CPT 99445 Description, Billing Rules, & Use Cases

CPT 99445 is used to report the monthly supply, transmission, and monitoring of Remote Physiological Monitoring (RPM) devices when patient-generated data is collected and transmitted on 2 to 15 days within a 30-day period. This code supports RPM programs that rely on patient data collected outside the clinic—such as blood pressure, glucose, weight, or pulse oximetry—and allows providers to receive reimbursement for connected care infrastructure when the standard 16-day data threshold is not met.

CPT 99445 is billed instead of CPT 99454 for the same billing period and may not be reported concurrently with CPT 99454. It is intended for shorter-duration RPM participation while maintaining continuity of device supply and data transmission.

What is CPT Code 99445?

CPT 99445 covers the ongoing supply and management of a physiologic monitoring device used in a Remote Physiologic Monitoring (RPM) program when patient-generated data is captured and transmitted on 2 to 15 days within a 30-day period. It is billed once per 30-day period, as long as:

A qualified RPM device is supplied to the patient
The device is capable of automatic data transmission
The system captures and transmits patient data on 2–15 days during the billing month

CPT 99445 does not include device setup or patient education (reported under CPT 99453), nor does it include RPM treatment management time (reported under CPT 99457, 99458, or 99470). Instead, CPT 99445 represents the passive data infrastructure that supports RPM—such as device connectivity, data transmission, portal access, and monitoring alerts—when the standard 16-day threshold required for CPT 99454 is not met.

This code is reported in place of CPT 99454 for the same billing period and may not be billed concurrently with CPT 99454.

It applies to both chronic and acute physiologic monitoring use cases, including:

Hypertension
Heart failure
Diabetes
Obesity
COPD and post-discharge recovery

CPT 99445 Time Thresholds and Code Combinations

CPT 99445 may be billed once per calendar month to report the supply and transmission of a physiologic monitoring device when the minimum data threshold required for CPT 99454 is not met. Providers must confirm both technical compliance and patient engagement before submitting the claim.

Important to Note:

CPT 99445 requires:

An FDA-defined RPM device assigned to the patient
Device use that results in 2–15 days of data transmission within the billing month
A single billing instance per 30-day period, per patient
Supervised RPM infrastructure with accessible data review capabilities

Table outlining CPT 99445 time thresholds and billing combinations for Remote Physiologic Monitoring, including data transmission day requirements, allowable code pairings, provider eligibility, and scenarios where CPT 99445 or CPT 99454 may or may not be billed.

When to Use CPT 99445: Common Scenarios and Use Cases

CPT 99445 is used to report the monthly device supply and data transmission component of a Remote Physiologic Monitoring (RPM) program when the patient’s device data is transmitted on 2 to 15 days during a 30-day period. It is billed once per 30-day cycle when the device is supplied and transmission occurs as expected, but the 16-day minimum required for CPT 99454 is not reached.

Here are examples of how CPT 99445 is used in practice:

Short-Duration RPM Monitoring for Hypertension

Post-Discharge Monitoring Using RPM Scale

Short-Term Weight Monitoring for Bariatric Surgery Recovery

Short-Duration RPM Monitoring for Hypertension

A primary care provider:

Assigns a cellular blood pressure cuff to a patient with uncontrolled hypertension
Data is automatically transmitted and stored in a monitoring platform
The patient uses the device intermittently over the month, resulting in 10 transmission days

Billing: CPT 99445 (one unit for monthly supply and data transmission when 2–15 days are recorded)

Patient using digital blood pressure monitor at home as part of chronic care management (CCM) services under CPT 99490, tracking systolic, diastolic, and pulse data for care coordination.

Post-Discharge Monitoring Using RPM Scale

A care team:

Sends a connected scale home with a patient after a CHF-related hospital discharge
Weight readings transmit automatically to the RPM platform
The patient records weights on 7 days before transitioning back to routine follow-up

Billing: CPT 99445 (one unit for device supply and transmission when usage is short-duration)

Blood pressure monitor, prescription medications, ECG chart, and cardiac electrodes illustrating chronic condition monitoring and hypertension management tools

Short-Term Weight Monitoring for Bariatric Surgery Recovery

A surgical practice:

Supplies a connected scale to monitor weight trends during early recovery
Data transmits as expected, but the monitoring period is intentionally limited
The patient submits readings on 12 days within the 30-day cycle

Billing: CPT 99445 (one unit for monthly supply and data transmission when 2–15 days are recorded)

Close-up of person standing on digital scale, illustrating weight tracking for Remote Patient Monitoring (RPM) and Remote Therapeutic Monitoring (RTM) in chronic condition and obesity management

CPT 99445: Billing Requirements and Eligibility

CPT 99445 is used to report the monthly supply and transmission of a Remote Physiologic Monitoring (RPM) device when patient-generated physiologic data is captured and transmitted on 2 to 15 days within a 30-day period. This code is data-threshold dependent, requires documented device supply and transmission capability, and should be tied to a physician-ordered monitoring plan.

