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Improve ASC revenue performance with accurate coding, clean claims, faster reimbursements, denial management, payer follow-up, and compliance-focused billing support designed for ambulatory surgery centers.

  • Clean Claims
  • Faster Payments
  • Denial Control
  • Coding Accuracy
98%
Clean Claim Rate
35%
Faster Reimbursements
25%
Fewer Denials
20%
Improved Collections
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Payer Workflows

OB/GYN Billing Services for Obstetrics and Gynecology Practices

A single global maternity claim can carry months of prenatal care, a delivery, and postpartum follow-up, and one missed modifier, a wrong trimester-specific diagnosis code, or a service billed inside a bundle it should have been billed beside can hold thousands of dollars in A/R or trigger an outright denial. OB/GYN is one of the harder specialties to bill correctly, and general billing teams routinely under-collect on it. OB/GYN billing services from Advanced IT and Healthcare Solutions are built around the coding, payer, and revenue-cycle realities specific to obstetrics and gynecology.

Technology EHR and Documentation Workflow

Why OB/GYN Billing Is More Complex Than General Medical Billing

OB/GYN combines obstetrics, gynecology, surgical procedures, diagnostics, and family planning under one practice, each with its own coding logic. Maternity care is reimbursed as a bundled global package billed once, after delivery, unlike the visit-by-visit billing most specialties use, so a biller has to track an entire pregnancy and know which services fall outside the bundle. Payer rules for antepartum and postpartum care, vaginal versus cesarean coding, trimester-specific ICD-10 codes, and frequent policy updates all raise the denial risk, which is exactly why generalist billing under-performs here.

Global Maternity Package Billing

The global OB package bundles routine antepartum care (roughly 13 prenatal visits), labor and delivery management, and postpartum care into one reimbursement for an uncomplicated pregnancy, billed after delivery when the same provider or group (same tax ID) handles all three phases (AAPC; payer policies, 2025).

Common Global CPT Coding Categories
59400
Routine care with vaginal delivery
Standard global package — same provider throughout
59510
Routine care with cesarean delivery
Includes antepartum, cesarean delivery, and postpartum
59610
VBAC — vaginal delivery after prior cesarean
Vaginal birth after previous cesarean section
59618
Cesarean after attempted VBAC
Attempted VBAC that converts to cesarean
Included in Package
Routine prenatal visits (approx. 13 visits)
Admission and labor management
The delivery itself
Repair of minor lacerations
Routine postpartum care
Billed Separately
Obstetric ultrasounds (76801, 76805, 76811…)
Non-stress tests (59025)
Lab work — glucose tolerance, Group B strep
E/M for genuine complications with modifier 25
What is included in the global OB package?

The global package covers routine prenatal visits, admission, management of uncomplicated labor, the delivery itself, repair of minor lacerations, and routine postpartum care, billed under one code after delivery. Ultrasounds, lab work, non-stress tests, and visits for genuine complications are billed separately.

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Global Maternity Package Billing

The global OB package bundles routine antepartum care (roughly 13 prenatal visits), labor and delivery management, and postpartum care into one reimbursement for an uncomplicated pregnancy, billed after delivery when the same provider or group (same tax ID) handles all three phases (AAPC; payer policies, 2025).

01
Modifier 25 Problems

Billing a problem E/M alongside a preventive well-woman visit (99381–99397) or alongside a procedure such as colposcopy or IUD insertion without documentation that clearly supports a separate, significant service. Payers assume the visit is included unless the note proves otherwise.

02
Bundling Errors

Billing a routine prenatal visit separately when it belongs inside the global package, or billing the global code on the same day as a routine visit.

03
Trimester-Specific ICD-10 Mismatches

Using a first-trimester gestational diabetes code (O24.x) for a patient at 30 weeks. Obstetric diagnosis codes are trimester-specific and must match gestational age.

04
Weak Diagnosis-to-Procedure Linkage

Ultrasounds and Pap/HPV testing denied because the diagnosis does not justify medical necessity, or a screening ICD-10 is used for a diagnostic visit.

05
Front-End Errors

Eligibility and prior-authorization gaps. Industry surveys identify missing or inaccurate data, authorizations, and incomplete patient information as the leading denial drivers.

Why do OB/GYN practices see more denials than other specialties?

OB/GYN billing layers global-package rules, payer-specific antepartum and postpartum policies, trimester-specific diagnosis coding, and heavy modifier use on top of normal claims work. Each adds a failure point, so practices without specialty-trained billers tend to see higher denial and underpayment rates.

Global Maternity Package Billing

4–5%
Healthy denial rate (MGMA top performers)
95%+
Recommended clean claim rate
65%
Denied claims never reworked
11–12%
Average initial denial rate in 2024
Key Modifiers Used in OB/GYN Billing
Mod 25Separate E/M service

Documents that the E/M was significant and separately identifiable from any procedure performed the same day.

