RPM FAQ
CPT 99453/99454/99457/99458 billing, the interactive communication rule, patient eligibility, documentation, and how AI-powered engagement fits the regulations.
Remote Patient Monitoring is a Medicare-reimbursed care program where clinical staff review physiologic data (blood pressure, glucose, weight, SpO2, etc.) transmitted from a patient’s connected device and conduct interactive communication with the patient at least monthly. CMS reimburses four codes: CPT 99453 (setup), 99454 (device supply), 99457 (first 20 minutes of interactive communication per calendar month), and 99458 (each additional 20 minutes).
CMS requires that clinical staff (or the physician) have at least one interactive communication with the patient or caregiver each calendar month in which CPT 99457 or 99458 is billed. The interaction can be telephonic, secure messaging, or video — and it must be real-time, two-way engagement that discusses the patient’s physiologic data, symptoms, or care plan. A one-way notification or unresponded message does not satisfy the requirement.
CMS has not established that a fully automated AI interaction independently satisfies the requirement. AI outreach can collect structured responses, document attempts, and surface patients for clinical-staff follow-up, but the billing practice must determine which interactions and staff activities meet current CPT, CMS, MAC, and payer requirements.
Combined, CPT 99457 (~$52 for first 20 minutes) and 99458 (~$41 for each additional 20 minutes) generate roughly $93 per patient per month in the typical case. Adding CPT 99454 for device supply ($47–$56/month) brings the total per-patient monthly revenue to approximately $140–$150 for a full RPM episode. CPT 99453 is a one-time ~$19 setup fee. Rates vary by locality and update annually.
Medicare covers RPM for patients with one or more chronic conditions whose physiologic data informs ongoing care decisions — hypertension, diabetes, heart failure, COPD, and post-surgical monitoring are the most common. The patient must have a connected device capable of transmitting data to the provider, and the provider must document a clinical rationale for monitoring.
Yes, when the vendor operates under a signed Business Associate Agreement (BAA) and the platform implements HIPAA technical safeguards — encryption in transit and at rest, role-based access, audit logging, and minimum-necessary data handling. Positive Check operates under a BAA for all provider engagements.
CPT 99457 covers the first 20 minutes of interactive communication per calendar month; CPT 99458 covers each additional 20 minutes in the same month. Both require the same content — real-time two-way patient engagement discussing physiologic data, symptoms, or the care plan. 99458 can be billed up to twice per patient per month (covering minutes 21–40 and 41–60), giving typical combined monthly revenue of roughly $93 per patient.
No. CPT 99457 requires a minimum of 20 minutes of interactive communication in a calendar month. If the time threshold is not met, the service is not billable. Providers should track cumulative interactive-communication time per patient per month and bill 99457 only when the 20-minute threshold is reached.
Applicable CPT and Medicare requirements identify physicians, non-physician practitioners, or clinical staff under the required supervision. The communication must meet the current real-time, two-way and content requirements. Automated outreach can support those staff workflows but should not be treated as a substitute for required qualified-personnel time without confirmation from the practice’s billing and compliance advisers.
The device must be a medical device as defined by the FDA, and it must automatically transmit physiologic data (not just allow manual entry). Common examples include connected blood pressure cuffs, glucose monitors, scales, pulse oximeters, and ECG devices. CPT 99454 reimburses device supply and data transmission, and the patient must record or have the device transmit data at least 16 of 30 days for 99454 billing each 30-day period.
Yes. CMS permits RPM to be billed concurrently with Chronic Care Management (CCM), Transitional Care Management (TCM), and Principal Care Management (PCM) for the same patient, as long as the services are distinct and documented separately. Many providers use TCM during the 30-day post-discharge window, then transition stable patients into ongoing RPM.
Documentation must include: patient consent to receive RPM (verbal or written, documented in the chart), the device type and data transmitted, cumulative interactive-communication time for the month, dates and content of the interactive communications, and any care plan changes or escalations. Positive Check generates a structured summary of each interactive communication that maps to these documentation elements.
Related glossary entries: CPT 99457, CPT 99458, Remote Patient Monitoring.
For the full Remote Patient Monitoring solution overview, return to the RPM pillar page.
Reviewed against current CMS billing guidance. Medicare Physician Fee Schedule. Last updated 2026-04-19.