It does not include setup or patient onboarding (CPT 99453) or provider-led RPM treatment management (CPT 99457/99458/99470). Instead, it captures the passive, ongoing service layer that allows physiologic data to flow from the patient to the care team when the standard 16-day transmission threshold for CPT 99454 is not met.

Important: CPT 99445 is billed instead of CPT 99454 for the same billing period and may not be reported concurrently with CPT 99454.

Patient Eligibility Criteria

To be eligible for RPM under CPT 99445, the patient must:

Have a condition that warrants daily or near-daily physiologic monitoring
Reside in a home or community-based setting (not a facility or hospital)
Be enrolled in an active RPM program with physician oversight

Be using a qualified, FDA-defined medical device capable of data transmission

RPM is commonly used for:

Cardiovascular disease (e.g., hypertension, CHF)
Diabetes management
Respiratory illnesses (e.g., COPD, post-viral recovery)
Weight and nutrition monitoring
Post-surgical recovery or medication titration

Device and Setup Requirements

To qualify for 99445:

The device must be FDA-defined as a medical device

It must be capable of:

Measuring physiologic data (e.g., BP, glucose, weight, oximetry)
Automatically recording and transmitting data (manual entry is not allowed)
The device must be supplied by the provider
The patient must transmit data on 2–15 days within a 30-day period
Data must be accessible and reviewable by the clinical team if alerts occur

Each billing cycle represents one 30-day period, and multiple devices used concurrently for the same patient are not billed separately under 99445

Who Can Bill CPT 99445

CPT 99445 may be billed by:

Physicians
Nurse Practitioners (NPs)
Physician Assistants (PAs)
Other Qualified Healthcare Professionals (QHPs)

Device distribution and monitoring may be performed by clinical staff, but billing is tied to a supervising provider under general supervision.

Billing Frequency and Data Requirements

CPT 99445 is billed once per 30-day period, per patient
It requires 2–15 days of data transmission during that period
Billing is only valid if the patient actively uses the device and transmission occurs

Reimbursement generally covers:

Cellular or Bluetooth transmission
Portal/platform access
Data monitoring infrastructure
The device lease or supply

CPT 99445 Billing Documentation Checklist

To support compliant billing of CPT 99445, include the following in the patient record:

A documented provider order for RPM services:
Includes clinical rationale for physiologic monitoring
Specifies the type of data to be monitored (e.g., BP, weight, glucose)

Description of the RPM device:

Meets the FDA definition of a medical device
Capable of automated data transmission (not manual logging)
Assigned to the patient for use in their home or community setting

Device supply and activation record:

Date the device was provided to the patient
Documentation that the patient was onboarded and device functionality confirmed
Evidence that the system was connected to a clinical monitoring platform

Transmission tracking for the billing cycle:

Confirmation that the patient transmitted data on 2–15 days in a 30-day period
Timeframe should match the billing period exactly
Optional: platform-generated logs or device usage summaries

Patient participation verification:

Confirmation that the patient engaged with the device (passively or actively)
No extended gaps in measurement beyond allowable parameters

Supervising provider identification:

The claim must be billed under a physician or QHP
Clinical staff involvement must occur under general supervision

Attestation that:

CPT 99445 was not duplicated by another provider for the same patient during the billing period
Only one billing instance is submitted per 30-day cycle
CPT 99445 was billed instead of CPT 99454 for the same cycle
Devices used concurrently for the same physiologic function are not billed separately

Common CPT 99445 Billing Mistakes (and How to Avoid Them)

❌ Fewer Than 2 Days of Data Transmission

The most common mistake is billing CPT 99445 when the patient transmits data on fewer than 2 days in the billing period. Even if the device was supplied and setup occurred, CPT 99445 may not be reported unless the minimum data threshold is met.

❌ Billing CPT 99445 and CPT 99454 in the Same Month

CPT 99445 and CPT 99454 are mutually exclusive. Billing both codes for the same patient within the same 30-day period will result in denial. CPT 99445 should only be used when the 16-day requirement for CPT 99454 is not met.

❌ Manually Entered Data from Non-Qualified Devices

CPT 99445 requires automated data transmission from an FDA-defined medical device. Readings manually entered by the patient or caregiver do not qualify and should not be counted toward the data-day threshold.

❌ Duplicate Billing Within the Same 30-Day Period

Only one unit of CPT 99445 may be billed per patient per 30-day cycle. Submitting multiple claims for different devices or attempting to split billing across providers is not permitted.

❌ Device Not Supplied by the Billing Provider

The RPM device must be furnished by the billing provider or their care team. Claims may be denied if device ownership, assignment, or supply cannot be clearly documented.

❌ Using CPT 99445 When 16+ Days of Data Were Recorded

If the patient transmits data on 16 or more days in the billing period, CPT 99454 — not CPT 99445 — should be billed. Using CPT 99445 in this scenario may be considered incorrect coding.