How long does an EHR migration affect cardiology billing?

Plan for a three-to-six-month revenue impact. MGMA's 2024 practice-operations survey puts the typical A/R extension at 30–60 days when billing wasn't scoped into the EHR RFP. Cardiology practices feel it fastest because echo, stress, and cath claims carry prior-auth and modifier edits that must be rebuilt in the new system before clean claims flow again.

How much do medical billing companies charge a cardiology practice?

Most outsourced cardiology billing runs 4–9% of net collections, with smaller practices and low-volume specialties landing at the higher end. Some vendors quote flat per-claim pricing instead. During an EHR cutover, ask whether the percentage covers denial rework and A/R follow-up, since denial rates can spike from roughly 12% to 20% in the go-live quarter.

Why do denials spike after an EHR go-live?

Charge capture templates, payer edits, and modifier logic all get rebuilt during migration, and staff are learning the new workflow while claims are still due. Experian's State of Claims 2024 shows denial rates of 12–20% during unsupported cutover quarters. Cardiology is hit harder because 93306 echoes and 93458 caths depend on documentation and prior-auth links that often don't map cleanly.

What should I do with old A/R before an EHR cutover?

Work the greater-than-90-day bucket down before migration, because aged claims are the ones most likely to be orphaned when data moves. Payer timely-filing windows run roughly 90–365 days and do not pause for go-live, so any claim that ages past the limit is unrecoverable. Freeze new billing rule changes for the 30 days before cutover.

Should I outsource cardiology billing during an EHR migration?

It's the most common reason cardiology practices switch. An outside team stays productive on day one while in-house staff learn the new charting workflow, which protects against the 30–60 day A/R extension MGMA reports. Compare pricing against your current cost to collect — in-house billing typically runs 6–10% of collections once salaries, benefits, and clearinghouse fees are counted.

Cardiology EHR Migration: 3-6 Month Billing Hit (2026)

EditorialOriginal analysis · M. Kaur, MHA

By M. Kaur, MHAAugust 11, 2026Updated August 29, 2026Blog Post

TL;DR

Cardiology EHR migrations typically extend A/R by 30–60 days when billing operations aren't written into the RFP, per MGMA's 2024 practice-operations survey, with the cash-flow drag lasting three to six months. For a solo cardiologist, that lag can strand roughly $50,000–$150,000 of expected collections across a single quarter. Denial rates that normally run near 12% can climb toward 20% during cutover quarters when coders are unsupported. High-volume codes like 93000, 93306, and 93458 carry the most exposure, and payer timely-filing windows of 90–365 days never pause for go-live.

An EHR migration is a big lift. Most practices focus on the clinical experience and let billing come along for the ride — which is where A/R slips. Get matched with EMR/EHR options and billing partners that fit your specialty in the same round.

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Why billing feels the cutover first

The clinical team learns the new charting workflow over months. Coders, billers, and A/R staff have to be productive on day one, because every claim that misses timely-filing is unrecoverable. The industry data on cutover risk is unambiguous.

30–60 daysTypical A/R extension during a poorly-planned EHR cutover.MGMA 2024 practice-operations survey [1]

12–20%Denial rate that spikes higher during cutover quarters if staff are unsupported.Experian State of Claims 2024 [2]

Timely-filingThe one deadline that doesn't move for cutover chaos — miss it and the claim is dead.HFMA Revenue Cycle Analytics 2024 [3]

The EHR vendor selection process almost never includes billing operations in the room. That single omission is why cash flow drops in the first quarter after go-live.

— Chuck Christian, VP of Technology, Franciscan Health (HFMA 2024 industry Q&A [3])

Three moves before the go-live date

Freeze new billing rules 30 days pre-cutover. Staff should be reinforcing muscle memory, not learning payer edits mid-migration.
Clear your >90-day A/R bucket first. Aged claims tend to get orphaned during data migrations; work them before, not after.
Assign one owner for the claim queue. Not a team, not a rotation — one name, so cutover exceptions get triaged by end of day.

Compare EHR options and billing partners in one round

Answer a few quick questions and matched vendors reach out within one business day. You choose who to talk to — no obligation.

