CPT 93272: How to Bill the Event Monitor Interpretation in 2026

CPT 93272 is the professional component of an external event monitor: the physician’s or qualified health care professional’s review and interpretation of up to 30 days of transmitted ECG data, with a signed report. You bill it without modifier 26 or TC.

At a $23.71 national rate, the read is a small line on the claim. It’s also the event monitor CPT code payers deny when a monitoring company or a second reader has billed the same episode first.

If you bill ambulatory cardiac monitoring for cardiologists, you need four answers before this line goes out. They cover who owns the read, whether a modifier belongs on it, which date and diagnosis your MAC expects, and what Medicare pays in 2026. Our cardiology CPT codes guide covers the rest of the code set.

Key Takeaways for 93272 Billing in 2026

• CPT 93272 covers only the read and signed report for a 30-day external event monitor with 24-hour attended monitoring.
• 93272 takes no modifier 26 or TC, because CMS assigns it PC/TC indicator 2 and WPS Article A57476 bars both modifiers.
• Global 93268 fits only when one entity owns the device, staffs attended monitoring, and reads the data; otherwise, each entity bills its own component.
• Medicare’s 2026 national rate is $23.71 (0.71 RVUs × $33.4009), the same in office and facility settings.
• New 2026 LCDs from Noridian, CGS, and Palmetto bar extended ECG patch codes alongside 93270 to 93272 for the same monitoring period.
• WPS swaps I49.8 for I49.81, I49.82, and I49.89 on its covered diagnosis list starting October 1, 2026.

What Is CPT Code 93272 and What Is It Used For?

CPT 93272 reports the physician’s review and interpretation of an external, patient-activated or auto-activated event monitor worn for up to 30 days with 24-hour attended monitoring. Its purpose is to turn captured rhythm events into a signed report the ordering physician can act on.

The device is an external loop recorder. A cardiologist orders one when palpitations, dizziness, or fainting spells come days apart, too far apart for a 48-hour Holter to catch. The recorder’s memory loop saves rhythm from before and during each trigger, and technicians at a monitoring center watch transmissions around the clock.

Picking the cardiac event monitor CPT code starts with who did the work. CPT splits the service into global 93268 and three components, and 93272 is the professional component your cardiologist bills for reading the strips and signing the report.

What the 93272 Read Includes

Your cardiologist’s read covers all the physician work in the episode, from the first transmitted strip to the final signature on the report:

• Review of the transmitted strips and the monitoring center’s reports
• Correlation of rhythm events with the patient’s symptom log, where one exists
• Interpretation of the findings
• A signed final report

Hook-up belongs to 93270. Receipt and analysis of transmissions at the monitoring center belong to 93271, so a practice that reads the data but doesn’t run the monitoring bills 93272 alone.

Why Some Sources Describe 93272 as a Routine ECG Read

The CMS 2026 relative value files list 93272 with the short descriptor “Ecg/review interpret only.” In the same release, RVU26D, the file PPRRVU2026_Oct_nonQPP gives 93270 the short descriptor “Remote 30 day ecg rev/report,” the same label CMS uses for 93228.

Read that label without the full descriptor and 93272 looks like any ECG read, so some code lookup sites treat it that way and suggest modifier 26. Routine 12-lead tracings use a different EKG interpretation CPT code, covered in our CPT 93010 ECG interpretation guide. 93272 belongs to event monitor episodes and nothing else.

What Is the Description of CPT Code 93272?

“External patient and, when performed, auto activated electrocardiographic rhythm derived event recording with symptom-related memory loop with remote download capability up to 30 days, 24-hour attended monitoring; review and interpretation by a physician or other qualified health care professional.”

In plain terms, the 93272 CPT code description covers one piece of work: the physician’s review of up to 30 days of external event monitor data and the signed report that follows. The words before the semicolon are the stem that 93268, 93270, and 93271 share, and the words after it define 93272.

