Billing and Coding: Ambulatory Electrocardiograph (AECG) Monitoring

AECG monitoring is covered when the medical record documents a diagnosis or clinical suspicion of a cardiac event and supports the medical necessity and chosen monitor type/duration (e.g., symptoms such as syncope, dizziness, chest discomfort, palpitations, abnormal tests, or cardiac history). Coverage should follow the LCD L39492 and relevant NCD guidance (e.g., NCD 20.15 for post-infarct), adhere to specified CPT code–to-duration mappings, and meet detailed documentation requirements (legible record, identifiers, signature, interpretation). CPT 93228/93229 are limited to one claim per patient per 30 days and non-covered services must not be billed as covered.

"Cardiac monitoring is covered when the medical record documents a diagnosis or clinical suspicion of a cardiac event that led to monitoring (e."

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