Updated for 2026. Medicare Remote Physiologic Monitoring (RPM) now includes a shorter treatment-management pathway through CPT 99470. This gives practices another code to evaluate when qualifying RPM management time reaches 10 minutes during a calendar month but does not reach the longer threshold associated with CPT 99457.
Understanding the difference between CPT 99470 and CPT 99457 is important for accurate time tracking, documentation, and RPM billing workflows.
CPT 99470 vs CPT 99457 at a Glance
CodeManagement TimeGeneral Purpose99470First 10 minutesRPM treatment management for a shorter qualifying monthly management period99457First 20 minutesRPM treatment management when the longer monthly time threshold is met
Noridian's 2026 Medicare guidance identifies CPT 99470 as a new RPM treatment-management code for the first 10 minutes of provider or clinical staff time in a calendar month. CPT 99457 continues to represent the longer 20-minute treatment-management threshold.
What Is CPT 99470?
CPT 99470 was introduced for 2026 to address RPM treatment-management services when qualifying monthly management time is less than 20 minutes.
The code is particularly relevant when a care team performs meaningful RPM management activities but total qualifying time reaches 10 minutes rather than the threshold associated with CPT 99457.
What Is CPT 99457?
CPT 99457 is an established RPM treatment-management code associated with the first 20 minutes of qualifying management services during a calendar month.
These services generally involve reviewing remotely transmitted physiologic information and using that data as part of patient treatment or management.
The Main Difference Is Monthly Management Time
The clearest difference between CPT 99470 and CPT 99457 is the qualifying treatment-management time accumulated during the calendar month.
10 Minutes of Qualifying Management Time
If the practice documents at least 10 minutes of qualifying RPM treatment-management activity but does not reach 20 minutes, CPT 99470 may be the relevant code when all other requirements are satisfied.
20 Minutes of Qualifying Management Time
If the practice reaches the applicable 20-minute treatment-management threshold and satisfies the other requirements, CPT 99457 may be appropriate instead.
Example: 12 Minutes of RPM Management
A patient with hypertension uses a connected blood-pressure monitor. During the month, the care team reviews transmitted readings, identifies several elevated measurements, evaluates the patient's trends, communicates with the patient, and documents the clinical follow-up.
The qualifying treatment-management activities total 12 minutes during the calendar month.
If all applicable Medicare and coding requirements are met, CPT 99470 may be relevant because the documented qualifying management time reached 10 minutes but did not reach 20 minutes.
Example: 24 Minutes of RPM Management
Another patient generates readings that require additional review and follow-up. The care team documents 24 minutes of qualifying RPM treatment-management activity during the calendar month.
Because the documented management time reaches the longer threshold, the practice would evaluate CPT 99457 rather than treating CPT 99470 as an automatic additional code.
Should CPT 99470 and 99457 Be Added Together?
Practices should not automatically stack CPT 99470 and CPT 99457 simply because more than 20 minutes of activity occurred. These codes represent different base treatment-management time thresholds.
The correct code selection should reflect the services actually furnished, documented time, current CPT instructions, CMS policy, Medicare Administrative Contractor guidance, and payer-specific requirements.
Where Does CPT 99458 Fit?
CPT 99458 is an add-on treatment-management code associated with additional qualifying time after the applicable base requirements are met.
Practices should confirm the current CPT and payer rules governing when an add-on code may be reported rather than assuming every additional block of activity is separately billable.
What Activities May Be Part of RPM Treatment Management?
RPM treatment management focuses on the clinical use of remotely collected physiologic data. Depending on the circumstances and applicable rules, a workflow may involve activities such as:
- Reviewing transmitted blood-pressure trends
- Reviewing weight or pulse-oximetry trends
- Assessing abnormal or changing readings
- Discussing clinically relevant findings with the patient
- Evaluating whether a treatment-plan change or follow-up is needed
- Coordinating appropriate clinical follow-up
- Documenting treatment-management services
Not every administrative task should automatically be treated as billable treatment-management time. Practices should document qualifying services carefully and follow applicable coding guidance.
RPM Treatment Management vs Device Supply
CPT 99470 and CPT 99457 relate to treatment management. They are different from RPM device-supply codes that are based primarily on qualifying data-transmission days.