CPT code 93272 description, broken into billing terms

What 24-Hour Attended Monitoring Requires

WPS Article A57476 sets the standard for 24-hour attended monitoring. A technician, nurse, or physician trained in ECG receives the transmissions, and a physician is available 24 hours a day for immediate consultation. Batching overnight transmissions for a morning review doesn’t meet it.

CMS NCD 20.15 doesn’t cover the time-sampling mode, where the device records on a schedule instead of on symptoms. If your vendor skips 24-hour staffing, the 93272 CPT code doesn’t apply. The AAPC event monitor Q&A, citing CPT Assistant Vol. 21, No. 10, says to report unlisted code 93799 instead.

Older Descriptor Wording You’ll Still See

You’ll still find older articles and payer policies describing this family with phrases like “pre-symptom memory loop” and “per 30-day period.” Those phrases refer to the same codes, 93268 to 93272. Code the claim from the current descriptor. If a payer policy still quotes the old wording, check for a newer version.

Where 93272 Fits in the Event Monitor Code Family

CPT 93272 is one of four codes that split a single external event monitor service. 93268 is the global service, 93270 is the recording, 93271 is transmission and analysis, and 93272 is the professional review and interpretation.

Each event monitor CPT code in this set has a CMS PC/TC indicator that marks it as global, technical component only, or professional component only. The code split below matches Noridian’s monitoring billing table, and the indicators come from CMS release RVU26D.

Add the three components together and you get the global code’s 5.08 total RVUs (0.25 + 4.12 + 0.71). In CMS’s math, CPT code 93268 is the whole service, and CPT code 93271 is its largest piece, because the monitoring center carries most of the practice expense.

Global 93268 or Components: How to Decide

Answer three questions from the chart and your vendor contracts before you choose between the global code and the components:

1. Device: does your practice own the monitor?
2. Monitoring: does your practice staff 24-hour attended monitoring?
3. Read: does your cardiologist interpret the data and sign the report?

Three yes answers mean you report 93268 once per episode. AAPC notes that the global code requires owning the equipment. The 93268 CPT code description already includes review and interpretation, so adding 93272 bills the read twice.

Any no answer means each entity bills its own piece, and none of them bills 93268. If your office places the monitor and your cardiologist reads it, you’ll report CPT codes 93270 and 93272, and the monitoring center reports 93271. Our CPT 93270 hook-up guide covers the recording side.

Who Bills CPT 93272? Four Common Setups

The physician or qualified health care professional who reviews and interprets the event monitor data bills 93272, as long as no one reports global 93268 for the same monitoring episode. In practice, you sort out the rest by mapping who owns the monitor and who staffs the center.

NCD 20.15 covers separate physician services only when the patient’s attending or consulting physician furnishes them, IDTF services aside. If a monitoring company routes reads to a physician who has never seen the patient, that 93272 line carries coverage risk even with a clean report.

Setup 1: Your Practice Reads a Monitor From an Outside Monitoring Center

The monitoring company supplies the device and staffs the center, so it bills CPT code 93271, and your practice bills 93272 for the read. 93270 goes to whoever performs the hook-up, which may be your staff or the company’s technician.

Before billing CPT code 93272, confirm the company isn’t also billing the read under its own contracted physician. If you read for several monitoring companies, keep a payer-by-payer map of who bills which code; that map is standard setup work in cardiology medical billing.

Setup 2: Your Practice Owns the Monitors and Runs the Attended Center

Your practice reports CPT code 93268 once per episode and doesn’t add 93272, since the global code already pays for the read. A common mistake is a charge-entry template that drops both codes onto the claim after the cardiologist signs the report.

Setup 3: An IDTF Bills the Service

Under WPS Article A57476, an IDTF bills the total service only when the interpreting physician works for it as an employee or contractor. That physician can’t bill the read on a claim of their own, and WPS wants the physician’s name and address on file with its enrollment unit.

