Why OB/GYN Billing Is Complex
OB/GYN practices face unique billing challenges spanning obstetrics, gynecology, and preventive care — each with distinct coding rules and payer policies.
Maternity Global Package Management
Obstetrical global packages (59400, 59510, 59610) bundle antepartum care, delivery, and postpartum care into a single payment, but proper coding depends on number of visits, delivery method, and complications. Global package billing requires precise tracking of antepartum visits, accurate delivery code selection, and correct modifier use for services outside the global period.
Gynecologic Surgery Coding
Gynecologic procedures from colposcopy (57420-57421) and LEEP (57522) to hysterectomy (58150-58294) and laparoscopy (58550-58579) require precise coding based on approach, extent, and pathology. Modifier usage for multiple procedures and bilateral services adds significant complexity to surgical coding.
Obstetric & Gynecologic Ultrasound
OB ultrasound coding (76801-76828) requires distinction between fetal anatomic surveys, limited studies, and biophysical profiles. Gynecologic pelvic ultrasound (76830-76857) adds complexity with transvaginal versus transabdominal approaches and proper coding for saline infusion sonohysterography (SIS).
Preventive vs. Problem-Oriented E/M
Well-woman visits (99381-99397) require proper distinction from problem-oriented E/M services (99202-99215) when a patient presents with both preventive and acute concerns. Medicare's annual wellness visit, pelvic exam copay rules, and modifier 25 for significant separately identifiable services create constant compliance challenges.