CPT 0902T: Mobile ECG Algorithm to Derive QTc Interval

Headline: New CPT code 0902T defines clinician use of an augmentative algorithm to derive QTc from patient-activated mobile ECG recordings.

Lead: CPT code 0902T captures a service in which a clinician applies an augmentative algorithm to analyze heart rhythm data from an external, patient-activated mobile electrocardiogram (ECG) device and derives the QTc interval. This code formalizes a growing area of digital cardiac monitoring and has implications for outpatient arrhythmia evaluation, medication safety monitoring, and remote cardiac care.

Why it matters: The ability to bill for algorithm-assisted QTc derivation recognizes clinician effort in interpreting patient-initiated mobile ECGs and supports broader adoption of mobile cardiac monitoring tools. National payers and Medicare are the primary audiences for coverage and reimbursement policy decisions that affect utilization.

Payers covered: Analysis addresses national payers including Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare.

What readers will learn: The publication reviews the clinical context for QTc measurement using mobile ECGs, documents the scope of CPT code 0902T, and summarizes expected benchmarks and policy considerations for national payers. It outlines typical service settings, clinical applications in ambulatory and remote monitoring, and the operational implications for practices integrating mobile ECG devices and algorithmic analysis.

Clinical context and takeaways: Readers will gain a concise understanding of when CPT code 0902T applies, how it fits into digital cardiac monitoring workflows, and key considerations for payers and providers in billing and coverage discussions.

Billing Code Overview

CPT code 0902T describes a service in which a provider uses an augmentative algorithm to analyze heart rhythm data captured from an external, patient-activated mobile electrocardiogram (ECG) device. The analysis derives the QTc interval, a corrected measurement of the heart’s electrical cycle that is used to assess repolarization and arrhythmia risk.

Service type: Algorithmic cardiac rhythm analysis derived from patient-activated mobile ECG data

Typical site of service: Ambulatory or remote monitoring settings, including telehealth-enabled workflows where patients use a mobile ECG device to capture and transmit rhythm recordings for clinician review and algorithm-based QTc derivation.

Data not available in the input.

Clinical Context

A 62-year-old outpatient with a history of hypertension and a recent start of a QT-prolonging medication presents for ambulatory cardiac monitoring. The clinician issues a patient-activated, external mobile electrocardiogram (ECG) device for episodic rhythm capture over several days. When the patient records an event using the device, the captured ECG data are transmitted to an augmentative algorithm that automatically analyzes heart rhythm and derives the corrected QT interval (QTc). The clinical workflow typically includes: ordering the mobile ECG device, educating the patient on when and how to record symptomatic episodes, remote transmission of recordings, automated algorithmic derivation of the QTc with flagging of abnormal intervals, clinician review of flagged tracings, and documentation of the QTc result and any subsequent management decisions in the medical record. Typical site of service is outpatient clinic, remote monitoring/telehealth environment, or ambulatory device program; service type is algorithmic analysis of patient-activated mobile ECG to derive QTc.

Coding Specifications

Modifier	Description	When to Use
`22`

Taxonomy Code	Specialty	Notes
207RH0000X	Cardiology	Cardiology providers commonly review algorithm-derived `QTc` and manage medication implications.
207RH0004X	Electrophysiology	Electrophysiologists interpret rhythm data and advise on arrhythmia management.
207Q00000X	Internal Medicine	Primary care and internal medicine providers often order and act on `QTc` results.
367A00000X	Emergency Medicine	Emergency providers may use handheld ECG and algorithm results for triage of symptomatic patients.
208D00000X	Family Medicine	Family physicians manage outpatient monitoring and medication adjustments based on `QTc`.

Related Diagnoses

ICD-10 Code	Description	Clinical Relevance
`I45.6`	Pre-excitation syndrome	Mobile ECG with `QTc` derivation may be used to evaluate conduction abnormalities and risk assessment.
`I49.9`	Cardiac arrhythmia, unspecified	Used when patients have symptomatic palpitations or suspected arrhythmia prompting mobile ECG monitoring and `QTc` assessment.
`I10`	Essential (primary) hypertension	Common comorbidity; hypertensive patients frequently take medications that can affect `QTc`.
`T42.7X5A`	Adverse effect of other antipsychotics and neuroleptics, initial encounter	Medications can prolong `QTc`; monitoring with mobile ECG-derived `QTc` is clinically relevant.
`R00.2`	Palpitations	Typical presenting symptom leading to patient-activated ECG recording and algorithmic `QTc` derivation.

Related CPT Codes

CPT Code	Description	Relationship to This Procedure
`0902T`	Analysis of heart rhythm data from a patient-activated mobile ECG device using an augmentative algorithm to derive the `QTc` interval	This is the primary code described; represents the algorithmic derivation of `QTc` from patient-activated mobile ECG recordings.
`93010`	Electrocardiogram, routine ECG with at least 12 leads; interpretation and report	Performed when a standard in‑office 12-lead ECG is obtained for baseline or comparative assessment to ambulatory recordings.
`93229`	External electrocardiographic recording, concurrent recording, review and interpretation, 48 hours; with recording and storage of data for >48 hours (example ambulatory ECG)	Ambulatory ECG monitoring services may be performed instead of or in addition to patient-activated mobile ECG device monitoring.
`99457`	Remote physiologic monitoring treatment management services, clinical staff/physician/other qualified healthcare professional time in a calendar month requiring interactive communication with the patient/caregiver	Used for chronic remote monitoring programs that include interactive management based on device-derived metrics such as `QTc`.
`99091`	Collection and interpretation of physiologic data (e.g., ECG), requiring a minimum of 30 minutes of physician or other qualified health professional time, per 30 days	Used when extensive time is spent collecting/interpreting physiologic data from remote devices and reported separately when criteria are met.

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Summary & Overview