Without a reassignment letter on file, WPS denies the IDTF’s professional claims. Outside WPS jurisdictions, ask your MAC how it handles IDTF enrollment and reassignment before the first claim goes out, since the article’s rules bind only WPS providers.

Setup 4: A Hospital-Based Cardiologist Reads for an Outpatient Department

A hospital-based cardiologist bills 93272 on the professional claim, while the hospital reports its technical portion on its facility claim. In Noridian, CGS, and Palmetto jurisdictions, confirm the patient wore the monitor outside any facility, because the 2026 LCDs exclude facility-based cardiac monitoring.

For a hospital outpatient, readers in most cases use POS 22 (on campus) or POS 19 (off campus), based on the CMS place of service codes. Our guide to POS 22 billing rules covers the campus distinction. Confirm the default with your MAC and the hospital’s billing office.

The rule: one read, one 93272, one billing entity per monitoring episode, and never alongside 93268.

If your cardiologists read monitors for patients sent by outside monitoring companies, we can run a claim-level check of the last 90 days to see whether anyone else billed the same episode. That check is part of our cardiology revenue cycle management work.

Does 93272 Need a Modifier?

No. CPT 93272 doesn’t take modifier 26 or TC, because CMS assigns it PC/TC indicator 2 (professional component only), and WPS Article A57476 tells providers not to use either modifier on 93268 to 93272.

Why Modifier 26 Gets Denied on 93272

Modifier 26 splits the professional component off a global code, and 93272 has no technical half to split off. Payers treat 93272 with modifier 26 as an invalid pairing and deny the line, often as CO-4. The Medi-Cal cardiology manual also bars split-bill modifiers on 93268 to 93272.

Billers make the 93272 CPT code modifier error out of habit. A biller who adds 26 to hospital echo reads billed as 93306 carries that habit over to event monitor reads and may build it into the charge template. Our modifier 26 billing guide lists the codes where 26 belongs.

Modifiers That Can Apply to 93272

Outside a payer-specific instruction, only liability and NCCI edit modifiers belong on 93272, and each one needs a specific trigger, such as a signed ABN or a procedure-to-procedure edit.

The rule: bill 93272 with no modifier unless liability (GA, GZ, GY) or an NCCI edit (59, XU) calls for one.

Date of Service, Units, and Frequency Rules for CPT 93272

Medicare doesn’t publish one national date-of-service rule for 93272. The date depends on your MAC and payer, while units and frequency follow the 30-day descriptor and each MAC’s overlap rules for the same monitoring period.

Which Date of Service to Report for the Read

WPS Article A57476 sets date rules for three groups of Holter and telemetry codes and gives none for 93268 to 93272:

• 93224 global Holter: the date of physician review
• Holter components, including the 93227 read: the date each service took place
• 93228 and 93229 telemetry: the date the patient first went on the monitor

Some billers date 93272 on the day the physician signs the report, and at least one payer requires the date the patient removed the monitor. Item 24A of the claim form holds whichever date your payer wants, as our CMS-1500 date fields walkthrough shows.

Confirm the date rule with each payer in writing. Keep the hook-up, removal, and read dates in the chart, and date each component so all of them point to the same episode.

One Unit per Monitoring Episode

The descriptor covers up to 30 days, so one episode is one unit of 93272, even when the patient returns the monitor on day 9. Interim reviews fall under that same unit, which means a mid-month read and a final read still add up to one 93272.

Check the current NCCI MUE value before you build a unit edit in your billing system, since CMS updates the MUE tables each quarter. CMS applies most MUEs per date of service, so the edit won’t catch a second read billed two weeks later.

Overlap Rules With Holter, Patch, and Telemetry Codes

Noridian Article A60279, Palmetto Article A60286, and CGS Article A60292 say not to report 93241 to 93244 or 93245 to 93248 with 93270, 93271, or 93272 for the same monitoring period. Their lists also include 93224 to 93229, 99445, 99453, 99454, and 0937T to 0940T.

