This ValueSet is part of the Health Device Data Transfer specification (HDDT) which defines profiles, operations, and value sets for sharing data between medical aids and digital health applications (DiGA). Core of the HDDT specification are Mandatory Interoperable Values (MIVs). MIVs are classes of measurements that contribute to defined use cases and purposes of DiGA.

This ValueSet defines the Mandatory Interoperable Value (MIV) "Continuous Glucose Measurement". The definition is made up from

• this description which provides the semantics and defining characteristics of the MIV
• a set of LOINC codes that define MIV-compliant measurement classifications along the LOINC axes component, system, scale and method

The MIV Continuous Glucose Measurement covers values from continuous monitoring of the glucose level, e.g. by rtCGM in interstitial fluid (ISF). Measurements are performed through sensors with a sample rate of up to one value per minute (or even more). By this, the MIV Continuous Glucose Measurement can e.g. be used to assess dependencies between a patient's individual habits and behavious and his glucose level. Due to the high density of values over a long period of time, many key metrics can be calculated from Continuous Glucose Measurement which help the patient and his doctor to easily capture the status of the patient's health and therapy.

The ValueSet for the MIV Continuous Glucose Measurement includes codes relevant to continuous glucose monitoring (CGM) in interstitial fluid (ISF), considering mass/volume and moles/volume as commonly used units. In the future codes defining non-invasive glucose measuring methods may be added to this value set.