2027 Maternity CPT Code Changes: What’s New, what's deleted, and how to bill it

The 2027 maternity CPT code changes take effect on January 1, 2027, and they completely replace the way maternity care is billed. The global OB package is being retired, new maternity CPT codes are being introduced, and prenatal, delivery, and postpartum services will be reported separately instead of as one bundled claim.

For OB/GYN practices, this isn't just a coding update. It changes how pregnancies are documented, billed, and reimbursed. This guide explains what changed, which maternity CPT codes are affected, and what your practice should do before the new rules take effect.

Why the Global OB Package Is Being Retired

The global OB package assumed one practice handled the whole pregnancy. That's often not how it works now.

A patient may start prenatal care at one practice, transfer to another facility for a high-risk pregnancy, have a different clinician manage labor, and see someone else after delivery. Several physicians, hospitals, specialists, and other qualified healthcare professionals can be involved in a single pregnancy.

One bundled code can't show who did what.

What Maternity CPT Codes Are Being Deleted in 2027

Seventeen maternity care codes go away.

The deleted codes are 59050, 59400, 59409, 59410, 59425, 59426, 59430, 59510, 59514, 59515, 59525, 59610, 59612, 59614, 59618, 59620, and 59622.

None of them are valid for dates of service on or after January 1, 2027. Claims systems and clearinghouses are expected to reject them.

Don't carry your 2026 maternity billing setup into 2027. The global maternity structure is the piece going away, and it's the biggest change in the update.

What is changing in the 2027 maternity CPT codes

Deleting 17 codes is only half the update. The other half is what replaces them.

Starting January 1, 2027, maternity care gets reported in four separate phases instead of one bundle: antepartum care, labor management, delivery, and postpartum care.

Antepartum and postpartum visits move to standard E/M codes, picked by the encounter. Labor management and delivery get their own new codes.

Twelve new codes come in: 59080, 59081, 59082, 59083, 59431, 59432, 59433, 59434, 59502, 59503, 59504, and 59623.

Antepartum care

Every antepartum code is deleted. 59425 and 59426 are gone, and so is the antepartum component of every global code.

Each prenatal encounter now gets the E/M code that matches where the visit happened and what happened in it:

• Office and outpatient visits: 99202 to 99215

• Telemedicine visits: 98000 to 98015, with 98016 for a virtual check-in

• Home or residence visits: 99341 to 99350

• Inpatient and observation encounters: 99221 to 99236

• Critical care: 99291, 99292

Standard E/M selection rules apply, so each visit is leveled on medical decision making or total time. Pregnancy confirmation can be reported with the appropriate E/M or preventive medicine code for the setting.

Two practical notes. Payers will identify these encounters as maternity-related through ICD-10-CM pregnancy diagnosis codes, so your Z34 and O-chapter coding suddenly carries much more weight. And antepartum procedures and fetal invasive services stay separately reportable alongside the E/M visit.

If a pregnant patient is admitted as an inpatient or to observation for something other than labor management during an encounter at another site, the service at the initial site can be reported separately, with modifier 25 on the other E/M service when appropriate.

Labor management

Labor management is reported by calendar day under the new structure. A planned cesarean without labor management does not automatically create a labor-management service.

Four new codes, split two ways:

59080 – Initial day labor management, straightforward

59081 – Initial day labor management, complex

59082 – Subsequent day labor management, straightforward

59083 – Subsequent day labor management, complex

Labor management may include activities such as interim examinations, interpretation of physiologic data, and management of labor induction or augmentation.

Rules that will cause denials if you miss them

• Report only the highest level performed on a calendar date. If labor starts straightforward and turns complex the same day, report complex only.

• Don't report 59080 to 59083 with 99221 to 99236 on the same date when the same physician or group manages both the hospital care and the labor.

• Initial day is reported once per facility admission, unless the patient transfers to a new facility or a different specialty assumes care for medical necessity.

• Multiple gestation gets one labor management code per calendar date, regardless of the number of fetuses.

• A scheduled cesarean where the patient never labors gets no labor management code at all.

• A continuous bedside visit spanning midnight is one service, reported on one of the two dates.

Interim exams, partograms, tocometric data, vital signs, pulse oximetry, and induction or augmentation methods are all included in labor management and aren't separately reportable.

Delivery

The new delivery codes cover delivery care only. They don't include antepartum, labor management, or postpartum care beyond the delivery date.

59431 -Vaginal delivery, with or without episiotomy

59432 -Vaginal delivery, after previous cesarean delivery (VBAC)

59502 – Primary cesarean delivery

59503 – Repeat cesarean delivery

First and second degree laceration or episiotomy repair is included in 59431 and 59432. Third and fourth degree repair is not, and gets reported separately with 59433 and 59434 alongside the delivery code.

