Code Overview
| Code | Purpose | Time/Device Concept | Relationship to Other Codes | Status |
|---|---|---|---|---|
| 99453 | Device setup and patient education | One-time, per episode of care | Billed once, before ongoing monitoring begins | Current |
| 99454 | Device supply with data collection/transmission | Recurring, each 30 days | Billed alongside setup and/or treatment management | Current |
| 99457 | Treatment management, clinical staff/physician/QHP time | First 20 minutes/month, requires 1+ interactive communication | Base treatment-management code | Current |
| 99458 | Additional treatment management time | Each additional 20 minutes/month | Add-on to 99457 only | Current |
Current-Year Status
Current: These four codes and their general structure reflect CMS's current (CY2026) guidance per the CMS Telehealth & Remote Monitoring MLN Booklet (MLN901705, December 2025).
Proposed Future Changes
Proposed: CMS's CY2027 Proposed Rule (July 14, 2026) is seeking comment — but has not proposed — on consolidating the current 17 RPM/RTM CPT codes (including the four above) into 4 new HCPCS codes. This is not a finalized change.
How These Codes Relate to Each Other
99453 and 99454 cover the device side of the program (setup, then ongoing supply and data collection); 99457 and 99458 cover the clinical review and management side. A typical enrolled patient generates 99454 monthly for as long as they're actively monitored, plus 99457 (and sometimes 99458) in months where qualifying treatment-management time and an interactive communication actually occur.
Documentation Considerations
Document the total qualifying time for treatment-management codes, the interactive communication that occurred, and — for the device-supply code — evidence that data was collected and transmitted electronically to a secure location for the billing practitioner's review.