OB/GYN Billing Audit & Global Maternity Revenue Integrity
Eliminate silent write-offs when maternity patients transfer care, defend same-day procedural colposcopies (CPT 57454/57522) against unbundling edits, and maximize J-code reimbursement for LARC contraceptive devices.
Obstetrics and Gynecology practices balance complex episodic care (9-month global maternity packages) with high-acuity in-office surgical procedures and high-dollar contraceptive devices. Commercial payers systematically exploit the global maternity package (CPT 59400/59510) to deny legitimate medical complications (gestational diabetes, preeclampsia, high-risk ultrasound monitoring) claiming they are 'routine antepartum visits.' Additionally, expensive Long-Acting Reversible Contraception (LARC) devices (Mirena, Kyleena, Nexplanon) are routinely underpaid below invoice wholesale cost. Our forensic OB/GYN audit restores clean billing boundaries between global obstetric care and reimbursable gynecological interventions.
Audit red flags
- Insurers denying problem-focused visits (e.g., hyperemesis gravidarum, gestational hypertension) under the assumption they are covered by global maternity 59400.
- Failure to unbundle and bill itemized antepartum visits (59425 for 4-6 visits, 59426 for 7+ visits) when pregnant patients change commercial insurers mid-term.
- LARC device claims (J7298 / J7300) reimbursed below the practice’s wholesale invoice cost from the distributor.
- LEEP cervical conization (CPT 57522) denied because operative pathology reports lacked clear margin depth documentation.
Audit action plan
- 1. Antepartum Problem Separation Protocol — Train clinical providers to document distinct non-obstetrical or high-risk ICD-10 codes when evaluating acute pregnancy complications to defend Modifier 25.
- 2. Insurance Mid-Term Transition Tracker — Implement automated tracking for patient insurance carrier shifts during gestation, converting global 59400 claims into compliant itemized antepartum codes (59425/59426).
- 3. LARC Wholesale Invoice Carve-Out Audit — Audit commercial contracts to ensure pharmacy carve-out rates for IUDs and Nexplanon cover wholesale invoice costs plus handling fees.
Codes reviewed
- 59400 — Routine Obstetric Care with Vaginal Delivery (Antepartum, Delivery, Postpartum)
- 57454 — Colposcopy with Biopsy of the Cervix and Endocervical Curettage
- J7298 — Levonorgestrel-Releasing Intrauterine Device (Mirena, 52 mg)
- 58300 — Insertion of Intrauterine Device (IUD)
Frequently asked questions
How do you bill when an obstetrical patient switches insurance mid-pregnancy?
When a patient switches insurance before delivery, the initial practice cannot bill global CPT 59400. You must bill itemized antepartum visit codes: CPT 59425 (for 4 to 6 antepartum visits) or CPT 59426 (for 7 or more antepartum visits) to the first insurer, and delivery codes to the second insurer.
Can an OB/GYN bill for an annual wellness exam and an abnormal Pap follow-up on the same day?
Yes. The preventive gynecological exam is reported under the appropriate preventive medicine code (CPT 99395-99397), and the problem-focused evaluation (abnormal bleeding, pelvic pain) is billed under 99213-99214 with Modifier 25 appended, supported by independent clinical notes.