The 93224 CPT code reports a complete external Holter monitor service: up to 48 hours of continuous rhythm recording and storage, scanning analysis with a report, and physician review and interpretation, all on one global line with no modifier 26 or TC. You bill it once per episode.
As a Holter monitor CPT code, 93224 pays $70.48 under the 2026 Medicare fee schedule, about 24% less than the $92.88 it paid in 2018. With a line that small, your margin depends on clean claims. Most lost Holter money traces back to modifier errors, date-of-service mismatches, and overlapping monitors.
You’ll find the full Holter monitor billing path below: global versus components, modifier 52, date-of-service rules, ICD-10 support, payer limits, and the denials we see most. If you need the rest of the cardiology code set, start with our cardiology CPT codes guide.
| Key TakeawaysThe 93224 CPT code covers up to 48 hours of recording, and WPS Article A57476 requires modifier 52 when recording runs under 12 hours.Modifiers 26 and TC never go on 93224 to 93227, because the component codes already split the work.The 2026 national non-facility rate is $70.48 (2.11 RVUs × $33.4009).The global code takes the date the physician reviewed the study, and each component takes the date of its own service.WPS replaced I49.8 with I49.81, I49.82, and I49.89 for dates of service on or after October 1, 2026.Recording past 48 hours moves to 93241 to 93248. |
| Code Definition | |
| Field | Detail |
| Code | 93224 |
| Short descriptor (paraphrased) | External ECG recording up to 48 hours by continuous rhythm recording and storage, including recording, scanning analysis with report, and review and interpretation by a physician or other qualified health care professional |
| Also called | Holter monitor global, 24-hour Holter, 48-hour Holter, ambulatory ECG recording, continuous ambulatory electrocardiography |
| Maximum wear time | 48 hours, one unit per episode |
| Components | 93225 (recording), 93226 (scanning analysis with report), 93227 (review and interpretation) |
| PC/TC indicator | 4 (global service only) |
| 2026 national rate | $70.48 non-facility (2.11 RVUs × $33.4009) |
| Modifier rule | No 26 or TC; modifier 52 when recording runs under 12 hours |
| Governing policy | NCD 20.15; WPS LCD L34636 and Billing Article A57476 |
What Is CPT Code 93224?
The 93224 CPT code is the global CPT code for Holter monitor services: external ECG recording for up to 48 hours through continuous rhythm recording and storage. It bundles three pieces of work, and one billing entity has to furnish all three to report it.
The AMA revised the descriptor effective January 1, 2025, and WPS logged the change in A57476 revision R7. Older articles still quote the previous wording. Code from the current descriptor in your 2026 codebook, since new coders tend to copy whatever the charge template says.
What the 93224 Service Includes
Each piece of ambulatory ECG monitoring under 93224 has its own component code, and that split matters the moment a second company touches the study:
- Recording: hookup, recording, and disconnection (93225)
- Scanning analysis: review of the stored data with a written report (93226)
- Interpretation: the physician’s review and signed read (93227)
If your practice handles all three, you bill 93224 once. Hand any piece to a vendor, a hospital, or an IDTF, and the claim splits into components.
What “Up to 48 Hours” Means for a 24-Hour or 48-Hour Holter
There’s no separate 24-hour Holter monitor CPT code or 48-hour Holter monitor CPT code. The 93224 descriptor allows up to 48 hours, so both studies bill the same way. Your payer looks at the order and the documentation to decide whether it pays for the longer study.
NCD 20.15 treats 24 hours as the standard Holter recording period and asks for documented medical necessity for anything longer. In practice, a 48-hour study needs that reason in the order, such as palpitations the patient didn’t have during an earlier 24-hour run.
At the short end, a recording under 12 hours takes modifier 52. Past 48 hours, you leave 93224 behind and move to the 93241 extended monitoring family, which has its own components and its own rates.
The rule: 93224 for 12 to 48 hours, modifier 52 under 12 hours, 93241 or higher over 48 hours.
93224 vs 93225, 93226, and 93227: Global Code or Components
If one entity does the recording, the scanning, and the read, it bills the 93224 CPT code once. Split the work between two companies and the claim changes. Each one bills its own component, and nobody bills the global code for that episode.
