Matern care for disproprtn d/t unusually large fetus, fts2

This code signifies antenatal care provided to a pregnant patient due to a disproportion between the fetal size and the maternal pelvis, specifically when the disproportion is attributed to an unusually large fetus (macrosomia) and it is the second fetus in a multiple gestation. This condition can complicate labor and delivery, potentially necessitating interventions such as a cesarean section.

Apply this code when documentation indicates maternal care for a twin pregnancy (or higher order multiple gestation) where the second fetus is identified as unusually large, leading to a concern for cephalopelvic disproportion (CPD) or fetopelvic disproportion (FPD). Supporting documentation should include ultrasound findings confirming macrosomia of the second twin and a physician's assessment of disproportion.

• Ensure documentation clearly specifies "fetus 2" as the unusually large fetus causing the disproportion.
• Do not confuse with codes for disproportion due to other maternal or fetal factors.
• Sequence this code as a secondary diagnosis following the primary obstetric code for the encounter.