Mod 59Distinct procedural service

Two procedures that would normally be bundled under NCCI edits are actually distinct and separately reportable.

Mod 26Professional component

Used when interpreting hospital-owned imaging (e.g., reading an ultrasound performed on hospital equipment).

Mod 51Multiple procedures

Applied to secondary procedures performed in the same session. Medicare and most commercial payers apply a reduction on secondary procedures.

Mod ASAssistant surgeon

Applied for surgical assistant services when the procedure qualifies. Medicare requires specialty-specific assistant eligibility by CPT code.

A/R Aging Buckets — Monitored Weekly
0–30 days
31–60 days
61–90 days
90+ daysHigh Priority
How can a practice reduce OB/GYN denials without hiring more staff?

Fix the front end and close the loop. Verify eligibility and authorizations before the visit, scrub claims for modifier and diagnosis-linkage errors before submission, and analyze denial reason codes monthly to correct the root cause. A specialty billing partner runs this without adding payroll.

Technology EHR and Documentation Workflow

Prior Authorization and Eligibility Verification

A large share of OB/GYN denials originate before a claim is ever submitted, so coverage is verified in real time and authorizations are secured ahead of services such as imaging, surgical procedures, and certain diagnostics. For maternity patients, confirming benefits early also lets the front desk give accurate cost estimates and reduces surprise-billing friction. Verifying eligibility before screening and diagnostic services keeps Pap, HPV, and ultrasound claims from being denied for coverage or medical-necessity reasons.

Payer Workflows

Credentialing and Payer Enrollment for OB/GYN Providers

Enrollment and credentialing delays quietly stall revenue: an OB/GYN who sees patients before payer enrollment is complete generates claims that cannot be paid. Advanced IT and Healthcare Solutions supports provider enrollment, CAQH maintenance, and re-credentialing so new and existing providers stay billable across commercial, Medicare, and Medicaid plans.

Technology EHR and Documentation Workflow

OB/GYN Billing Reports and Revenue Cycle Transparency

Outsourced billing should make a practice's numbers clearer, not hide them. Monthly reporting includes clean claim and first-pass acceptance rates, denial rate by payer and reason code, days in A/R and aging buckets, collections and net collection rate, and the status of submitted, pending, and appealed claims. The point is a revenue cycle the practice owner can read at a glance and question line by line.

Payer Workflows

Switching to an OB/GYN Billing Company

The most common reason practices delay outsourcing is fear of disruption to cash flow. A structured transition limits that risk: existing A/R is reviewed and worked in parallel so older claims are not abandoned, payer logins and clearinghouse connections are mapped, the practice management system and EHR are integrated, and a cutover date is set so no claims fall through the gap. A typical onboarding runs a few weeks depending on payer mix and system access, with legacy A/R worked alongside new claims.

Technology EHR and Documentation Workflow

How Advanced IT and Healthcare Solutions Can Help

Advanced IT and Healthcare Solutions supports OB/GYN practices across the full revenue cycle: charge entry and OB/GYN-specific coding, global maternity package and itemized care billing, claim scrubbing and submission, denial management and appeals, A/R follow-up, prior authorization and eligibility verification, credentialing and payer enrollment, payment posting, and monthly KPI reporting. The team helps practices identify billing gaps, reduce preventable denials, improve claim follow-up, and build a more consistent revenue cycle. We do not promise guaranteed results, payer behavior and case mix vary, but we do commit to a defined, transparent process and reporting you can verify against your own books.

Have any questions?

Outsourced OB/GYN billing is usually priced as a percentage of monthly collections, so the fee scales with revenue rather than sitting as a fixed salary. The right comparison is total in-house cost, salary, benefits, software, and revenue lost to denials, against the percentage model. Pricing varies by volume and service scope.

The most frequent causes are modifier 25 documentation gaps, billing services that belong inside the global package separately (or vice versa), trimester-specific ICD-10 mismatches, weak diagnosis-to-procedure linkage on ultrasounds and Pap tests, and front-end eligibility or authorization gaps.

Expect clean claim and first-pass acceptance rates, denial rate by payer and reason code, days in A/R with aging buckets, collections and net collection rate, and the status of pending and appealed claims.

Yes. Small practices often see the clearest benefit, since specialty coding expertise and denial management are built into the service without the fixed cost of an in-house billing hire.

It depends on volume and on whether your in-house team has OB/GYN-specific coding expertise. Smaller and single-provider practices often collect more, net of fees, with a specialty partner because global-package and modifier errors are caught before submission. Larger groups with strong internal coders may keep billing in-house.

Onboarding commonly takes a few weeks, depending on payer mix, system access, and the state of existing A/R. A structured transition works legacy A/R in parallel with new claims so cash flow does not stall during the switch.

Yes. Provider enrollment, CAQH maintenance, and re-credentialing are supported so new and existing OB/GYN providers stay billable across commercial, Medicare, and Medicaid plans.