Trp preg, unable to dtrm num plcnta & amnio sacs, second tri

This diagnosis code signifies a pregnancy involving three fetuses where the number of placentas (chorionicity) and amniotic sacs (amnionicity) cannot be determined during the second trimester. This lack of determination is often due to imaging limitations or the stage of pregnancy.

Use this code when documentation clearly indicates a triplet gestation in the second trimester, but ultrasound or other diagnostic imaging is inconclusive regarding whether the fetuses share placentas or amniotic sacs. This is common when early first-trimester scans that could definitively determine chorionicity/amnionicity were not performed or were suboptimal.

• Ensure the medical record explicitly states "triplet pregnancy" and "second trimester."
• Look for documentation indicating an inability to determine chorionicity and amnionicity, such as "undetermined," "unable to visualize," or "not specified."
• Do not use this code if chorionicity and amnionicity are known, even if it's a triplet pregnancy in the second trimester; more specific codes exist for those scenarios.