FreeStyle Libre portfolio billing codes


  • 57599-0002-00: FreeStyle Libre 14 day reader
  • 57599-0001-01: FreeStyle Libre 14 day sensor
  • 57599-0803-00: FreeStyle Libre 2 reader
  • 57599-0800-00: FreeStyle Libre 2 sensor
  • 57599-0818-00: FreeStyle Libre 3 sensor

  HCPCS Codes2,3

    For theraputic CGM, the following codes are applicable:

  • A4239: Supply allowance for non-adjunctive, non-implanted continuous glucose monitor (CGM), includes all supplies and accessories, 1 month supply = 1 unit of service
  • E2103: Non-adjunctive, non-implanted continuous monitor or receiver 
  • Class II DME (including FreeStyle Libre 2 system and FreeStyle Libre 3 system) does not utilize a modifier
  • KF modifier applies to Class III DME (including FreeStyle Libre 14 day system)

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Medicare coverage is available for the FreeStyle Libre systems if their respective readers are used to review glucose data on some days every month. Medicare and other third party payor criteria apply.

Abbott provides this information as a courtesy; it is subject to change and interpretation. The customer is ultimately responsible for determining the appropriate codes, coverage, and payment policies for individual patients. Abbott does not guarantee third party coverage or payment for our products or reimburse customers for claims that are denied by third party payors.

References: 1. First DataBank, August 2023. 2. Centers for Medicare & Medicaid Services. "Glucose Monitors Local Coverage Determination Information (L33822)." Revision effective August 2023. Accessed March 2023. 3. Centers for Medicare & Medicaid Services. "Glucose Monitors Policy Article Information (A52464)." Revision effective April 16, 2023. Accessed August 2023.

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Important Safety Information

FreeStyle Libre 14 day, FreeStyle Libre 2 and FreeStyle Libre 3 systems: Failure to use FreeStyle Libre systems as instructed in labeling may result in missing a severe low or high glucose event and/or making a treatment decision, resulting in injury. If glucose reading and alarms (if enabled) do not match symptoms or expectations, use a fingerstick value from a blood glucose meter for treatment decisions. Seek medical attention when appropriate or contact Abbott at 855-632-8658 or for safety info.

The sensor housing, FreeStyle, Libre, and related brand marks are marks of Abbott. Other trademarks are the property of their respective owners.

No use of any Abbott trademark, trade name, or trade dress in this site may be made without prior written authorization of Abbott Laboratories, except to identify the product or services of the company.

This website and the information contained herein is intended for use by residents of the United States.

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