WPS covers a wearable monitor or a monitor worn up to 48 hours for the same dates of service, but not both. Noridian’s JF billing page adds its own rules: you bill monitoring codes in sets, you can’t complete two sets within 29 days of each other, and overlap denials carry no appeal rights.

Before you bill the read, look for patch, Holter, and mobile cardiac telemetry claims from other providers in the same window. If a patient switches from an event monitor to a patch mid-month, ask the payer how it defines the monitoring period before you bill both.

Payer Frequency Limits

Horizon NJ Health won’t pay 93268 to 93272 billed more than once in six months by any provider, according to its Horizon NJ Health policy revised June 26, 2025. That limit covers Horizon’s New Jersey Medicaid managed care members, so don’t apply it to Medicare claims.

Other plans set their own limits. Recheck them at each contract renewal, and use the CO-151 row in the denial table below when a frequency denial comes back.

The rule: one 93272 per monitoring episode, no overlapping device codes, and dates that match what your payer expects.

Medical Necessity and ICD-10 Codes That Support 93272

Medicare covers CPT 93272 when the chart shows symptoms or conditions that justify ambulatory cardiac monitoring, a treating physician ordered it, the device has FDA clearance, and the claim carries a diagnosis on your MAC’s covered list. Miss one of those four and a clean report won’t save the claim.

What Medicare Expects in the Chart

NCD 20.15 covers ECG services when the patient has signs or symptoms, and it doesn’t cover screening. Noridian’s L40255 goes a step further and denies tests that the treating physician or non-physician practitioner didn’t order.

The final L40255, effective June 21, 2026, lists eight covered indications, and the order and notes should point to at least one of them (the two embolic indications share a line here):

• Infrequent symptoms more than 24 hours apart
• Antiarrhythmic drug dosing
• Non-lacunar cryptogenic stroke or TIA of undetermined origin
• Monitoring after arrhythmia surgery or ablation
• Asymptomatic PVCs or NSVT in listed cardiomyopathies and channelopathies
• Embolic-appearing MI or other systemic emboli
• Assessment before or after TAVR

CGS and Palmetto use the same framework in their 2026 LCDs. L40255 also treats event recorders as not reasonable and necessary for patients who are unresponsive, comatose, or too confused to recognize symptoms or activate the recorder.

ICD-10 Codes on the WPS Covered List, Including the October 1, 2026 Update

WPS Article A57476 Group 1 lists 159 ICD-10 codes that support memory loop recordings (93268 to 93272). We checked each code in this table against that list. For the I48 codes, our AFib ICD-10 coding guide covers the specificity rules.

Effective October 1, 2026, WPS revision R9 deletes I49.8 and adds I49.81 (Brugada syndrome), I49.82 (ventricular bigeminy), and I49.89 (other specified cardiac arrhythmias). From that date, I49.8 isn’t billable, and payers will reject claims that carry it.

The CMS FY 2027 ICD-10-CM files apply to encounters from October 1, 2026, through September 30, 2027. For the cryptogenic stroke indication, Novitas Article A59268 points coders to I63.9, and other MACs may not give the same instruction, so check yours.

FDA-Cleared Devices and What Isn’t Covered

L40255 requires FDA-cleared devices used according to CPT standards and the device instructions, with attended surveillance where it applies. Novitas L39490 and First Coast L39492 exclude devices without FDA clearance, including hand, wrist, and smartphone-based devices that a physician didn’t prescribe.

The UnitedHealthcare MA AECG policy (MMP109.19, effective September 1, 2026) applies the same device standard. It also requires that a standard ECG and physical exam haven’t explained the symptoms.

Which 2026 Medicare Policy Applies to Your 93272 Claims?

Your MAC decides which LCD governs CPT 93272. Noridian, CGS, and Palmetto moved to new cardiac monitoring LCDs in June 2026, while WPS, Novitas, and First Coast still use their earlier event monitor policies.

