93228 CPT Code: Holter Monitor Professional Billing

Last Updated: March 27, 2026

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External electrocardiographic recording (Holter monitoring) up to 48 hours is billed using the 93228/93229 series. Accurate component billing is essential to prevent payer takebacks.

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Professional vs Technical Components

  • 93228 (Professional): Review and interpretation of the Holter monitor data by a physician.
  • 93229 (Technical): Recording, connection, downloading, and software analysis of the device data.

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Time Requirements

These codes are strictly for monitoring lasting between 12 and 48 hours. If the monitoring lasts less than 12 hours, you cannot bill 93228/93229. If it lasts longer than 48 hours (e.g., 7 days or 14 days), you must use the extended continuous recording codes (93241-93248).

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NCCI Edits

Do not bill standard EKGs (93000) on the same day the Holter monitor is applied or removed unless there is a separate, emergent medical necessity.

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