OB/GYN Medical Billing & Coding Alert
Starting January 1, 2027, Arizona’s AHCCCS program will no longer accept global maternity codes. Report antepartum care, labor management, delivery, and postpartum care separately. An FAQ the agency published on October 1, 2026 walks through how to bill prenatal visits that happen in 2026 for patients who aren’t due until 2027.
OB/GYN practices, midwives, family practices providing maternity care, birth centers, FQHCs, RHCs, and billing teams should prepare for the national coding change and review billing guidance from AHCCCS and each Arizona managed care plan.
What the AHCCCS Guidance Establishes
The Maternity Care Unbundling FAQ explains the transition and its interim prenatal billing approach.
AHCCCS’s October coding newsletter also reported that new codes were under review for implementation on January 1, 2027. Guidance had been sent to health plans, with further information expected after internal review. These statements do not confirm that every plan’s final billing instructions were available.
The Four Maternity Care Phases
The AMA’s coding overview explains how the new maternity codes referenced in the AHCCCS announcement will be reported:
- Antepartum care: Pregnancy assessment and management before labor, reported through appropriate E/M services under the 2027 framework.
- Labor management: Professional assessment and management during labor, reported separately from delivery.
- Delivery: Professional care associated with vaginal or cesarean birth.
- Postpartum care: Assessment and management after birth. Routine postpartum care on the delivery date is included in delivery coding, as described in the AMA maternity coding guidelines.
Arizona’s 2026 Prenatal Billing Instructions
The expected delivery date determines the interim approach for prenatal care furnished in 2026. The service date determines when the FAQ directs providers to use 2027 coding requirements.
|
Scenario |
AHCCCS guidance |
|
Delivery expected before January 1, 2027 |
Follow current AHCCCS and national guidance, including applicable global maternity codes. |
|
Prenatal services furnished in 2026; delivery expected on or after January 1, 2027 |
Report 59425 for 4–6 prenatal visits or 59426 for seven or more visits, as applicable. |
|
Fewer than four prenatal visits in the applicable 2026 transition scenario |
Follow current CPT coding guidance. |
|
Any maternity service furnished on or after January 1, 2027 |
Follow 2027 maternity care coding requirements. |
A patient with six qualifying prenatal visits in 2026 and a February 2027 due date falls under 59425. Don’t add 2027 visits to the 2026 count.
For more detail, see BillingFreedom’s CPT 59426 reference, which covers antepartum-only reporting for seven or more visits.
The FAQ leaves some cases unanswered, such as an unexpectedly changing delivery date or delivery and postpartum care that span the transition. Check with AHCCCS and the patient’s plan for those.
FQHC/RHC Reporting and Reimbursement
According to the FAQ, FQHCs and RHCs will report the new maternity codes alongside T1015 when they provide OB services. Check the encounter-billing instructions that apply to you before you set up your claims.
The October FAQ said fee-for-service rates would follow CMS’s release of RVUs. Rates may have been published since then, so check the AHCCCS physician fee schedules for the date of service. Confirm payment rates separately with each managed care plan.
2026 Maternity Codes for Reference
Global billing combines specified maternity services in one package. Partial-care billing reports only the care provided. BillingFreedom’s CPT 59400 guide explains what the global vaginal-delivery package includes.
The AMA includes 59400, 59425, and 59426 on its list of codes being deleted for 2027. The guides are useful for 2026 services and for care that runs across both years. Check the billing rules for each date of service, since the guides do not allow you to use a deleted code for services provided in 2027.
Frequently Asked Questions
Does a cost-neutral transition mean every practice will be paid the same?
No. AHCCCS intends the overall transition to be cost-neutral. Payment for each patient may vary based on the number of prenatal and postpartum visits, the complexity of labor management, and the delivery method.
Does maternity unbundling apply to doula services?
The FAQ excludes non-medical complementary services such as doula care from this coding change. Check separate AHCCCS and plan policies for doula coverage and billing.
What Does This Mean for Your Practice as Maternity Billing Changes in 2027?
- Review prenatal visits from 2026. Identify patients due on or after January 1, 2027, and count their completed 2026 prenatal visits separately. Use CPT 59425 for 4–6 visits and CPT 59426 for seven or more. For fewer than four visits, follow the applicable CPT guidelines.
- - Prepare for 2027 coding. Update documentation and billing to report maternity care separately, using the codes applicable to each service date from January 1, 2027.
- - Check managed care rules. Review each plan’s billing, authorization, payment, and transition requirements. For situations not covered in the FAQ, confirm instructions with AHCCCS and the patient’s health plan.
- If you bill for an FQHC or RHC, confirm how to report the new maternity codes with T1015. Birth centers must review the professional and facility billing requirements on their own, since the two are handled separately.
- - Review payment rates. Check fee-for-service and managed care rates before estimating revenue. AHCCCS aims for a cost-neutral transition, but reimbursement may still vary.
Keeping Your Maternity Billing on the Right Track
BillingFreedom’s Arizona OB/GYN billing services cover documentation checks, coding reviews, and claim submission. For a second set of eyes on how your practice tracks prenatal visits or handles payer-specific billing, you can contact our team today.
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