Reviewed by certified coders + a maternal-fetal medicine physician / Updated for 2026
OB Coding Guide
59412 Procedure

CPT 59412: External Cephalic VersionExternal Cephalic Version

The short answer

Use 59412 when a provider manually rotates a breech or transverse baby to head-down through the abdominal wall, typically around 37 weeks. It bills separately from and in addition to the global OB package or the delivery code, whether or not the version succeeds. When delivery follows at the same encounter, report both the version and the delivery code; most payers want modifier 51 or 59 on the pairing.

Source: CMSSource: ACOGSource: CMS MPFS 2026

When to use 59412

Report 59412 for the version attempt itself: the assessment of fetal position, the manual rotation with monitoring before and after, and any tocolysis used to relax the uterus for the attempt. The code is outcome-independent, since a failed version involved the same work as a successful one; document the attempt and the end position either way. Do not carve the supporting pieces into their own claims: the ultrasound used to confirm position and guide the version and the tocolytic administration are considered part of the service by most payers, though a complete diagnostic ultrasound with its own indication and report can still stand alone.

Documentation checklist

The record should establish the malpresentation, the attempt, and the outcome, with monitoring bracketing the procedure.

Malpresentation confirmed and documented before the attempt, with method of confirmation
Gestational age at the attempt
Fetal monitoring before and after the version
Tocolysis noted if used
Outcome documented: successful rotation or failed attempt, and the final fetal position
If delivery followed the same encounter, both services and their sequence documented

Global package rules

59412 sits outside the global OB package: turning a malpresenting baby is management of a complication, not routine antepartum care, so it pays in addition to 59400, 59510, or a component delivery code. The delivery interaction is the part worth getting right. A successful version followed by induction and vaginal delivery bills the version plus the delivery code; a failed version followed by cesarean bills the version plus the cesarean code. Same-session pairings usually need modifier 51 or 59 depending on the payer. See The Global OB Package, explained. ACOG

Reimbursement

2026 · national Medicare averages
ComponentWork RVUTotal RVU2026 rate
59412Procedure1.712.82$94.19

National amounts under the 2026 Medicare Physician Fee Schedule (non-facility total RVU x $33.4009 conversion factor, no locality/MAC adjustment). Commercial and Medicaid rates differ. Verify current values with your MAC before billing.

Common denials

CO-97 Version bundled into the delivery or global fee
Why it happens
The payer's edits folded 59412 into a delivery code billed for the same encounter or the same pregnancy.
How to fix
Appeal with the procedure note. The version is separately payable alongside delivery and global codes; add modifier 59 or 51 per the payer's same-session convention and resubmit.
Source: NCCI
CO-50 No documented malpresentation
Why it happens
The claim lacked a breech or transverse-lie diagnosis, so the payer saw no indication for the procedure.
How to fix
Resubmit with the malpresentation diagnosis and the position-confirmation documentation.
Source: ACOG
CO-236 Guidance ultrasound denied alongside the version
Why it happens
An ultrasound billed with 59412 was treated as guidance inherent to the procedure rather than a distinct diagnostic study.
How to fix
Bill a separate ultrasound only when a complete diagnostic study with its own indication and report was performed; append the distinct-service modifier the payer requires, or write off pure guidance imaging.
Source: NCCI
CO-16 Claim details incomplete
Why it happens
Missing date of service, place of service, or rendering provider on the procedure line.
How to fix
Resubmit with the attempt date, the facility, and the performing provider's NPI.
Source: CMS

FAQ

What is the CPT code description for 59412?
In plain language, 59412 covers an external cephalic version: manually turning a breech or sideways baby into the head-down position through the abdominal wall, with monitoring around the attempt and medication to relax the uterus when used.
Can I bill 59412 if the version fails?
Yes. The code pays for the attempt, not the result. Document the effort and the final fetal position; the subsequent cesarean bills its own code.
How do I bill an ECV done the same day as the delivery?
Report both: 59412 plus the delivery or global code, with modifier 51 or 59 on the pairing per the payer's policy. A version followed by immediate induction is a common and billable sequence.
Is the ultrasound during the version separately billable?
Usually not. Imaging used to confirm position and guide the attempt is considered part of the service. A complete diagnostic ultrasound with its own indication and formal report can bill separately.
Is the version inside the global OB package?
No. It is complication management, separately payable on top of the global or component delivery codes, with the malpresentation diagnosis on the claim.
Does tocolysis add a billable line?
The tocolytic given to facilitate the version is generally bundled into 59412. Facility and drug charges follow the site of service rules, but the professional side does not bill it separately.