IDR for cardiologists: the cardiology claim record
What EKG and duplex lines won in 2025, why diagnostic reads cannot be signed away, and how small-dollar reads batch into real recoveries.
Cardiology is one of the fastest expanding corners of federal IDR: quarterly dispute volume more than tripled between the third quarters of 2024 and 2025, and the 2025 files hold 83,809 disputes with cardiology line items. Providers won 88.33 percent of decisions. Payers offered a median of exactly the QPA; arbitrators decided at a median of 6.78 times it. This site covers how cardiologists can use the process, with the published record as its only source.
All 3.39 million federal IDR disputes published by CMS, 2023 through 2025. Explore the data at idrexplorer.com.
Federal IDR is the No Surprises Act arbitration process for out-of-network claims. In the 2025 public use files, 83,809 disputes carried cardiology line items; providers won 88.33 percent of decided ones, the median payer offer was 1.0 times the QPA, and the median decided line paid 6.78 times it. Emergency and call coverage claims qualify unconditionally, and diagnostic reads at in-network facilities cannot be waived by patient consent.
A record that tripled in a year
The 2025 public use files hold 83,809 disputes with cardiology line items, up from 7,041 quarterly filings in the third quarter of 2024 to 25,240 a year later. Providers won 88.33 percent of decisions, and the median decided award across the bucket was $317.60 against a median QPA of $44.89. The median payer offer sat at 1.0 times the QPA, the benchmark itself, which is the whole dispute in one number: payers offered the floor, and arbitrators valued the same lines at a median of 6.78 times it. Decisions came back in a median of about 30 days.
The codes that carry the volume
Electrocardiograms dominate. The tracing line (93005) appeared in 37,859 disputes with an 83.35 percent win rate and a median decided award of $582.40 against a $111.12 QPA. The interpretation and report line (93010) ran 21,105 disputes with an 85.63 percent win rate; its median QPA was $12.51 and its median decided award $94.00. Vascular studies fill out the book: limited venous duplex (93971) won 89.92 percent of 8,683 disputes at a median of $271.70 against a $33.42 QPA, and limited visceral duplex (93976) won 91.68 percent of 4,789 at $492.05 against $82.07.
Payers and geography
Blue Cross Blue Shield of Texas is the most disputed payer at 21,044 cardiology disputes, decided at a 7.15 median multiple. UnitedHealthcare ran 15,729 at 8.33 times the QPA. Aetna's 12,495 disputes decided at a 91.77 percent provider win rate, the highest among the large payers. Cigna and MultiPlan-administered claims combined for 6,911 with the softest numbers in the group: a 78.3 percent win rate and a 4.02 median multiple. Texas alone accounts for 43,603 disputes at a 6.93 multiple, and Arizona for 8,244 at 8.24.
Filing costs and the flat-fee alternative
The cash outlay is small. Each side pays $15 to file a dispute and puts a few hundred dollars toward the certified IDR entity, money the prevailing side recovers. Representation is the real line item. Percentage vendors take 15 to 25 percent of every award, and on a cardiology book the awards repeat by the thousand. Lido IDR files for a flat fee per arbitration instead. Every statistic on this site comes from the CMS public use files, explorable at idrexplorer.com.
Common questions
Can cardiologists use federal IDR?
Yes. Emergency care and hospital call coverage qualify unconditionally under the No Surprises Act, and out-of-network services at in-network hospitals, outpatient departments, and ambulatory surgery centers can qualify as well. Diagnostic work such as EKG interpretation cannot be waived by patient consent. Office visits and office-based imaging sit outside the federal process.
What do cardiology claims pay in federal IDR?
In the 2025 public use files, providers won 88.33 percent of 83,809 cardiology disputes, and the median decided line paid 6.78 times the QPA. EKG tracing lines paid a median of $582.40, interpretation lines $94.00, and limited visceral duplex studies $492.05.
Are EKG interpretation lines worth arbitrating?
Batched, yes. A single 93010 line carries a median QPA of $12.51, far too small to file alone, but disputes against the same payer for the same or related codes can travel together in one arbitration. Decided interpretation lines paid a median of $94.00, about 7.5 times the benchmark, and a call panel generates them daily.
Can a consent form remove cardiology claims from IDR?
Not for diagnostic or emergency work. The No Surprises Act regulations bar notice-and-consent waivers for emergency services and for diagnostic services, which is where EKG and imaging reads live. A scheduled, non-diagnostic service at an in-network facility can be waived, but only with a valid form signed at least 72 hours ahead.
What does it cost a cardiology practice to file?
Each side pays $15 to file a dispute, plus a few hundred dollars toward the certified IDR entity that returns to the winner. Percentage vendors charge 15 to 25 percent of every award; Lido IDR charges a flat fee per arbitration, which matters on a book where the same codes repeat thousands of times.
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