CPT 99457E&M

Rem physiol mntr 1st 20 min

CPT 99457 covers the first 20 minutes a healthcare provider spends reviewing and managing data from devices that remotely monitor a patient's vital signs like blood pressure, weight, or oxygen levels. This is the interactive time spent discussing findings with the patient, not the technical monitoring itself.

Showing rates for

National Average

Base Medicare rate

$47.87

This calculator gives a typical-case estimate using standard Medicare modifier rules. Actual payment depends on payer policies, documentation, code-specific CMS status indicators, and locality. Verify before billing.

RVU breakdown

Work RVU

0.61

PE RVU (NF)

0.83

MP RVU

0.04

Total RVU

1.48

Conversion factor: 32.3465 · Source: CMS MPFS RVU25A · Confidence: High

NCCI bundling edits

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Billing tips

Document exact start and stop times for interactive communication to substantiate the 20-minute minimum requirement
Impact: Prevents denials worth $47.87 per claim; auditors frequently deny claims lacking specific time documentation
Bill 99457 only once per calendar month per patient, regardless of how many interactive sessions occur; use 99458 for each additional 20 minutes
Impact: 99458 pays $40.40 per unit; practices commonly miss $80-120 monthly per complex RPM patient by not billing additional increments
Ensure 16 days of device-transmitted data in the calendar month before billing 99457, as this is a prerequisite alongside 99454
Impact: Missing this requirement triggers automatic denial of $47.87 plus any 99458 units; coordinate billing with technical staff tracking transmission logs
Bill 99457 separately from CCM codes (99490/99491) in the same month when documentation supports distinct time and services for each program
Impact: Combined billing can generate $47.87 (RPM) + $42.48 (CCM base) = $90.35 monthly per patient for comprehensive chronic care
Verify the patient has not been billed for RPM services by another provider in the same month, as only one practice can bill per calendar month
Impact: Duplicate billing triggers recoupment of $47.87 plus potential fraud investigation; implement patient attestation forms
Document the specific physiologic parameters monitored and clinical decisions made based on the data to differentiate from general check-in calls
Impact: Vague documentation increases audit vulnerability; specific clinical correlation reduces denial rate from 15-20% to under 5%

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Frequently asked questions

What is CPT code 99457 used for?

CPT 99457 is used to bill for the first 20 minutes of remote physiologic monitoring treatment management services in a calendar month. This includes time spent by clinical staff or a qualified healthcare professional reviewing device-transmitted patient data and engaging in interactive communication with the patient to discuss findings, adjust treatment plans, and provide education.

How much does Medicare pay for CPT 99457 in 2025?

Medicare pays $47.87 for CPT 99457 under the 2025 non-facility rate (national average). The facility rate is $28.79. The code has 1.48 total RVUs (0.61 work RVU, 0.83 non-facility PE RVU, 0.04 malpractice RVU) based on the 2025 Medicare Physician Fee Schedule with a conversion factor of 32.3465.

Can you bill 99457 and 99458 together?

Yes, you can bill 99457 and 99458 together in the same calendar month. CPT 99457 covers the first 20 minutes of treatment management, while 99458 is an add-on code for each additional 20 minutes. For example, 40 minutes of interactive time would be billed as 99457 + 99458 x1, totaling $88.27 in Medicare reimbursement.

What is the difference between 99457 and 99490?

CPT 99457 is for remote physiologic monitoring treatment management based on device-transmitted data (blood pressure, weight, oxygen levels), while 99490 is for chronic care management involving comprehensive care coordination. Key differences: 99457 requires device-based monitoring and 16 days of data transmission; 99490 requires management of two or more chronic conditions and a comprehensive care plan. Both can be billed in the same month if documentation supports distinct services.

How many times can you bill 99457 per month?

CPT 99457 can only be billed once per patient per calendar month, as it represents the first 20 minutes of treatment management. If you provide additional time beyond the initial 20 minutes in the same month, you should bill 99458 for each additional 20-minute increment. Only one provider/practice can bill RPM services for a given patient in a calendar month.

What documentation is required for CPT 99457?

Documentation for 99457 must include: exact start and stop times showing at least 20 minutes of interactive communication, confirmation of 16+ days of device data transmission in the month, specific physiologic parameters reviewed, clinical assessment and treatment decisions made, patient education provided, method of communication (phone/video), and evidence of physician/QHP supervision. Time logs and device transmission reports are critical for audit defense.

Can 99457 be billed with telehealth codes?

CPT 99457 itself is inherently a remote service and does not require a telehealth modifier for Medicare. However, the interactive communication component can be conducted via phone, video, or other real-time communication methods. It should not be billed on the same date of service as a separate E/M visit (99202-99215) for the same condition without appropriate documentation showing distinct services, though it can be billed in the same calendar month.