Oth multiple gest, unsp num plcnta & amnio sacs, unsp tri

This code signifies a pregnancy involving more than one fetus where the specific type of multiple gestation (e.g., twins, triplets) is known, but the number of placentas and amniotic sacs has not been determined or documented. It applies to any stage of pregnancy when this information is unknown.

Use this code when documentation indicates a multiple gestation (e.g., "multiple pregnancy," "twin gestation") but lacks details regarding chorionicity (number of placentas) and amnionicity (number of amniotic sacs). This is often an interim code used early in pregnancy before a definitive ultrasound can establish these details.

• Avoid using this code if chorionicity and amnionicity are clearly documented (e.g., "dichorionic-diamniotic twins").
• This code should be followed by codes for the specific type of multiple gestation if known (e.g., O30.0- for twin pregnancy).
• Always strive for greater specificity regarding chorionicity and amnionicity as soon as the information becomes available from diagnostic imaging.