Oth mult gest,unab to dtrm 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 (chorionicity) and amniotic sacs (amnionicity) cannot be determined. The gestational age is also not specified in the documentation.

Apply this code when documentation clearly indicates a multiple gestation (e.g., "multiple pregnancy," "gestation with more than one fetus") but lacks details on chorionicity and amnionicity, and the trimester is not recorded. This is often used when initial ultrasound findings are inconclusive regarding the placental and amniotic sac arrangement.

• Ensure documentation explicitly states "other specified multiple gestation" or provides enough detail to rule out other specific types.
• Avoid using this code if chorionicity, amnionicity, or trimester can be determined from available records; look for more specific codes.
• Always sequence this code as a primary diagnosis when it represents the main reason for the encounter related to the multiple gestation.