus in a multiple gestation is the one experiencing the disorder. Supporting documentation includes ultrasound reports, physician notes detailing the specific amniotic fluid or membrane abnormality, and confirmation of gestational age and fetal count.

• Ensure the documentation specifies "fetus 3" in a multiple gestation; otherwise, a different final character (e.g., fetus 1, fetus 2, or unspecified) would be appropriate.
• Verify the gestational age falls within the second trimester (weeks 14 through 27, 6 days).
• Do not use this code if a more specific code for an amniotic fluid or membrane disorder (e.g., polyhydramnios, oligohydramnios, premature rupture of membranes) is available.