Find your MAC by the state where you furnish the service, then read both the LCD and its billing article. The LCD sets coverage, and the article carries the coding rules and the diagnosis list. Our explainer on how LCDs work covers the difference in more detail.

Different MACs now judge the same event monitor claim by different rules. If your cardiologists read for patients in more than one jurisdiction, we can run an event monitor claims audit to show which lines would fail each MAC’s overlap and diagnosis checks.

CPT 93272 Reimbursement in 2026

The 2026 national Medicare rate for 93272 is $23.71: 0.71 total RVUs (0.51 work, 0.18 practice expense, 0.02 malpractice) times the $33.4009 conversion factor, the same in office and facility settings. Facility and non-facility practice expense values match, so place of service doesn’t change the national amount.

Source: CMS RVU26D, PPRRVU2026_Oct_nonQPP, non-QP conversion factor

The 93268 CPT code pays $169.68, and the three components pay $169.67 combined. Splitting the service changes which entity collects each piece, while the episode’s total stays the same to within a cent.

Qualifying APM Participants (QPs) use the $33.57 conversion factor, which puts 93272 at about $23.83. Your CPT code 93272 Medicare payment also depends on locality, because geographic adjustments (GPCIs) move the amount up or down. Medicare pays 80% after the Part B deductible, and the CMS PFS Look-Up Tool shows your local figure.

CMS gives 93272 multiple procedure indicator 0, so Medicare doesn’t reduce the read when you bill it with other procedures, while the technical codes carry indicator 6. Both conversion factors come from the CY 2026 PFS final rule.

Commercial 93272 CPT code reimbursement depends on your contract, and plans often set it as a percentage of Medicare. Pull the contracted rate for 93272 on its own line, since some fee schedules list only the global code.

How 93272 Compares With Other Cardiac Monitoring Reads

CPT 93272 is one of several read codes for external cardiac monitoring, and the right one depends on the device and how it records: event monitor, mobile cardiac telemetry, Holter, or extended continuous ECG. Pick the wrong family and the payer denies the read, however complete the report.

Source: CMS RVU26D

CPT code 93228 is the telemetry read. For patches, the extended Holter monitor CPT code for the read is CPT 93244 or 93248, depending on wear time. Mixing up these reads is a coding error that specialty-matched cardiology coders catch before submission.

The 30-Day Event Monitor CPT Code Depends on the Device, Not Wear Time

The CPT code for event monitor reads doesn’t change with wear time. A memory-loop event recorder worn 7, 14, or 30 days stays in the 93268 to 93272 family. That makes the 7-day event monitor CPT code and the 14-day event monitor CPT code the same set as the CPT code for a 30-day event monitor.

Noridian A60279 and Palmetto A60286 list event monitors in their device tables as devices that “may be worn for up to 30 days.” Continuous recorders work the other way, and their codes change with wear time:

External vs. Implantable Loop Recorder Codes

The loop recorder CPT code depends on whether the device sits on the skin or under it. You bill an external loop recorder as 93268 to 93272. Implantable loop recorders use 33285 for insertion and 33286 for removal. Remote interrogation goes to 93298 and in-person interrogation to 93291, and our CPT 93298 remote monitoring guide covers that side.

The rule: choose the code family from the device and how it records, then match the read code to that family.

Common 93272 Denials and How to Fix Them

You can trace most CPT 93272 denials to four problems: a component modifier, a read billed alongside the global code, an overlapping or repeat episode, or a diagnosis that doesn’t support the read. Each one has a fix you can make before the claim goes out.

The issue with Noridian overlap denials is that they carry no appeal rights, so you have to catch overlaps before submission. If the same CARC keeps coming back on 93272, fix the charge entry setup before reworking claims one by one, which is where our denial management services team starts.

