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Antepartum Fetal Surveillance (CPB 0088, reviewed 2026-08-05)

Aetna·OB-GYN·Medical Policy
Effective date
Aug 5, 2026
We identified it
Aug 17, 2026
Days to comply

Summary

Aetna has updated its Antepartum Fetal Surveillance policy (CPB 0088, reviewed 2026-08-05) to clarify medical necessity criteria for NST, CST, BPP, modified BPP, and Doppler studies. The policy specifies when testing begins (26-34 weeks depending on risk level), establishes repeat testing frequency requirements, and designates certain advanced tests (remote NST, ductus venosus Doppler, uterine artery Doppler) as experimental/unproven. Billing teams must ensure claims align with the documented medical necessity criteria and high-risk condition classifications.

Action Required

Action needed
By 2026-08-05: Billing and clinical teams must implement the following: (1) Billing team: Update claim submission protocols to verify medical necessity documentation supports one of Aetna's covered indications (utero-placental insufficiency risk factors, IUGR, oligohydramnios, monochorionic twin screening, preeclampsia sFlt-1/PIGF ratio eligibility). (2) Providers: Ensure encounter documentation explicitly identifies the qualifying high-risk condition (e.g., chronic hypertension, gestational diabetes, fetal growth restriction, maternal heart disease NYHA Class III/IV, bleeding, etc.) and gestational age. (3) Billing team: Deny or request correction for claims with CPT 59020, 59025, 76818, 76819 lacking documented high-risk criteria. (4) Billing team: Reject claims for remote/tele-monitored NST (CPT 59025 variants) and uterine artery Doppler studies as experimental/unproven. (5) Clinical teams: Do not order ductus venosus Doppler, serum YKL-40, ophthalmic artery Doppler, ischemia-modified albumin, or umbilical artery Doppler for multiple gestations (except TTTS/TAPS screening) as these are non-covered. Update EMR templates to include dropdown selection of qualifying risk conditions at time of order. Failure to document medical necessity will result in claim denials from Aetna.

Affected Billing Codes

59020
59025
76805
76810
76818
76819