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

This code describes a pregnancy involving three fetuses where the number of placentas (chorionicity) and amniotic sacs (amnionicity) cannot be definitively determined. This uncertainty typically arises from limitations in ultrasound imaging or late presentation in the third trimester.

Use this code when documentation clearly indicates a triplet gestation in the third trimester, but the chorionicity and amnionicity are not specified or could not be assessed. This often occurs when initial prenatal care was delayed, or imaging quality was insufficient to differentiate placental and amniotic sac structures.

• Ensure the documentation explicitly states "triplet pregnancy" and "third trimester."
• Only use this code when chorionicity and amnionicity are truly "unable to determine"; do not use if they are simply not documented but could have been assessed.
• Always sequence this code as the primary diagnosis for the triplet pregnancy, followed by any associated complications.