NY MedicaidHigh ImpactBilling Codes

Obstetric Billing Changes for Prenatal Services Related to Upcoming Global Obstetric Fee Changes

Published May 24, 2026Effective June 1, 2026

AI Summary

Effective for prenatal care starting June 1, 2026, New York Medicaid requires providers to use E/M CPT codes with TH modifier, pregnancy-related O or Z ICD-10 codes for all prenatal visits, and Category II CPT code 0500F for initial prenatal visits. Current billing practices continue for established prenatal care until December 31, 2026.

Action Required

By June 1, 2026: Billing team must update system to append TH modifier to all E/M CPT codes for prenatal visits. Update encounter forms to require pregnancy-related O or Z ICD-10 diagnostic codes for all prenatal visits. Configure system to require Category II CPT code 0500F for initial prenatal visits. Train providers on new coding requirements. For patients with established prenatal care before June 1, 2026, continue current billing practices through December 31, 2026.

Plan Types

Medicaid

States

NY

Specialties

ob-gyn, family-medicine