Holter monitor CPT code components, 2026 national non-facility values (Source: CMS 2026 PFS relative value files)
| Code | Component | Work covered | PC/TC | 2026 RVUs | 2026 rate | Typical biller |
|---|---|---|---|---|---|---|
| 93224 | Global | Recording, scanning analysis with report, and interpretation | 4 | 2.11 | $70.48 | Practice or IDTF that furnishes all three pieces |
| 93225 | Recording | Hookup, recording, and disconnection | 3 | 0.54 | $18.04 | Entity that places the monitor |
| 93226 | Scanning analysis | Scanning analysis with report | 3 | Check current RVU file | Check PFS Look-up Tool | Scanning vendor or IDTF |
| 93227 | Interpretation | Physician review and interpretation | 2 | 0.53 | $17.70 | Reading physician |
We left the 93226 value out of the table on purpose. CMS posted a revised 2026 RVU file for the October quarter, so pull 93226 from the current file before you load it into your fee schedule.
If you bill 93224 alongside 93225, 93226, or 93227 for the same episode, you’re billing the same work twice, and payers deny the extra line as bundled. Our guide to CO-97 bundling denials covers the correction and resubmission.
Does CPT 93224 Need a Modifier?
No. CPT 93224 is a global-only code (PC/TC indicator 4), and WPS Article A57476 bars modifiers 26 and TC on 93224 to 93229. Modifier 52 is the routine exception, used for continuous recording under 12 hours. Liability modifiers such as GA or GZ come into play when an ABN applies.
Some sources tell you to add 26 or TC to Holter codes. Those pages mix up Holter codes with echo and imaging codes, which carry PC/TC indicator 1 and split with 26 and TC. Our modifier guide explains where modifier 26 belongs and which indicators block it.
Who Bills 93224 and Who Bills the Components
Before you pick CPT code 93224 or its components, confirm who owned the device, who ran the scan, and who read the study. If your team bills for several specialties, this ownership check is a good step to hand to specialty-matched cardiology coders.
Billing split for a Holter study, by scenario (Source: WPS Article A57476)
| Scenario | Billing split |
|---|---|
| Your practice owns the monitor, scans the data in your office, and reads the study | Your practice bills 93224 |
| Your practice places the monitor, an outside vendor scans, and your physician reads | Your practice bills 93225 and 93227; the vendor bills 93226 |
| Hospital outpatient department | The hospital bills the technical work on its facility claim; the cardiologist bills 93227 |
| Independent diagnostic testing facility (IDTF) | The IDTF bills 93224 when the interpreting physician is its employee or contractor and a reassignment is on file; the claim names that physician in Box 24K |
AAPC, citing CPT Assistant, explains that the global code assumes the billing entity owns the equipment. Treat that as expert guidance rather than a CMS rule, and keep your vendor contracts on file in case a payer asks who owned the device.
The rule: one episode, one billing structure. Bill global or bill components, never both.
If your cardiologists read for outside monitoring vendors, pull a claim-level report for the last 90 days and sort it by patient and date. Duplicate episodes show up fast that way. We run the same check as part of cardiology revenue cycle management for groups that want it done for them.
How to Bill a Holter Monitor in Five Steps
Most Holter monitor billing guidelines come down to five checks. Run them in order on each study, and the Holter monitor CPT code you choose will match what the chart supports.
- Confirm the order and a covered diagnosis. The treating physician’s signed order should name the symptom or rhythm problem, and that diagnosis needs to appear on your MAC’s covered list for the date of service.
- Pick global or components. Confirm who owned the device, who scanned the data, and who read the study. One entity doing all three bills the 93224 CPT code; anything else splits into 93225, 93226, and 93227.
- Record hookup and removal times. Pull both times from the device log or the tech note and calculate the total hours. Those hours decide the code family, the modifier, and whether 93224 fits at all.
- Set the date of service by code. The global line takes the read date, while each component line takes the date its own work happened. Billing everything on the hookup date is a common way to land a rejection.
- Check for overlap before you submit. Look back 30 days on the patient’s account for a patch, an event monitor, mobile telemetry, or an earlier Holter. Overlap denials are expensive, and some MACs won’t hear an appeal on them.
Date of Service Rules for 93224 and Its Components
WPS Article A57476 assigns a different date to each line, and coders who use one date for everything run into rejections and timely filing trouble:
- CPT 93224 uses the date the physician reviewed the study
- 93225 uses the date of the recording
- 93226 uses the date of the scanning analysis
- 93227 uses the date the physician performed the interpretation
Picture a 48-hour study hooked up on a Monday, scanned on Wednesday, and read the following Monday. Your global claim carries that second Monday. Bill it on hookup day and you’re claiming a read that hasn’t happened yet.
