As of March 2021, they are as follows:
CPT code 99453 (Setup):
Remote monitoring of physiologic parameter(s) (eg, weight, blood pressure, pulse oximetry, respiratory flow rate), initial; set-up and patient education on the use of equipment.
CPT code 99454 (Device & Monitor):
Remote monitoring of physiologic parameter(s) (eg, weight, blood pressure, pulse oximetry, respiratory flow rate), initial; device(s) supply with daily recording(s) or programmed alert(s) transmission, every 30 days.
CPT code 99457 (Patient Engagement):
Remote physiologic monitoring treatment management services, 20 minutes or more of clinical staff/physician / other qualified healthcare professional time in a calendar month requiring interactive communication with the patient/caregiver during the month.
CPT code 99458 (Additional 20 Minutes):
Remote physiologic monitoring treatment management services, clinical staff/physician/other qualified health care professional time in a calendar month requiring interactive communication with the patient/caregiver during the month; additional 20 minutes
* Amounts identified are approximate. Reimbursement varies among Medicare administrative contractors (MACs).
Note: CPT code 99091 was the original way to bill for remote patient monitoring. Over the past several years, its limitations and requirements had made it rarely reported due to the availability of the newer codes listed above. However, the 2021 Medicare physician fee schedule final rule might change the frequency that CPT 99091 is reported as CMS now permits billing the code with newer codes. In other words, providers can bill for “complex” RPM management when the provider must spend significant time managing the patient and their RPM care plan. CMS also stated that 99091 can be billed each 30 days whenever such complex provider management occurs without affecting the practice’s ability to bill clinical staff time via CPT 99457 each calendar month.