Obstetrical Ultrasound Imaging Guidelines

Covers indication-driven obstetrical ultrasound (dating, anatomy surveys, NT/aneuploidy screening, growth surveillance, Doppler, fetal echocardiography, fetal MRI, IUD localization, ectopic evaluation, etc.) with detailed CPT, gestational-age timing and frequency limits, and excludes non-medical/keepsake imaging and routine sex determination (non‑obstetrical pelvic codes generally disallowed in confirmed pregnancy except specified exceptions). Key requirements: confirmed pregnancy (positive test or fetal heart), each request must include EDD/gestational age, prior ultrasound results and a history & physical plus specific clinical indication to justify timing/frequency or repeat CPT use (many codes allowed only once per pregnancy unless change of caregiver or new medical indication).

"Positive pregnancy test or otherwise confirmed pregnancy (required before use of obstetrical CPT codes)."