Summary & Overview
CPT 76820: Doppler Ultrasonography of Umbilical Artery for Fetal Surveillance
CPT code 76820 represents Doppler ultrasonography of the umbilical artery used in fetal surveillance to measure blood flow velocity. This diagnostic obstetric imaging procedure is clinically important for monitoring fetal well‑being, timing labor induction, and detecting fetal anemia that may necessitate intrauterine or neonatal transfusion. As a focused vascular ultrasound, it is commonly performed in hospital outpatient departments, maternal‑fetal medicine clinics, and obstetric ultrasound suites.
Key payers referenced in national coverage and reimbursement discussions include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise overview of clinical indications, typical sites of service, and which payers commonly cover this service. The publication also summarizes benchmarks and policy considerations relevant to payers and providers, and outlines clinical context that informs utilization and prior authorization practices.
This summary aims to orient clinicians, billing professionals, and policy stakeholders to the role of CPT code 76820 in prenatal care, highlighting why accurate coding and documentation matter for clinical decision‑making and payer interactions. Data not available in the input are noted where applicable.
Billing Code Overview
CPT code 76820 describes Doppler ultrasonography for fetal surveillance to assess blood flow velocity in the umbilical artery. This test helps determine fetal well-being, guides the timing of labor induction, and identifies fetal anemia severity that may require transfusion.
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Service type: Obstetric diagnostic imaging (Doppler fetal blood flow assessment)
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Typical site of service: Hospital outpatient department, maternal-fetal medicine clinic, or obstetric ultrasound suite
Clinical & Coding Specifications
Clinical Context
A 34-year-old pregnant patient at 32 weeks gestation with a history of intrauterine growth restriction (IUGR) presents for fetal surveillance. The obstetric provider orders Doppler ultrasonography of the umbilical artery to assess fetal-placental blood flow velocity, looking at systolic/diastolic ratios and absent or reversed end-diastolic flow. The sonography is performed in the outpatient maternal-fetal medicine clinic or hospital ultrasound suite by a certified sonographer with interpretation by the maternal-fetal medicine physician. Results inform timing of delivery, need for increased surveillance frequency, or interventions such as corticosteroids, admission, or expedited delivery if severe placental insufficiency or fetal compromise is detected. The typical workflow: scheduling or order placement by the obstetric clinician; patient check-in and verification; focused Doppler study performed (usually alongside a limited fetal biophysical profile or growth scan when indicated); images and Doppler waveforms archived; physician review and documentation of findings in the maternal record; coding and billing for the performed service using 76820 with applicable modifiers for professional/technical components or clinical circumstances.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
26 | Professional component | Use when billing only the physician interpretation component separate from technical component |