Maternity Billing Codes Are Changing in 2027: How OBGYN Practices Can Prepare Now
New codes are replacing global obstetric billing
For decades, obstetric billing has run on a straightforward model: one global code, one lump-sum payment, one reimbursement at the end of pregnancy. Starting January 1, 2027, that model is scheduled to end.
The American Medical Association is eliminating global pregnancy billing codes and replacing them with itemized codes. The new codes are intended to reflect team-based obstetric care and support transparency and data quality.
For OBGYN practices, new codes also mean new documentation requirements and an updated revenue cycle workflow. Here’s a breakdown of what’s ahead and what your practice can do before the changes hit.
What’s changing with obstetric billing codes in 2027
The AMA’s overhaul aims to address issues with bundled billing. The new obstetric billing model is designed to promote quality measurement throughout pregnancy and to align reimbursement with the care actually delivered. In all, there are 35 total code changes effective January 1, 2027 — 17 deleted codes, 12 new codes, and 6 revised codes.
The new framework unbundles pregnancy care into four distinct categories: antepartum care billed via E/M services, labor management codes that separate straightforward from complex cases, delivery-only codes for vaginal and cesarean deliveries, and postpartum care billed via E/M services. Each phase has its own codes, documentation requirements, and revenue implications.
On the reimbursement side, the AMA’s Specialty Society RVS Update Committee (RUC) submitted its recommendations to CMS in February 2026. CMS will propose relative values for the new codes, with final values expected to be published in early November 2026 and implemented on January 1, 2027. If CMS adopts the recommendations, the new RVUs are expected to be budget-neutral.
How the new obstetric billing framework is structured
Starting January 1, 2027, pregnancy care is scheduled to be billed across four distinct phases.
Antepartum care
Current antepartum codes will be deleted. Instead, routine prenatal visits will be billed individually with E/M codes based on the location and type of care provided. Standard E/M reporting rules will apply. There is no fixed level of complexity for patients across antepartum visits, and antepartum and fetal invasive procedures may be billed and reported separately. To help payers identify pregnancy-related encounters:
- Use ICD-10-CM pregnancy codes (Z34- or O chapter codes)
- Add the “TH” modifier, where applicable, to indicate maternity-related services
- Modifier 25 may be added to indicate a significant, separately identifiable service
Labor management
Once labor begins, hospital E/M services end, and labor management will be billed daily. Planned cesareans should not have labor management codes. There are separate codes for straightforward and complex cases, with criteria established by the AMA. There are four new labor management codes:
- 59080: Initial day labor management; straightforward, per day
- 59081: Initial day labor management; complex, per day
- 59082: Subsequent day labor management; straightforward, per day
- 59083: Subsequent day labor management; complex, per day
Delivery
Delivery becomes its own standalone billing event. Vaginal delivery codes include delivery of the placenta, repair of first- or second-degree lacerations, and routine day-of postpartum care. Cesarean delivery codes include incision, delivery, placenta, and closure. For multiples, only report one delivery code per delivery, unless both vaginal and cesarean deliveries occur. The following are new codes for delivery and related procedures:
- 59431: Vaginal delivery, with or without episiotomy
- 59432: Vaginal delivery, with or without episiotomy; after previous cesarean delivery
- 59414: Delivery of placenta only, separate procedure (Do not report 59414 in conjunction with 59431, 59432)
- 59300: Repair of first or second-degree episiotomy or laceration, by other than attending physician or other qualified health care professional performing vaginal delivery care, separate procedure (Do not report 59300 in conjunction with 59431, 59432)
- 59502: Cesarean delivery; primary
- 59503: Cesarean delivery; repeat
- 59504: Subtotal or total hysterectomy performed at the same encounter as a cesarean
- 59433: Repair of episiotomy or laceration; third-degree laceration
- 59434: Repair of episiotomy or laceration; fourth-degree laceration
Postpartum
Current postpartum codes will be deleted, and postpartum care provided on the same calendar date of delivery is included with the delivery code. Inpatient maternal postpartum care on the days after delivery will be billed individually using E/M codes, just like antepartum care. Coverage durations for outpatient postpartum care vary by policy. There’s also a new code for postpartum hemorrhage management with uterine tamponade. When billing postpartum care, note the following:
- Use E/M codes for inpatient and outpatient postpartum care
- Include modifiers as appropriate
- 59623: Uterine tamponade (e.g., balloon, catheter, vacuum, or packing material)
Why 2026 is the year to act
The 2027 code changes require more than a superbill update. Here’s what’s at stake if your practice isn’t ready.
The revenue risk
Under the new framework, every prenatal encounter must meet E/M criteria individually. Without it, that claim could be at risk. An EHR that stays current with code libraries and suggests codes for your approval can help reduce that exposure. But if your software can’t support your team across the full span of obstetric care, your practice could face claim denials and cash flow disruption. Patients who begin care before 2027 and deliver after add another layer of complexity — mid-pregnancy transitions need to be managed cleanly, or they could become a billing problem.
The documentation burden
Every prenatal and postpartum visit will need documentation that supports medical decision-making or time-based E/M criteria. ICD-10 pregnancy staging codes must be applied correctly at each individual encounter. Modifiers need to be applied consistently across visits. That’s a meaningful lift for practices that have operated on a bundle-and-bill model for years and could lead to revenue leakage if templates and workflows aren’t updated before the deadline.
The shrinking timeline
The January 2027 deadline isn’t as far away as it sounds. The 2026 runway can serve as a buffer for staff training, workflow development, and payer contract review, but year-end will be here before long. Commercial and Medicaid payers may each have their own transitional billing rules, so verifying coverage guidelines before the deadline is part of the prep work. Waiting until late 2026 means learning the new system while your revenue cycle is already depending on it.
How ModMed is getting OBGYN practices ready
ModMed® isn’t watching these changes from the sidelines. We’re already designing our EHR workflows and documentation templates around the 2027 code framework. Our teams are staying on top of the new E/M requirements, daily labor management codes, and delivery-only codes. ModMed RCM Services are also prepared to help your practice adjust to new billing workflows with advanced technology and specialist support.
Spend 2026 building a foundation instead of learning new rules the day they go live. With enough time, your staff can train, templates can be updated before claims start flowing through the new code structure, and mid-pregnancy transitions can be addressed before they become billing problems. Teams that make the switch in 2026 can arrive at the January 2027 deadline with a head start. Nigel Spier, MD, FACOG, ModMed’s OBGYN Medical Director, puts it plainly:
“The transition to the new obstetrical billing in 2027 represents a fundamental shift in how OBGYNs will be compensated for their care. Those who lack an EHR built for the new coding requirements risk leaving revenue behind.”
Transition to ModMed before the deadline
The framework is defined, the codes are set, and the timeline is fixed. For OBGYN practices, the question isn’t whether these changes are coming — it’s whether your systems, your staff, and your workflows will be ready when they do. A 2026 transition gives your practice the runway to get there. Talk to a ModMed specialist to learn what a smooth start to 2027 could look like for your practice.
This blog is intended for informational purposes only and does not constitute legal or medical advice. Please consult with your legal counsel and other qualified advisors to ensure compliance with applicable laws, regulations, and standards.
ModMed EHR does not take the place of licensed healthcare professionals and medical coders. Users and medical practices are responsible for final decisions on how to bill and code.
This page includes “forward-looking statements,” including information about solutions and features that are not yet available. The decision and timing regarding release and development of solutions and features may be subject to change. Actual solutions and features may differ materially from any of those expressed here or in other forward-looking statements. Any purchasing decisions made by you should be solely based on ModMed’s existing solutions and functionality.