On split claims and IDTF claims, A57476 also asks you to identify the interpreting physician in Box 24K. Leave that field blank and the payer has no way to match the read to a physician who can bill it.
The rule: global uses the read date; components use their own dates.
The 12-Hour Floor and Modifier 52
Under 12 hours of recording, you bill 93224 with modifier 52, as A57476 and CPT Assistant both state. From 12 to 48 hours, 93224 goes out with no modifier. Either way, you report one unit per episode.
You’ll see some pages claim modifier 52 applies to anything under 48 hours. It doesn’t. A 30-hour study is a full 93224, and adding 52 invites a reduced payment you had no reason to accept.
Noridian’s monitoring billing rules add another layer for Jurisdiction F. Noridian wants you to bill monitoring codes in sets, and it won’t accept a second set that finishes within 29 days of the first. Overlap denials there carry no appeal rights, so confirm the matching rule with your own MAC.
CPT 93224 Reimbursement in 2026
CPT 93224 pays $70.48 on the 2026 Medicare fee schedule at the national non-facility level. The math is 2.11 total RVUs × $33.4009, the conversion factor for clinicians who aren’t qualifying APM participants. QPs get about $70.83 at the $33.5675 factor.
Medicare pays 80% of the allowed amount after the Part B deductible, and the patient or a secondary plan owes the rest. Your locality’s GPCI moves the allowed amount up or down, so check the PFS Look-up Tool for your exact figure.
93224 reimbursement, 2018 vs 2026 (Source: CMS PFS relative value files)
| Year | Total RVUs | Conversion factor | National non-facility rate |
|---|---|---|---|
| 2018 | 2.58 | $35.9996 | $92.88 |
| 2026 | 2.11 | $33.4009 | $70.48 |
Source: CMS relative value files, 2018 and 2026 releases. Confirm the 2026 values against the latest quarterly file before you update your fee schedule.
That’s a 24% drop over eight years. At $70.48 a study, 20 denials out of 400 studies a year cost about $1,410 before anyone spends an hour on rework. On this code, your denial rate moves the margin more than the fee schedule does.
Commercial contracts often price as a percentage of Medicare. Pull your fee schedule and confirm it lists the 93224 CPT code and each component as separate lines, because a contract that names only the global code leaves your split claims without a negotiated price.
Multiple Procedure Reduction on Same-Day Cardiology Tests
Medicare applies a multiple procedure payment reduction to the technical portion of certain diagnostic cardiovascular services furnished to the same patient on the same day. CMS flags those codes with MULT PROC indicator 6 and cuts the technical payment on the second and later services by 25%.
Check the MULT PROC column for 93224 to 93227 in the current RVU file first. If a stress echo and a Holter hookup share a date and both codes carry indicator 6, expect a reduced line on the remittance. That cut follows the policy as written, so don’t appeal it.
Purchased Scans and the Anti-Markup Rule
Some practices bill global 93224 but buy the scanning from an outside vendor. Under 42 CFR 414.50, Medicare then caps payment for the purchased piece at the lowest of three amounts:
- the vendor’s net charge to your practice
- your practice’s actual charge for the test
- the fee schedule amount
The cleanest fix is to have the vendor bill 93226 itself. Anti-markup is a Medicare rule, though some commercial contracts follow Medicare payment methodology, so read your contract language before you assume either way.
If you buy scans and bill global, compare one quarter of vendor invoices against your Medicare payments. You’ll see fast whether the cap is trimming your checks. We can run a Holter claims audit across every payer if you’d rather not do it by hand.
ICD-10 Codes That Support 93224, Including the October 1, 2026 Update
Medicare pays the 93224 CPT code when three things line up: the treating physician ordered the study, the chart documents symptoms or a rhythm condition, and the claim carries a diagnosis from your MAC’s covered list. NCD 20.15 doesn’t cover ambulatory ECG monitoring done as screening.