What Changed for 93272 in 2026 and What to Watch in 2027

CPT 93272 itself didn’t change in 2026, but the rules around it did: new LCDs, a new ICD-10 list, and new conversion factors, with 2027 rates still pending. Put these dates on your compliance calendar:

• January 1, 2026: conversion factors of $33.40 (non-QP) and $33.57 (QP) took effect.
• June 21, 2026: Noridian L40255 and Article A60279 took effect.
• June 28, 2026: CGS L40244 and A60292, plus Palmetto L40257 and A60286, took effect.
• August 26, 2026: CMS posted RVU26D, and 93272 stayed at 0.71 RVUs.
• September 9, 2026: the AMA released CPT 2027, effective January 1, 2027, and AMA’s CPT 2027 announcement names no event monitor changes.
• October 1, 2026: WPS revision R9 swaps I49.8 for I49.81, I49.82, and I49.89, and Palmetto’s A60286 revision takes effect.
• Pending: the CY 2027 PFS final rule. CMS published the CY 2027 PFS proposed rule (CMS-1848-P) on July 16, 2026, closed comments on September 14, 2026, and will set 2027 rates in the final version.

Documentation Checklist for the 93272 Interpretation Report

A payable CPT 93272 claim rests on seven items in the chart. Noridian’s L40255 sets the order requirement and Article A60279 sets the legible signature rule, so expect reviewers in those jurisdictions to check both:

• A signed order from the treating physician or non-physician practitioner that names the monitor type
• Symptoms or condition, with how often they occur
• Device type: an external event monitor with a memory loop and a 24-hour attended center
• Hook-up, removal or last-transmission, and read dates
• Interpretation findings tied to transmitted events and reported symptoms
• A signed, dated report with the interpreting physician’s legible name and signature
• ICD-10 codes on your MAC’s covered list for that date of service

CPT 93272 FAQs

Can CPT codes 93270 and 93272 be billed together?

Yes, when your practice performs the hook-up and the read and a separate monitoring center bills 93271. Don’t pair either code with 93268 for the same episode, because the global code already includes the recording and the read.

Can 93000 be billed the same day as 93272?

Yes, in most cases, when the physician orders and documents the 12-lead ECG for its own reason, since it’s a separate service from the event monitor read. Check the current NCCI procedure-to-procedure table for the pair and your payer’s policy before you add any modifier. Our CPT 93000 billing rules guide covers the 12-lead side.

Does 93272 need prior authorization?

No, not under Original Medicare, where payment rests on medical necessity and none of the MAC policies we reviewed require it. Medicare Advantage and commercial plans set their own rules. Fallon Health’s monitoring policy requires none for 93268 to 93272 as of August 1, 2026, but requires it for mobile telemetry, so run prior authorization checks before the hook-up.

What if the patient returns the monitor before 30 days?

Report one unit. The descriptor covers up to 30 days, so a shorter episode is still one episode. Skip modifier 52 unless the payer asks for it. Document the removal date and the reason in the chart. If the recorder captured no usable data, check with the payer before you bill the read.

Is CPT code 93272 still valid in 2027?

Yes. The AMA’s CPT 2027 release on September 9, 2026, names no event monitor changes, so 93272 carries into 2027. Confirm it against the CPT 2027 codebook, and update your fee schedule once the CY 2027 PFS final rule posts.

Getting the Event Monitor Read Paid the First Time

Before the 93272 CPT code line goes out, run three checks: the right setup, global or components; no component modifier; and dates and diagnoses that fit your MAC’s 2026 policy. If your claim scrubber allows custom edits, start with one that flags 93268 and 93272 for the same patient within 30 days.

For a second set of eyes on your event monitor claims before they go out, our cardiology billing services team can review them against your MAC’s current rules. At One O Seven RCM, we handle the full set, from hook-up to read.

CPT codes and descriptions are copyright American Medical Association. All rights reserved. This guide is for education and doesn’t replace your MAC’s policies, your payer contracts, or your compliance team’s advice.

Last updated September 29, 2026: rates from CMS RVU26D (October 2026 release); MAC policies checked in the CMS Medicare Coverage Database; WPS revision R9 and Palmetto A60286 revision noted for October 1, 2026.