Hysterectomy after cesarean is now a stand-alone code, 59504, with modifier 51 when the same physician performs both. Breech vaginal delivery is reported with 59431 or 59432 plus modifier 22.

For multiple gestations, report one vaginal delivery code per fetus delivered vaginally, but only one cesarean code total regardless of how many fetuses were delivered that way.

Two timing rules to build into your edits. A repeat cesarean (59503) is typically planned without labor, so hospital inpatient and observation care on that date is included and not separately reportable. A planned primary cesarean (59502) that happens without labor does allow a separately reported E/M service on the same date.

Postpartum care

All postpartum global components are deleted, including 59430. Routine postpartum care on the delivery date is included in the delivery code, so don't bill a separate discharge service (99238, 99239) when the patient goes home the same day she delivers.

For a facility birth, every management day after the delivery date gets a subsequent hospital care code (99231 to 99233), then a discharge code on the day she leaves. Critical care days use 99291 and 99292. Outpatient follow-up uses the standard office, telemedicine, virtual check-in, or home visit E/M codes.

One new procedure code is worth flagging: 59623, uterine tamponade using a balloon, catheter, vacuum, or packing material. It doesn't cover pharmacologic management of hemorrhage, only the device or material placement.

How practices should prepare to implement these changes in 2027

Five months left. Here's the order I'd work in.

1. Sort your current patients by due date

Any pregnancy that starts in 2026 and delivers in 2027 straddles two code sets. This is the step with a hard deadline, and most practices haven't started it.

The AMA's antepartum transition guidance is specific. 2026 antepartum visits get reported with 59425, 59426, or E/M codes depending on the 2026 visit count. 2027 antepartum visits get E/M codes.

So a patient whose first visit lands in September or later probably has three or fewer 2026 visits, which bill as E/M anyway. One who started earlier likely has enough for 59425 or 59426 on the 2026 portion. Run the list now and flag both groups in your EHR.

2. Comment on the CMS proposed rule before September 14

The G-code question is still open. Comment directly or through your specialty society. It's the last chance to affect whether you run two billing structures in January.

3. Pull your top ten payer contracts

Find the maternity language and ask each payer in writing: how will you price the component codes, and are you following the CPT structure or keeping a bundled arrangement? Most maternity volume isn't Medicare, so the commercial and Medicaid answers matter more than the fee schedule does.

4. Get written go-live dates from your EHR and clearinghouse

Three things need confirming. New codes loaded. Edits for the deleted codes. Logic that counts labor management days correctly across a calendar boundary. Get the dates before October so there's time to test.

5. Rebuild charge capture for prenatal visits

Under the global package, a missed prenatal note didn't cost you a claim. In 2027 it does. Every visit needs a code, a note, and a pregnancy diagnosis. Check eligibility at every visit too, not once at intake.

Denial volume will rise because claim volume rises. A 3% denial rate on one claim per pregnancy is a different operational load than 3% on eighteen.

6. Train coders on straightforward versus complex labor management

That one decision drives a large share of your 2027 maternity revenue, and it's where downcoding and audit exposure both live. Put the six straightforward criteria in a documentation template so the call is defensible on the chart, not reconstructed later.

7. Reprice against the final rule in November

Final RVUs publish in early November. Rebuild your fee schedule before January 1, not after.

Start the transition before the transition starts

The CPT 2027 maternity care code changes aren't a coding project. They're a revenue cycle project wearing a coding costume.

The practices that come through this cleanly will be the ones that fixed charge capture, payer contracts, and E/M training in the fall of 2026. Not the ones who waited to read their January denial reports.

If you want to know how your current setup would hold up under component maternity billing, book a free billing audit and we'll walk through it with you.

Helpful Resources

American Medical Association. CPT 2027 Maternity Care Services codes and guidelines (early release, 2026). https://www.ama-assn.org/system/files/cpt-maternity-care-codes-guidelines.pdf

Centers for Medicare & Medicaid Services. CY2027 Medicare Physician Fee Schedule proposed rule, issued July 14, 2026. Comments close September 14, 2026.  https://www.cms.gov/newsroom/fact-sheets/calendar-year-cy-2027-medicare-physician-fee-schedule-proposed-rule

UnitedHealthcare. Commercial and Individual Exchange Obstetrical Reimbursement Policy. https://www.uhcprovider.com/content/dam/provider/docs/public/policies/comm-reimbursement/COMM-Obstetrical-Policy.pdf

American Medical Association. CPT Maternity Care Services Education Brief: Antepartum Transition Reporting.

https://www.ama-assn.org/system/files/cpt-maternity-care-brief-antepartum.pdf