For WPS states, the CPT 93224 LCD is L34636, and its billing article, A57476, holds the covered diagnosis list in Group 2. These examples come from that list:
Covered diagnosis examples (Source: WPS A57476, Group 2)
| Category | ICD-10-CM codes and descriptions |
|---|---|
| Symptoms | R00.1 Bradycardia, unspecified; R00.2 Palpitations; R06.02 Shortness of breath; R07.9 Chest pain, unspecified; R42 Dizziness and giddiness; R55 Syncope and collapse |
| Arrhythmias | I47.10 Supraventricular tachycardia, unspecified; I47.19 Other supraventricular tachycardia; I48.0 Paroxysmal atrial fibrillation; I48.91 Unspecified atrial fibrillation; I49.1 Atrial premature depolarization; I49.3 Ventricular premature depolarization; I49.5 Sick sinus syndrome |
| Conduction disorders | I44.1 Atrioventricular block, second degree; I45.81 Long QT syndrome |
| TIA and stroke history | G45.9 Transient cerebral ischemic attack, unspecified; Z86.73 Personal history of transient ischemic attack (TIA), and cerebral infarction without residual deficits |
Codes that won’t work under WPS: these three still show up on older cheat sheets and charge templates, and each one will sink a 93224 line for current dates of service.
- I49.8, which became a header code on October 1, 2026
- I47.1, a header code since October 1, 2023
- I49.9 and R00.0, which the WPS list for 93224 to 93229 leaves out
Palpitations rank among the most common reasons physicians order a Holter, so the symptom code deserves the same care as any rhythm code. Our guide to R00.2 palpitations coding covers when to use it and when a confirmed arrhythmia should replace it.
Revision R9 of A57476 took effect October 1, 2026. It removed I49.8 and added I49.81 (Brugada syndrome), I49.82 (ventricular bigeminy), and I49.89 (other specified cardiac arrhythmias not elsewhere classified), which match the FY2027 ICD-10-CM files for dates of service from that day forward.
Atrial fibrillation orders need the type the physician documented. Paroxysmal, persistent, permanent, and unspecified AFib each carry a different code, and the AFib type codes guide lays out the full I48 set.
Commercial payers draw the line in a different place. Aetna CPB 0019 lists I49.01 through I49.9 as covered, so I49.9 can pass with Aetna and still fail with WPS. Check the payer’s list on each claim instead of reusing one cheat sheet for everyone.
The rule: code the indication from the order at full specificity, then check it against your MAC’s list for the date of service.
Medicare MAC and Commercial Payer Rules for Holter Monitoring
Three layers of Holter monitor billing guidelines apply to CPT code 93224. NCD 20.15 sets the national floor, your MAC’s LCD and billing article set the coding rules, and commercial plans add their own frequency limits on top.
Payer rules for ambulatory ECG monitoring under 93224 (Sources: NCD 20.15, WPS L34636 and A57476, Noridian JF, Aetna CPB 0019)
| Payer | Policy | Rule that affects 93224 |
|---|---|---|
| CMS national | NCD 20.15 | No coverage for screening. Recording past 24 hours needs documented medical necessity. A separate physician read qualifies for coverage when the attending or consulting physician performs it, with an exception for IDTFs. |
| WPS (J5 and J8) | LCD L34636 and Billing Article A57476 | Date of service set by code; modifier 52 under 12 hours; no 26 or TC; for the same dates of service, Medicare covers a wearable monitor or a monitor worn up to 48 hours, not both; no other ECG monitoring codes alongside 93224. |
| Noridian (JF) | Electrocardiographic monitoring billing page | Bill monitoring codes in sets; a second set can’t finish within 29 days of the first; overlap denials carry no appeal rights. |
| Aetna | CPB 0019, reviewed March 13, 2026 | No more than two Holter studies in six months; Aetna considers recording beyond 48 hours not medically necessary in most cases. |
If the split between an LCD and its billing article is new to you, start with our LCD guide for providers. For WPS, WPS LCD L34636 covers medical necessity, while A57476 holds the coding, modifier, and diagnosis rules.
Other MACs publish their own cardiac monitoring policies, and some include overlap language similar to the WPS rule. Pull the current article for your jurisdiction from the CMS Medicare Coverage Database before you assume the WPS rules carry over.
Aetna’s Holter policy shows how a commercial cap works in practice: Aetna denies a third study inside six months even when the coding is clean. Frequency limits cost the least to catch before hookup, and that’s why we build them into our prior authorization checks.
Holter Monitor CPT Codes by Wear Time: 48 Hours, 7 Days, 14 Days, 30 Days
The hours the device recorded set the Holter monitor CPT code, and the planned wear time on the order doesn’t change that. A 48-hour order returned at 30 hours stays 93224. If the patient pulls a 7-day patch off on day two, it bills by its recorded hours and lands back in 93224.
