Structural-heart prior auths are the #1 cardiology billing headache in 2026. TAVR, MitraClip, and Watchman procedures generate $40K-$80K per case but get held up — sometimes for weeks — when prior auth documentation falls short. Here’s the payer-by-payer playbook our team uses to get approvals through in 48-72 hours.
Why structural-heart prior auths are tougher in 2026
Three pressures hit at once: (1) CMS revised the National Coverage Determination for TAVR in late 2025 to tighten heart-team documentation requirements; (2) commercial payers (Anthem, UHC, Cigna, Aetna) added more aggressive utilization review for MitraClip after a wave of off-label submissions in 2025; (3) Watchman LAAO coverage now requires CHA2DS2-VASc score plus documented contraindication to long-term anticoagulation — and payers are catching missing documentation more often.
TAVR (33361-33366) — payer-by-payer requirements
Every payer wants heart-team documentation. Specifics:
- Medicare (Novitas/NGS/Noridian): Two cardiac surgeons must independently assess for surgical risk. NCD requires STS score documentation and exclusion criteria for SAVR.
- Anthem BCBS: Heart-team note, STS Predicted Risk of Mortality (PROM) score, and frailty index per NCD 20.32. Pre-auth via Carelon (formerly AIM).
- UnitedHealthcare: OptumHealth review. Requires PROM ≥4% or anatomic features excluding SAVR. Step-edits for valve-in-valve vs native procedures.
- Cigna: eviCore review for all TAVR. Coverage decisions in 5-7 business days. Frequent denials for borderline-risk patients.
- Aetna: Aetna SmartSheets. Requires documentation of failed medical management AND inability to undergo SAVR.
MitraClip / TMVR (33418, 33419)
STS Registry participation required for almost all payers. Documentation must establish (1) severe symptomatic MR, (2) heart-team consensus on inoperability or high-risk for surgical mitral valve repair/replacement, and (3) life expectancy >1 year with reasonable QoL improvement potential. Recent commercial pushback on patients with mixed MR/AR — anticipate denials in those cases.
Watchman LAAO (33340)
The 5 documentation requirements every payer wants:
- Documented non-valvular AFib (paroxysmal, persistent, or permanent)
- CHA2DS2-VASc score ≥3 for women OR ≥2 for men
- Documented appropriate rationale to seek alternative to long-term anticoagulation (bleeding history, contraindication, or patient preference with shared-decision making documentation)
- Shared-decision making note signed by both physician and patient (CMS NCD requirement)
- Heart-team or equivalent multidisciplinary review
Cardiac CT (75571-75574)
Novitas LCD requires symptomatic patients (chest pain, dyspnea on exertion, or syncope of unclear etiology) OR documented coronary anomaly assessment. Stable, asymptomatic screening doesn’t qualify for Medicare coverage. Coronary calcium scoring (75571) has narrower coverage — only for intermediate-risk patients with established ASCVD criteria.
Cardiac MRI (75557-75565)
Appropriate Use Criteria from ACC/AHA. Common approved indications: cardiomyopathy characterization, viability assessment pre-revascularization, congenital heart disease evaluation, arrhythmia substrate mapping. Denied frequently when ordered for “general cardiac evaluation” without specific clinical question.
PET cardiac (78429-78434, G0427)
G0427 (PET myocardial perfusion) requires equivocal or non-diagnostic SPECT result, or specific clinical scenario per Novitas LCD. Sarcoid PET (F-18 FDG) requires biopsy-proven sarcoidosis with cardiac symptoms or arrhythmia.
The 48-72 hour approval workflow
- Pre-submission: Confirm eligibility, capture all required clinical elements at the visit
- Day 0: Submit auth request via payer portal with all clinical documentation as PDF attachments
- Day 1: Confirm receipt; review any “pending more info” requests immediately
- Day 2: Follow up by phone if no decision yet; document conversation in PM system
- Day 3+: Escalate to peer-to-peer review if denied
The 3 reasons prior auth gets denied
1) Missing heart-team note. Document the multidisciplinary team review explicitly with each member’s name, credentials, and date. 2) Missing risk scores. STS PROM for TAVR, CHA2DS2-VASc for Watchman, frailty assessment for elderly patients. 3) Off-label/borderline indications. When clinical fit isn’t crystal clear, attach peer-reviewed literature and request peer-to-peer review proactively.
Need help streamlining your cardiology prior auth workflow? AMS Solutions has handled structural-heart auths for cardiology practices since 1992 — we know each payer’s specific requirements cold. Call (214) 571-6317 or book a 30-minute review. Don’t forget our free 2026 Cardiology CPT Cheat Sheet. For practices in Texas or California, we also have state-specific guides: Texas cardiology billing | California cardiology billing.
