OB/GYN CPT Codes and Modifiers for 2025
May 4, 2025
OB/GYN practices handle everything from preventive care and pregnancy management to surgeries and menopause counseling. To ensure full reimbursement and minimize denials, it’s critical to use the correct OB/GYN CPT codes and modifiers for 2025.
This guide covers essential Evaluation & Management (E/M), prenatal care, procedures, and diagnostic testing codes, plus common modifiers and ICD-10 pairings.
Evaluation & Management (E/M) Codes
| CPT Code | Description |
|---|---|
| 99202–99205 | New patient office visits |
| 99212–99215 | Established patient office visits |
| 99221–99223 | Initial hospital care |
| 99231–99233 | Subsequent hospital care |
| 99238–99239 | Hospital discharge services |
Obstetric Services
| CPT Code | Description |
|---|---|
| 59400 | Routine OB care (antepartum, delivery, postpartum) |
| 59409 | Vaginal delivery only |
| 59410 | Vaginal delivery with postpartum care |
| 59510 | Routine cesarean care |
| 59514 | Cesarean delivery only |
| 59515 | Cesarean with postpartum care |
| 59610 | VBAC vaginal delivery |
| 59618 | VBAC cesarean delivery |
Common Gynecological Procedures
| CPT Code | Description |
|---|---|
| 57500 | Cervical biopsy |
| 58100 | Endometrial biopsy |
| 58300 | IUD insertion |
| 58301 | IUD removal |
| 58120 | Dilation and curettage (D&C) |
| 57454 | Colposcopy with biopsy and ECC |
| 58558 | Hysteroscopy with biopsy or polypectomy |
| 58661 | Laparoscopic removal of adnexal structures |
Diagnostic Tests and Screenings
| CPT Code | Description |
|---|---|
| 81025 | Urine pregnancy test |
| 76801 | Obstetric ultrasound, first trimester |
| 76805 | Obstetric ultrasound, second/third trimester |
| 76856 | Pelvic ultrasound, non-obstetric |
| 87624 | HPV testing |
| 88175 | Automated Pap smear with rescreen |
OB/GYN Billing Modifiers
| Modifier | Description |
|---|---|
| -25 | Separate E/M on same day as procedure |
| -59 | Distinct procedural service |
| -76 | Repeat procedure by same provider |
| -77 | Repeat procedure by another provider |
| -24 | Unrelated E/M during global period |
| -51 | Multiple procedures |
| -TC | Technical component |
| -26 | Professional component |
Common ICD-10 Codes for OB/GYN
| ICD-10 Code | Description |
|---|---|
| Z34.91 | Supervision of normal pregnancy, unspecified trimester |
| N80.9 | Endometriosis, unspecified site |
| N84.0 | Polyp of corpus uteri |
| N92.5 | Other irregular menstruation |
| Z12.4 | Screening for cervical cancer |
| N93.9 | Abnormal uterine bleeding, unspecified |
| Z30.09 | General contraception counseling |
OB/GYN Billing Tips for 2025
Final Thoughts
OB/GYN billing can get complicated quickly, with bundled maternity care, preventive visits, and procedures often performed together. By staying current on OB/GYN CPT codes and modifiers for 2025, practices can avoid denials, reduce audits, and streamline reimbursement while focusing on excellent patient care.
For informational purposes only.
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