CPT code for Holter monitor and other ambulatory ECG devices, by recorded wear time (Source: CPT code set; WPS A57476)
| Recorded wear time | Device | Global code | Components |
|---|---|---|---|
| Up to 48 hours | Holter monitor | 93224 | 93225, 93226, 93227 |
| More than 48 hours, up to 7 days | Extended Holter or patch monitor | 93241 | 93242, 93243, 93244 |
| More than 7 days, up to 15 days | Extended Holter or patch monitor | 93245 | 93246, 93247, 93248 |
| More than 15 days, up to 30 days, continuous | Extended continuous ECG recorder | 0937T | 0938T, 0939T, 0940T (Category III; coverage varies by payer) |
| Up to 30 days, memory loop | Event monitor | 93268 | 93270, 93271, 93272 |
| Up to 30 days, real time | Mobile cardiac telemetry | No global code | 93228 (interpretation), 93229 (technical support) |
A 14-day patch lands in the 93245 family, and a 30-day study goes to 0937T or to an event monitor code, depending on the device the physician ordered. Mobile telemetry splits into 93228 and 93229, with no single global line.
Each ambulatory cardiac monitor family follows its own rules for units, dates, and overlap. Our guide to 30-day event monitor billing covers the global event monitor code in detail.
Physicians who read event studies for outside vendors bill the professional piece on its own. You’ll find the rules for that read in our guide to the event monitor interpretation code, including how it differs from the Holter read on 93227.
CPT deleted codes 0295T to 0298T on January 1, 2021, and WPS recorded the change in A57476 revision R2. If a reference still lists those codes for long recordings, it’s out of date.
Common 93224 Denials and How to Fix Them
Most denials we see on the 93224 CPT code trace back to four mistakes: a component modifier on the line, global and component codes on the same claim, overlapping monitoring periods, or a diagnosis your MAC doesn’t list.
CPT 93224 medical claim denials and fixes (CARC = claim adjustment reason code)
| CARC | Problem on the 93224 line | Fix | Guide |
|---|---|---|---|
| CO-4 | Someone appended modifier 26 or TC | Remove the modifier and send a corrected claim | n/a |
| OA-18 | A second 93224 went out for the same episode | Keep one unit per episode and send a replacement claim if the first one needs changes | OA-18 duplicate claims |
| CO-50 | No covered indication, or no order from the treating physician | Add the missing documentation, and appeal when the chart supports it | CO-50 medical necessity |
| CO-11 | The diagnosis doesn’t match the test, such as I49.9 under WPS | Recode from the order and resubmit | CO-11 diagnosis mismatch |
| CO-151 | The study hit a frequency limit, such as Aetna’s two studies in six months | Check the limit before hookup, and appeal with documented necessity where the payer allows it | CO-151 frequency denials |
| Overlap (MAC rule) | A patch, MCT, or event monitor covers the same window | Catch it at scheduling, since Noridian JF gives no appeal rights on overlap | n/a |
Overlap denials are the expensive ones, because prevention is your only fix under some MACs. Before any hookup, have your scheduler scan the last 30 days of the patient’s account for another monitoring code.
| Myth vs Fact | |
| Myth | Fact |
| 93224 needs modifier 26 or TC. | WPS Article A57476 bars both, and 93224 carries PC/TC indicator 4. |
| 93224 is a 24-hour code. | The CPT descriptor allows up to 48 hours, and NCD 20.15 asks for documented necessity past 24 hours. |
| Modifier 52 applies to anything under 48 hours. | A57476 sets the threshold at under 12 hours. |
| 93226 is the interpretation. | Per the CPT descriptors, 93226 is the scanning analysis and 93227 is the interpretation. |
| Recording over 48 hours bills as 0295T to 0298T. | CPT deleted those codes on January 1, 2021 (A57476 R2). Use 93241 to 93248. |
| I47.1 and I49.8 still work. | Both are header codes for current dates of service: I47.1 since October 1, 2023, and I49.8 since October 1, 2026 (A57476 R9). |
If the same CARC keeps coming back on Holter lines, the fix belongs in charge entry, ahead of any rework on individual claims. Our denial management services team traces each repeat denial to the step that caused it and closes that gap.
