This guide addresses CPT® coding for maternity care services under the new code set that takes effect January 1, 2027. The American Medical Association restructured maternity care coding for 2027: the global OB package, antepartum-only, delivery-only, and postpartum-only codes used since 1995 are deleted, and maternity care is now reported using four distinct pieces — evaluation and management (E/M) codes for antepartum and postpartum visits, new labor management codes, and two pairs of delivery codes.