Delivery has always been the anchor of the OB global package. It was the event that justified the bundle, the moment the whole episode of care pointed toward. When the 2027 unbundling separates the components, delivery gets pulled out as its own reportable service, and the way you code and document the delivery becomes far more consequential than it was when it lived inside a single lump-sum payment.
This post walks through what changes for labor and delivery billing under the new structure. We are going to be disciplined about specifics. The exact CPT codes, modifiers, and reimbursement values are moving, and we will not guess at them. Verify everything against the current CMS and AMA source before you build [Verify against 2027 CMS/AMA CPT update].
Delivery Becomes Its Own Reportable Event
Under the global model, the delivery was baked into the package price. Vaginal or cesarean, the delivery itself did not carry an independent payment you had to code for separately. After unbundling, delivery is reported on its own.
The practical effect is that the delivery code, the mode of delivery, and any associated procedures now have to be captured accurately and independently. This is generally good news for practices, because delivery is the highest-acuity part of the episode and deserves clean, standalone reporting. But it also means the delivery claim can be denied on its own merits, separate from everything else in the pregnancy. Coding accuracy at the delivery moves from important to load-bearing.
Delivery-Only Scenarios Come Into the Light
One of the clearest benefits of unbundling shows up in delivery-only situations. Under the global package, a practice that delivered a patient who received prenatal care elsewhere was stuck with awkward proration or partial-package coding that rarely matched the work. Delivering a baby is the same clinical event whether or not you did the prenatal care, but the global math treated it as a fraction.
Component billing lets you report the delivery you actually performed. If a patient transfers to you at the very end, or arrives in labor with no established care in your practice, you report the delivery on its own terms. For practices that take call, cover for partners, or serve as the delivery site for a referral network, this is a real correction to a long-standing underpayment.
Mode of Delivery and Documentation
With delivery reported independently, documentation of the mode and circumstances of delivery carries direct billing weight. Vaginal delivery, cesarean, vaginal birth after cesarean, and the complications and procedures that accompany them each need to be documented clearly enough to support the code submitted.
This is where we encourage practices to tighten their delivery note templates ahead of go-live. The operative and delivery notes many practices use were written in a world where the payment was fixed by the global code. In the new world, the note supports a specific delivery claim, and any additional reportable procedures around the delivery need to be captured in the moment. What is not documented at delivery is difficult to reconstruct later and easy to lose.
More Claims, More Edits, More Places to Leak
Because delivery is now separated from antepartum and postpartum care, the delivery claim travels through the payer’s edits on its own. That means it can hit a payer-specific edit, an eligibility issue, or a bundling rule that the global claim never encountered.
We keep coming back to the same theme across this whole transition because it is the whole game: unbundling multiplies the number of claims, and every claim is a place where 8 to 20 percent revenue leak can hide. The delivery claim is the highest-dollar single claim in the episode. A delivery claim that denies and does not get worked is one of the most expensive misses in an OB practice. Your denial management process has to treat delivery denials as priority-one work, not something that ages in a queue.
Coordinating the Delivery Claim With the Rest of the Episode
Even though the components are separate, they are not independent in the eyes of the payer. Sequencing and coordination between the antepartum, delivery, and postpartum claims will matter, and payer rules on how the components relate will vary. Commercial payers will not all adopt the same structure or the same edits, and they rarely move on the same timeline as CMS.
This is why we treat the delivery claim as part of a coordinated episode rather than a standalone event, even under component billing. Your billing operation, in-house or partnered, needs a clear picture of how the pieces are expected to be submitted together, and needs to watch how each major payer actually adjudicates them in the first weeks of 2027.
What to Do Before Go-Live
Update your delivery and operative note templates so mode of delivery and any additional reportable procedures are captured cleanly and by default. Brief your providers that the delivery note now supports a specific, high-dollar claim. Make sure your denial workflow flags delivery denials as top priority. And map your delivery-only and transfer-in volume, because that is where unbundling most likely improves your capture.
Our 2027 OB revenue calculator lets you model the delivery component against your own case mix, including your share of delivery-only and transfer patients, so you can see the real impact rather than a national average. You will find supporting worksheets and current payer notes in our Trusted Resources hub at https://natrevmd.com/trusted-resources/ as the policies firm up.
Delivery is the highest-value single event in the OB episode. Under the new landscape, it is also its own claim, its own denial risk, and its own opportunity. Build the documentation and the denial discipline to protect it.
Coding labor and delivery accurately in 2027 is part of what our OB/GYN billing services will manage for you.
Run the 2027 OB calculator: https://eligibility.natrevmd.com/the-2027-ob-revenue-calculator