Documentation Checklist for a Payable Holter Claim
Clean Holter monitor billing starts with the chart. Before the claim goes out, confirm the record holds each of these items, since a payer review will ask for the same set:
- A signed order from the treating physician that states the indication, as 42 CFR 410.32 requires and A57476 cites
- The patient’s symptoms and how often they occur
- Hookup time, removal time, and total hours recorded
- A patient diary matched to the recorded events
- The scanning analysis report
- A signed, dated interpretation, with the interpreting physician named in Box 24K on split or IDTF claims
- Vendor or IDTF paperwork showing who owned the device and who performed the scan
What Changed for 93224 in 2026 and What to Watch in 2027
CMS, WPS, and the AMA changed Holter rules several times over the last two years. Use these dates to spot an outdated template or a fee schedule that someone loaded from an old file:
- January 1, 2025: the AMA revised the CPT 93224 descriptor, and WPS recorded it in A57476 revision R7.
- January 1, 2026: Medicare set two conversion factors, $33.4009 for most clinicians and $33.5675 for qualifying APM participants.
- October 2026 RVU update: CMS posted the RVU26D file for the fourth quarter, so re-check 93224 to 93227 before you load new rates.
- October 1, 2026: A57476 revision R9 swapped I49.8 for I49.81, I49.82, and I49.89, and the quarterly NCCI updates took effect.
- CPT 2027: the AMA’s announcement of the 2027 code set doesn’t list changes to Holter codes. Confirm 93224 to 93227 in your 2027 codebook, and watch the CY 2027 PFS final rule for new RVUs.
93224 CPT Code FAQs
Can 93224 and 93225 be billed together?
No, not for the same episode. 93225 is the recording piece of 93224, so billing both charges the payer twice for one recording. Bill the global code by itself, or bill 93225 with 93226 and 93227 when separate entities handle the scan or the read.
What is the CPT code for a 7-day Holter monitor?
93241 is the global code for recording over 48 hours and up to seven days. Its components are 93242 for the recording, 93243 for scanning analysis with report, and 93244 for review and interpretation. A study that ends before 48 hours bills as 93224 instead.
Is CPT 93229 a surgical code?
No. CPT 93229 sits in the Medicine section of CPT with the cardiovascular monitoring services. It covers the technical support for mobile cardiac telemetry, including connection, surveillance, and data reports, while 93228 covers the physician’s review and interpretation. Neither code carries a global surgical period.
Can 93000 be billed the same day as 93224?
Yes, in most cases, when the physician orders a 12-lead ECG for its own clinical reason, such as a baseline before hookup. Check the current NCCI edits for the pair, and document the separate indication. Our CPT 93000 billing rules cover the rest of the detail.
How often will insurance pay for a Holter monitor?
93224 has no national Medicare frequency count, but MAC overlap rules block a second monitoring period that runs into the first. For CPT code 93224, Aetna allows two studies in six months. Other commercial plans set their own limits, so check the plan before hookup.
Does 93224 need prior authorization?
No, not under Original Medicare. Medicare Advantage and commercial plans vary, and some want authorization for any ambulatory cardiac monitor, with longer studies drawing the most scrutiny. Check at scheduling, since a missing authorization is hard to fix once the patient has worn the device.
Is the 93224 CPT code still valid in 2027?
Yes, based on what the AMA has released so far. The CPT 2027 announcement doesn’t list changes to the 93224 CPT code or any other Holter monitor CPT code. Confirm against your 2027 codebook before January 1, 2027, since smaller descriptor edits don’t always make the headline list.
Getting Holter Claims Paid the First Time
Before any 93224 CPT code line goes out, run three checks. Confirm you’re billing global or components, never both. Strip any 26 or TC. Then match the hours, date of service, and diagnosis to your MAC’s rules.
One scrubber edit does a lot of the work for you. Set it to flag 93224 alongside any of 93225 to 93227, or alongside any other monitoring code, for the same patient within 30 days.
If you’d like a second set of eyes on your Holter claims, One O Seven RCM works with cardiology groups on this kind of cleanup. Our end-to-end RCM for cardiology covers monitoring codes from the order to the final payment.
CPT is a registered trademark of the American Medical Association. CPT codes and descriptions are copyright 2025 American Medical Association. All rights reserved.
Last updated: October 16, 2026. Rates from the CMS 2026 Physician Fee Schedule relative value files; diagnosis rules from WPS Billing Article A57476, revision R9 (effective October 1, 2026).