CodeRPM Component99445Device supply/data transmission for 2–15 qualifying monitoring days99454Device supply/data transmission for the longer monitoring threshold99470Treatment management, first 10 minutes99457Treatment management, first 20 minutes99458Additional treatment-management time when applicable requirements are met
This distinction is important because the number of transmitted monitoring days does not determine the amount of treatment-management time.
Important Medicare RPM Requirements
The new 10-minute treatment-management pathway does not replace Medicare's broader RPM requirements.
Established Patient Relationship
CMS states that Remote Physiologic Monitoring generally requires an established patient relationship.
Acute or Chronic Condition
CMS allows RPM for qualifying acute or chronic conditions when the service is medically reasonable and necessary.
Medical Necessity
The RPM service should be medically appropriate for the individual patient and should support management of the patient's condition.
Connected Medical Device
For Medicare RPM, physiologic information must be electronically collected and automatically uploaded to a secure location where it can be available for analysis and interpretation.
Patient Consent
CMS requires patient consent when RPM services are furnished. Practices should document consent according to current requirements.
One Billing Practitioner
CMS states that only one practitioner can bill remote monitoring for a patient during the applicable 30-day monitoring period.
Avoid Double Counting Time
Remote monitoring may be furnished alongside certain care-management services when their individual requirements are satisfied, but the same time and effort should not be counted twice.
Why CPT 99470 Matters for Practices
The addition of CPT 99470 can make RPM billing more closely reflect months in which meaningful treatment management occurs but the care team does not accumulate 20 minutes of qualifying management time.
This may be relevant for stable patients whose readings still require professional review and patient follow-up, but whose condition does not require extensive monthly intervention.
Practices should not modify clinically appropriate care merely to reach a billing threshold. Coding should follow the services actually furnished to the patient.
Building a Better RPM Time-Tracking Workflow
To support accurate RPM reporting, practices should maintain a workflow that clearly records:
- The patient receiving the service
- The condition being monitored
- The date of each qualifying activity
- The staff member or practitioner performing the activity
- The time associated with qualifying management services
- Relevant patient communication
- Clinical findings and resulting actions
- Total qualifying monthly management time
Accurate time tracking becomes particularly important when determining whether the documented services support the 10-minute or 20-minute treatment-management pathway.
How ChronicSync Can Help
ChronicSync is designed to help care teams organize Remote Patient Monitoring and chronic care workflows in one structured environment.
Clear patient activity, care-team workflows, and documentation can help practices better understand what happened during the month and support more consistent billing review.
Start your ChronicSync Free Pilot to explore a more organized way to manage RPM and chronic care programs.
Frequently Asked Questions
What is the difference between CPT 99470 and CPT 99457?
The primary difference is treatment-management time. CPT 99470 represents the new 2026 pathway beginning at 10 minutes, while CPT 99457 uses the longer 20-minute threshold.
Is CPT 99470 new for 2026?
Yes. Noridian identifies CPT 99470 as one of the new RPM codes introduced for 2026 to address treatment-management periods of less than 20 minutes.
Does CPT 99470 replace CPT 99457?
No. CPT 99470 adds a shorter treatment-management pathway. CPT 99457 remains relevant when its longer management-time requirements are met.
Does the device need 10 days of readings for CPT 99470?
No. CPT 99470 is based on qualifying treatment-management time rather than a 10-day device-data threshold. Device-supply codes have separate monitoring-day requirements.
Can RPM be billed with CCM?
CMS states that remote monitoring may be billed concurrently with certain care-management services, including Chronic Care Management, when each service's requirements are met and the same time and effort are not counted twice.
Sources
- Noridian Medicare: RPM 2026 Evaluation and Management Updates
- CMS Medicare Learning Network: Telehealth & Remote Monitoring
- CMS: Remote Patient Monitoring
This article is provided for educational purposes only and is not medical, legal, coding, reimbursement, or billing advice. CPT, Medicare, and commercial payer requirements can change. Verify current requirements with CMS, the current CPT code set, your Medicare Administrative Contractor, and applicable payers before submitting claims.