2027 Substrate Maternity Resource Center

Global billing for maternity is ending.

Today, maternity care is largely billed using a "global" code. Beginning January 1, 2027, CPT revisions will allow care to be reported more granularly at the service level. January 1 is the CPT effective date, but each payer might choose to transition billing on their own timeline.

The 2027 Substrate Maternity Resource Center tracks which of your payers are moving off global maternity billing, so you can adapt proactively. For more background, see the AMA CPT 2027 maternity care services update.

197Tracked Payers

54confirmed 2027 guidance

43proposed but not final

25pending payer guidance

16awareness notice only

59policies unchanged

Current As Of October 2026

Billing tools

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Standardized biller rubric

What to bill, by payer

Visit-date and EDD triggers, visit-count rules, codes to bill, modifiers, diagnosis and Category II requirements, cost share, and payer contacts, each tied to the verbatim source passage.

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Encounter billing calculator

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Enter the state, payer or plan, date of service, delivery date or EDD, visit number, and service phase to get that payer's own maternity billing instruction with its source.

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SelectConfirmed 2027 guidance

Blue Cross Blue Shield of Wyoming

WYTransition: No early transition date stated

For deliveries expected on or after 2027-01-01, BCBSWY says not to bill global maternity codes; bill antepartum, labor, delivery, and postpartum services separately.

Published: 2026-06-19
Transition starts: No early transition date stated
Billing starts: January 1, 2027
Evidence checked: 2026-09-08

Billing notes and scope

Scope: BCBSWY provider-manual notice. The notice does not identify a commercial, Medicare Advantage, or other line of business.

Transition: No prenatal visit-count, modifier, diagnosis, or cross-year grace-period detail was located in the public notice.

Global billing: Continue the applicable global package for deliveries expected through 2026-12-31 when responsible for the complete package. Do not use global codes for deliveries expected on or after 2027-01-01.

Do not automatically apply this brand-level notice to a separately identified Medicare Advantage record without plan confirmation.

Frequently asked questions

What you need to know

Is global billing for maternity ending everywhere at once?

No. CPT revisions take effect January 1, 2027, but that is not each payer's billing date. Search tracked payers to see who published a transition date, whose guidance is still proposed, and whose policies are unchanged.

What is changing about maternity billing in 2027?

Today, maternity care is largely reported using a global code. Beginning January 1, 2027, CPT revisions will allow care to be reported more granularly at the service level. Whether and when a payer moves off global billing depends on that payer's own policy.

How do I see what’s changing by payer in my market?

Search the 2027 Substrate Maternity Resource Center by payer, then open the primary policy. Confirm the transition and billing dates, and recheck the source before submitting claims. This is policy intelligence, not coding or legal advice.

Can I download policies for multiple payers?

Yes. Select payer cards and download an offline source packet containing the policy summary plus links to the maternity policy and the payer policy homepage. The source documents remain on each payer's website.

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What to bill, by payer

Check a single encounter

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Blue Cross Blue Shield of Wyoming

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What you need to know