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Philips HealthSuiteFHIR API

Tom WilsonPhilips Healthcare@twilson650

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RESTful Health APIs

Most are specific to a device/company (fitbit, misfit, withings, etc)

…although…

There are some general purpose APIs, like the Human APIhttps://www.humanapi.co/

These RESTful APIs have some common design features/flaws:• URL based on data type:– /user-id/sleep– /user-id/activity– /user-id/weight

• Different data structures for each data type• Additional data types require API change!• Do not integrate easily with medical records (require translation)

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How do we bridge the gap?

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Enter FHIRhttp://www.hl7.org/fhir/• A new standard– Made possible by new technologies and standards– Informed by lessons of the past

• Not a new standard– We don’t need yet another health data standard– HL7, the health data standard since 1987

• REST API• “Internet of Things” for your health data• your health data is now addressable

• Compatible with wide range of data– Hospitals– Home Monitoring Equipment– Fitness Trackers– Environmental sensors

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What is FHIR? A Brief History

• Fast Healthcare Interoperability Resources (FHIR)RESTful API for health data

• HL7 standard with long history– HL7v2: internal hospital data – HL7v3: Health Information Exchange (HIE) – CDA/CCD: Clinical Document Architecture / Continuity of Care Document– FHIR: Simplified REST implementation of CDA

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FHIR Basics• Everything is a resource– Organization– Patient– Observation

Every resource is addressable with a URLhttps://yourserver.com/Organization/123https://yourserver.com/Patient/456https://yourserver.com/Observation/789

Resources are connected with URL references

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Observation Resource“subject” is relative URL of the patient

“valueQuantity” contains the value and units

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Observation Value• “valueQuantity”– Value

– Units SI - Système International d’Unités, or International System of Units UCUM – Unified Code for Units of Measure

“appliesDateTime” Point in Time

Observation Timing

“appliesPeriod”Time Interval

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Coding the Observation TypeLOINC – hospital / medical data

IEEE-11073 – fitness, diet, environmental

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Coding the Observation Type

/Observation?subject=Patient%2Fa103&name=https%3A%2F%2Frtmms.nist.gov%7C150016

Insert code system + code into your query

You can search for codes

Or check the cookbook!

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Observation

Observation type

Value and units

Date and time

The patient

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Fitness Data

• Nothing special about fitness data in FHIR• Observation with a code, same as everything else• IEEE-11073 covers fitness data–Steps per day–Sleep quality–And much more!

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Fitness Data: Steps per Day

4,718 stepsMarch 5, 2015

https://rtms.nist.govMDC_HF_DISTANCE8454247

Fitness tracker data Coding Observation Resource

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Fitness Data – Fitbit Observation

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Environmental Data• Air quality data from smart air purifiers.

Air quality: bad

Alert! Everyon

e Inside!

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Environmental Observation

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Useful Links

• FHIR Spec DSTU 2https://www.hl7.org/fhir/2015May/index.html

• HAPI FHIR Java Libraryhttps://github.com/jamesagnew/hapi-fhir

• HAPI Test Serverhttp://fhirtest.uhn.ca/

• IEEE Personal Health Device working grouphttp://standards.ieee.org/develop/wg/PHD.html

• Philips HealthSuitehttp://www.usa.philips.com/healthcare-innovation/about-health-suite

• Health Hackathon (Netherlands) Aug 28http://reshape.hackinghealth.io/

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Questions?

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