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    This downloadable PDF offers a quick reference for new rules for outpatient E/M code medical decision making (MDM), prolonged services and time-based coding elements.

    Download the quick reference (PDF)

    Additionally, this Crosswalk Guide compares E/M MDM, prolonged services and time-based coding elements from previous years to the 2021 guidance.

    Download the crosswalk guide (PDF)

    This resource is part of the 2021 E/M Coding, Billing and Auditing Toolkit.

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