January 1, 2027, contingent on whether CMS finalizes the proposed G-codes
Billing
January 1, 2027 — contingent reporting change
Published
October 1, 2026
If CMS finalizes the proposed 2027 maternity G-codes, UnitedHealthcare says commercial providers should report those G-codes. If CMS does not, dates of service on or after January 1, 2027 leave global obstetric reporting: 2026 services stay on CPT 2026, including 59425, 59426, or an E/M code, and 2027 antepartum and postpartum services use an E/M code, modifier TH, and an obstetric diagnosis. UnitedHealthcare says it may revise this if the final CMS rule differs. This does not replace the current global-package policy for dates before 2027.
Services on or before December 31, 2026 stay on CPT 2026, including 59425, 59426, or an E/M code. The 2027 path is phase-based reporting only if CMS does not finalize the proposed G-codes.
The current global-package policy still applies for dates before 2027. The October 2026 bulletin does not replace it for those dates.
UnitedHealthcare Commercial reimbursement bulletin. Not Dental, Vision, Community Plan, Medicare Advantage, or AARP supplemental.
Proposed, not confirmed. If CMS finalizes the proposed 2027 maternity G-codes, UnitedHealthcare says commercial providers should report those G-codes. If CMS does not, dates of service on or after January 1, 2027 leave global obstetric reporting: 2026 services stay on CPT 2026, including 59425, 59426, or an E/M code, and 2027 antepartum and postpartum services use an E/M code, modifier TH, and an obstetric diagnosis. UnitedHealthcare says it may revise this if the final CMS rule differs. This does not replace the current global-package policy for dates before 2027. No 2027 notice was found. No UnitedHealthcare Medicare Advantage obstetrical reimbursement policy or 2027 implementation date was found in the public MA reimbursement index.
What do I bill UnitedHealthcare for prenatal visits in 2027?
This is proposed, not a confirmed billing rule. If CMS finalizes the proposed 2027 maternity G-codes, UnitedHealthcare says commercial providers should report those G-codes. If CMS does not, dates of service on or after January 1, 2027 leave global obstetric reporting: 2026 services stay on CPT 2026, including 59425, 59426, or an E/M code, and 2027 antepartum and postpartum services use an E/M code, modifier TH, and an obstetric diagnosis. UnitedHealthcare says it may revise this if the final CMS rule differs. This does not replace the current global-package policy for dates before 2027. The current global-package policy still applies for dates before 2027. The October 2026 bulletin does not replace it for those dates. Services on or before December 31, 2026 stay on CPT 2026, including 59425, 59426, or an E/M code. The 2027 path is phase-based reporting only if CMS does not finalize the proposed G-codes. No 2027 prenatal billing instruction was found. No UnitedHealthcare Medicare Advantage obstetrical reimbursement policy or 2027 implementation date was found in the public MA reimbursement index. Unknown; verify the member-specific plan before submission.
Has UnitedHealthcare published 2027 maternity guidance?
UnitedHealthcare has a proposed 2027 change, not confirmed guidance. Last checked October 6, 2026. Source: UnitedHealthcare Commercial Reimbursement Policy Update Bulletin: October 2026. No. A 2027 maternity notice from UnitedHealthcare Medicare Advantage was not found. Last checked September 4, 2026. Source: Public reimbursement policy index; no maternity policy located.
The information provided on this page is for general informational purposes only and does not constitute billing, coding, or reimbursement advice. Nothing on this page should be relied upon as a substitute for clinician assessment, professional billing guidance, or as a definitive statement of any payor's billing requirements or policies.
Payor agreements, fee schedules, and billing policies vary and are subject to change. Before submitting any claims related to maternity care services, including claims affected by the 2027 CPT code revisions, please consult the applicable payor agreements, coverage policies, and billing guidelines to confirm current requirements for their specific payor contracts.
Substrate makes no representation or warranty regarding the accuracy, completeness, or timeliness of the payor-specific information presented here. Providers are solely responsible for ensuring that all claims are submitted in accordance with applicable payor requirements, and Substrate assumes no liability for claim denials, underpayments, or other adverse outcomes arising from reliance on this information.
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