Ultra short format

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Ultra short format (UKF) is a standard developed by HL7 Germany for the communication and storage of health data. The UKF is a standard based on FHIR whose form of representation can be represented in XML and JSON . It is mainly used when memory or bandwidth is severely limited.

construction

The ultra-short format (UKF) is based on FHIR and the profiles defined there, such as patient , allergy intolerance and medication statement . The usual aspects and freedoms in the resources were initially restricted and specified in advance in the short-format FHIR profiles that the actual instances ("the data") can be kept extremely short.

The ultra-short format then reduces, starting from the FHIR profile definitions, to very short XML elements and attributes that have a one-to-one relationship to the underlying FHIR profile. This allows FHIR instances that are created according to the short format FHIR profiles and the ultra short format instances to be easily converted into one another ( bijectivity ).

As an example, it should be mentioned here that when transmitting codes you always have to specify from which code system the code was taken. Otherwise the code could not be interpreted correctly. If it is specified in advance (in the short-format FHIR profile) that only codes from very specific code systems may be used at certain points, the code system does not need to be included in the instance itself (so-called "short terminology link").

Example for transferring a body weight in kg: 

<Observation>
    <meta>
        <profile value="http://fhir.hl7.de/.../observation"/>
    </meta>
    <status value="final"/>
    <code>
        <coding>
            <system value="http://loinc.org"/>
            <code value="3142-7"/>
            <display value="Body weight"/>
        </coding>
    </code>
    <valueQuantity>
        <value value="89"/>
        <unit value="kg"/>
        <system value="http://unitsofmeasure.org"/>
        <code value="kg"/>
    </valueQuantity>
</Observation>

<O w="89" .../>

@w = weight [kg], print "weight: x kg"

Transformability

In principle, the UKF can be transformed into the ultra-short format (both based on XML or JSON) from both FHIR and CDA instances (and vice versa). Both are in turn suitable for data carriers with low capacity such as barcodes, but also eGK or in the area of ​​mobile apps (bandwidth problems).

Implementations

The UKF is currently used as a component of the medication regimen. Both the CDA format and the short format or ultra short format are to be further tested in real operation in the NRW project “Medication Plan 2.0plus”, which is funded by the ERDF.

Also for other communication scenarios such as B. AMTS, the UKF provides a basis.

Individual evidence

  1. ↑ IG: Ultra-short format patient-related medication plan - Hl7wiki. In: wiki.hl7.de. Retrieved September 2, 2016 .
  2. ↑ Super User: Start. In: medikationsplan-plus.de. Retrieved September 2, 2016 .