FreeStyle Libre 3.

The World's Most-Used CGM Sensor

FreeStyle Libre 3 is Abbott's latest continuous glucose monitoring sensor and the most-used CGM platform globally with over 5 million users across 60+ countries. For RPM programs, it delivers a combination that no other CGM matches: readings every minute, 14-day sensor wear, and iCGM-level accuracy with a MARD of 7.9%.

Where traditional blood glucose meters provide 2-4 data points per day, FreeStyle Libre 3 generates 1,440 — revealing the complete glucose picture that spot-checks miss.

How FreeStyle Libre 3 Works with CCN Health

Data flows from the sensor to CCN Health's clinical platform through Abbott's LibreView cloud:

1. Sensor measurement — The subcutaneous filament measures interstitial glucose every minute automatically
2. Bluetooth relay — Readings transmit via Bluetooth Low Energy to the FreeStyle Libre app on the patient's smartphone
3. LibreView cloud sync — The app syncs data to Abbott's LibreView cloud platform in real time
4. CCN Health integration — CCN Health pulls glucose data from LibreView's cloud API, processes time-in-range metrics, generates clinical alerts, and posts summaries to the patient's EHR

This end-to-end automation means clinical staff see glucose trends, alerts, and AGP reports without requiring any manual data entry from the patient or provider.

Clinical Decision Support

FreeStyle Libre 3's minute-by-minute data unlocks clinical insights that 5-minute CGMs cannot provide at the same resolution:

• Time-in-range analytics — Percentage of time glucose stays within target range (70-180 mg/dL), the gold-standard metric endorsed by the international diabetes technology community
• Pattern recognition — Dawn phenomenon, post-meal spikes, overnight hypoglycemia, and exercise response patterns visible with higher granularity
• Predictive alerting — Configurable thresholds for urgent low, low, and high glucose events. CCN Health escalates critical events to care teams automatically
• AGP reports — Standardized 14-day ambulatory glucose profile reports for clinical review and documentation

FreeStyle Libre 3 vs FreeStyle Libre 2

Feature	Libre 3	Libre 2
Reading frequency	Every 1 minute	Every 1 minute
Real-time alerts	Yes (always on)	Yes (Libre 2 Plus)
Scanning required	No	Optional (scan or real-time)
Sensor wear	14 days	14 days
MARD accuracy	7.9%	9.2%
Sensor size	Smallest iCGM sensor	Standard size
FDA classification	iCGM	iCGM
Warm-up	60 minutes	60 minutes

CMS Compliance for RPM Billing

FreeStyle Libre's continuous data transmission supports CPT 99454 compliance by automatically documenting device transmission days. Each day with at least one glucose reading counts toward the 16-day minimum required for monthly RPM billing. With readings every minute, the Libre 3 consistently generates qualifying data on every day the sensor is active — reducing the most common cause of RPM billing failures.

Ordering and Logistics

FreeStyle Libre 3 is available through standard medical supply distributors and direct from Abbott. CCN Health's platform tracks sensor inventory, monitors sensor expiration timelines, and automates patient outreach for sensor replacement to maintain continuous monitoring coverage.