Maternal care for vertical scar from previous cesarean del

This code signifies antenatal care provided to a pregnant patient whose uterus has a vertical scar resulting from a prior cesarean section. A vertical uterine incision carries a higher risk of uterine rupture in subsequent pregnancies compared to a low transverse incision.

Apply this code when documentation explicitly states a history of a previous cesarean delivery with a vertical uterine incision, and the current pregnancy is being managed with this specific risk factor in mind. This is typically used for ongoing prenatal care encounters where the vertical scar is a pertinent factor in management.

• Do not confuse this with a low transverse uterine scar (O34.211) or an unspecified type of previous cesarean scar (O34.219).
• Always sequence this code after a code for the current pregnancy, such as from category Z3A.
• Ensure the medical record clearly specifies "vertical" uterine incision, not just "previous C-section."