When scoring documentation for E/M services, can a review or order of a pulse oximetry reading be counted as a vital sign under constitutional?

No. Pulse oximetry is not considered a vital sign. However, pulse oximetry is listed as a CPT 9xxxx series. If a physician reviews and/or orders a pulse oximetry, credit will be applied to the complexity of data portion of medical decision-making.

Resource: CMS MLN Evaluation and Management Services Guide (PDF, 1.5 MB)

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