CPT/ICD Codes Cardiology Billers Must Master

Below is a working reference of codes cardiology billers touch most often, alongside the denial triggers that show up first in a partner review. Fee-schedule numbers are national Medicare Physician Fee Schedule (2024–2025) ballparks; actual reimbursement varies by Medicare Administrative Contractor jurisdiction and payer contract.

CPT 93000 · Electrocardiogram, Complete

National Medicare payment ballpark: ~$18–24 per code (2024–2025 PFS, MAC-dependent). Denial trigger cardiology billers see most: the interpretation-and-report component is unbilled or unsigned. A high-volume cardiology practice can push this code 2,000+ times per year, so a 10–15% denial rate compounds into meaningful leakage a solo cardiologist cannot afford to leave uncontested.

CPT 93306 · Echocardiography, Complete with Doppler and Color Flow

National Medicare payment ballpark: ~$180–240 (2024–2025 PFS, MAC-dependent), often the single largest recurring cardiology CPT after office visits. Denial triggers: incomplete documentation of all four required components (2D, M-mode, spectral Doppler, color-flow Doppler) or a mismatched ICD-10 that does not support medical necessity under the local coverage determination.

CPT 33206 · Insertion of Permanent Pacemaker, Atrial

National Medicare payment ballpark: ~$1,800–2,400 for the professional component (2024–2025 PFS, MAC-dependent). Companion codes 33207 (ventricular, ~$1,900–2,600) and 33208 (dual-chamber, ~$2,100–2,900) follow the same denial profile: missing indication documentation, wrong device-model codes, or supply-code mismatches with the facility claim. Downstream interrogation codes (93288, 93293) generate recurring revenue that gets missed without a device-tracking workflow.

CPT 33249 · Insertion of Implantable Cardioverter-Defibrillator

National Medicare payment ballpark: ~$2,400–3,500 for the professional component (2024–2025 PFS, MAC-dependent). One of the highest per-claim cardiology values, and one of the most audited — the Medicare National Coverage Determination requires specific EF thresholds and NYHA class documentation. A billing partner that does not audit ICD indication documentation before submission is the wrong partner for an EP-heavy practice.

Sources

[1] MGMA — 2024 Practice Operations Survey. https://www.mgma.com/data [2] Experian Health — State of Claims 2024. https://www.experian.com/healthcare/resources/state-of-claims-2024 [3] HFMA — Revenue Cycle Analytics Report, 2024 edition. https://www.hfma.org/topics/revenue-cycle/

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Answers

How long does an EHR migration affect cardiology billing?: Plan for a three-to-six-month revenue impact. MGMA's 2024 practice-operations survey puts the typical A/R extension at 30–60 days when billing wasn't scoped into the EHR RFP. Cardiology practices feel it fastest because echo, stress, and cath claims carry prior-auth and modifier edits that must be rebuilt in the new system before clean claims flow again.
How much do medical billing companies charge a cardiology practice?: Most outsourced cardiology billing runs 4–9% of net collections, with smaller practices and low-volume specialties landing at the higher end. Some vendors quote flat per-claim pricing instead. During an EHR cutover, ask whether the percentage covers denial rework and A/R follow-up, since denial rates can spike from roughly 12% to 20% in the go-live quarter.
Why do denials spike after an EHR go-live?: Charge capture templates, payer edits, and modifier logic all get rebuilt during migration, and staff are learning the new workflow while claims are still due. Experian's State of Claims 2024 shows denial rates of 12–20% during unsupported cutover quarters. Cardiology is hit harder because 93306 echoes and 93458 caths depend on documentation and prior-auth links that often don't map cleanly.
What should I do with old A/R before an EHR cutover?: Work the greater-than-90-day bucket down before migration, because aged claims are the ones most likely to be orphaned when data moves. Payer timely-filing windows run roughly 90–365 days and do not pause for go-live, so any claim that ages past the limit is unrecoverable. Freeze new billing rule changes for the 30 days before cutover.
Should I outsource cardiology billing during an EHR migration?: It's the most common reason cardiology practices switch. An outside team stays productive on day one while in-house staff learn the new charting workflow, which protects against the 30–60 day A/R extension MGMA reports. Compare pricing against your current cost to collect — in-house billing typically runs 6–10% of collections once salaries, benefits, and clearinghouse fees are counted.