2027 Delivery Codes Explained: 59431, 59432, 59502, 59503 and 59504 Replace 59400 and 59510

For decades, the delivery codes most OB/GYN practices used were embedded in packages: 59400 for routine obstetric care with vaginal delivery, 59510 for cesarean, 59610 and 59618 for VBAC scenarios. On January 1, 2027, those packages — and the delivery-only and delivery-plus-postpartum variants — are deleted. In their place, CPT 2027 introduces a smaller set of stand-alone delivery codes reported once per delivery event.

Here's what the new delivery codes are, what they include, how they map from today's codes, and what to do now.

The new delivery codes

Related new codes:

What the delivery codes include

According to the AMA's guidance:

• Routine same-day postpartum care is included in the delivery code. Postpartum care on later days is reported separately.
• First- and second-degree laceration or episiotomy repair by the delivering clinician is part of the delivery. Repair of a first- or second-degree laceration by a different, unrelated clinician is reported with 59300.
• Third- and fourth-degree repairs are separately reportable with 59433 and 59434 alongside the delivery code.

Crosswalk: from 2026 codes to 2027 reporting

This crosswalk is a planning tool, not official guidance. Confirm each element in the CPT 2027 codebook and your payers' policies.

Primary vs. repeat cesarean

The new cesarean codes separate primary (59502) from repeat (59503) cesarean deliveries. That's new information for payers, and documentation must support it: a repeat cesarean requires a documented history of previous cesarean delivery. For diagnosis coding, the reason for the cesarean — for example O34.211 (low transverse scar) or O34.212 (vertical scar) from a previous cesarean — remains the principal diagnosis on the delivery claim. See our guide to sequencing multiple O codes.

When a trial of labor after cesarean ends in a cesarean, published summaries indicate the cesarean code is reported (not the VBAC code), along with labor management for the labor that occurred.

Multiple births

The AMA states the cesarean codes are reported once per delivery event. For vaginal births of multiples, and for mixed vaginal-and-cesarean deliveries of twins, follow the CPT 2027 guidelines on how many delivery codes to report — published summaries indicate a vaginal delivery code per vaginally delivered baby. Labor management for multiples is complex by default and reported once per date.

Postpartum care after delivery

Under the new structure:

• Same day as delivery: included in the delivery code.
• Later inpatient days: subsequent hospital E/M codes, then hospital discharge day management on the discharge date.
• After discharge: office or telehealth E/M visits for postpartum care.

This is a major change for practices used to a single postpartum visit bundled into the global fee. Every postpartum visit will need documentation that supports its E/M level, and payers may apply copays or deductibles.

Other delivery-related services

• Tubal sterilization at cesarean remains separately reportable with its own code, subject to payer rules and federal/state consent requirements.
• Uterine tamponade for postpartum hemorrhage is now reportable with 59623.
• External cephalic version (59412) and other antepartum procedures remain separately reportable.

What OB/GYN practices should do now

1. Load the new codes into your PM system for 2027 dates of service, and inactivate deleted codes for those dates.
2. Rebuild charge capture so delivery, labor management by date, and each postpartum visit generate charges.
3. Update delivery documentation templates to capture primary vs. repeat cesarean, laceration degree and repairing clinician, and hemorrhage management.
4. Rebuild your fee schedule for the new codes — see fee schedule optimization.
5. Contact your top payers about payment for the new codes and how they'll handle pregnancies that started in 2026.
6. Inventory open pregnancies with expected delivery dates in 2027 and track antepartum visits by date and payer.
7. Train front-desk and billing staff on per-visit cost-sharing for prenatal and postpartum care.

The bigger picture

The new delivery codes are one part of a broader restructuring that moves obstetric billing from a single bundled claim to phase-based reporting. Practices will submit more claims, earlier — which should help cash flow — but every encounter will need to stand on its own documentation. For the complete picture, read our 2027 maternity transition guide.

How the new codes change the delivery claim itself

Under global billing, the delivery claim was often the only obstetric claim for a pregnancy — submitted weeks after the birth with a single package code. In 2027, the delivery claim becomes one of many. A typical vaginal birth might now generate:

• A prenatal E/M claim for each antepartum visit, submitted as they happen
• A labor management code for each calendar date of labor
• The delivery code on the date of birth
• Subsequent hospital care and discharge day management on later inpatient days
• Postpartum office or telehealth visits

That has practical consequences for billing teams. Claims for the same pregnancy may go to different payers if coverage changes. Each claim has its own timely-filing clock. Rendering providers may differ from claim to claim within the same group. And payers will be able to see the full pattern of a pregnancy's care across many claims instead of one, which makes consistent documentation and diagnosis coding more important.

A sample 2027 claim timeline

Exact codes depend on documentation, the final CPT 2027 guidelines and payer policy — but the shape of the timeline is what billing workflows need to be ready for.

Questions to ask your payers before January

• How will you reimburse 59431, 59432, 59502, 59503 and the labor management codes?
• Will prenatal and postpartum E/M visits be subject to patient cost-sharing?
• Do you require the TH modifier or specific diagnosis codes on prenatal and postpartum visits?
• How will you handle pregnancies with prenatal care in 2026 and delivery in 2027?
• Will any prior notification or pregnancy registration requirements change?

Get the answers in writing where you can. They'll drive your claim scrubber rules for 2027.

Get ready with help from specialists

We're helping OB/GYN practices prepare for the 2027 maternity codes now — from charge capture and templates to payer outreach. Send us a WhatsApp message for a free readiness review, or learn more about our global maternity billing service.

Sources: American Medical Association, "FAQs: CPT 2027 Maternity Care Services code changes" and "AMA releases CPT 2027 code set" (2026). Descriptors are summarized; consult the CPT 2027 Professional Edition for official language.