Billing and Coding: Ambulatory Electrocardiograph (AECG) Monitoring

Ambulatory ECG monitoring is covered when the medical record documents a diagnosis or clinical suspicion of a cardiac event and documents symptoms (e.g., syncope, dizziness, dyspnea, chest discomfort, palpitations), abnormal test results, or cardiac history that justify monitoring type and duration. Specific CPT codes map to device type and allowed durations (Holter ≤48 hours; extended monitors up to 7, 15, or 30 days; mobile telemetry and event monitors up to 30 days; implanted monitors continuous), and CPT 93228/93229 are payable only once per 30 days. All claims must be supported by complete, legible medical records including provider signature, documentation of medical necessity, accurate ICD-10 and CPT/HCPCS coding, and required transmission/interpretation details for attended monitoring.

"Ambulatory ECG monitoring is covered when the medical record documents a diagnosis or clinical suspicion of a cardiac event that justifies cardiac monitoring."