Understanding Resources in FHIR - Session 3 of FHIR basics training series
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1) The document discusses a presentation on understanding FHIR resources. It provides an agenda that covers recapping previous sessions, introducing FHIR resources, exercises, and pre-work for the next session. 2) FHIR resources are the basic building blocks of FHIR and include resources like Patient, Practitioner, Organization, Location, etc. Resources are defined in the FHIR specification. 3) The presentation demonstrates examining a resource like Patient from the FHIR specification and reading the defined fields, data types, and references between resources.
![CapabilityStatement
➢Documents the capabilities of a FHIR client and
server
➢A client should examine the CapabilityStatement of
a server to determine its supported behavior
➢The CapabilityStatement:
➢ is a key part of the FHIR conformance framework
➢ is a statement of the features, rules and behaviors of a
FHIR system
➢ may be used for system compatibility testing, code
generation, or as the basis for conformance testing
➢To declare themselves “FHIR Conformant”, a system
MUST publish a CapabilityStatement
29-May-2021
Presentation by Kumar Satyam
GET [base]/metadata{?mode=[mode]} {&_format=[mime-type]}
➢ Which FHIR version?
➢ What Resources?
➢ What search parameters?
➢ What formats?
➢ Type of server/client
➢ Who can I contact?
➢ Software name
➢ …
http://hl7.org/fhir/http.html#capabilities](https://image.slidesharecdn.com/fhirbasicssession3understandingfhirresources-210530172938/85/Understanding-Resources-in-FHIR-Session-3-of-FHIR-basics-training-series-9-320.jpg)
Understanding Resources in FHIR - Session 3 of FHIR basics training series
- 1. HL7 FHIR BASICS – SESSION 3 Understanding FHIR Resources Kumar Satyam https://www.linkedin.com/in/kumarsatyam/ https://twitter.com/kr_satyam 29-May-2021 Presentation by Kumar Satyam
- 2. Acknowledgements & Credits This Presentation borrows from the content of presentations by ➢Grahame Grieve ➢Lloyd McKenzie ➢Ewout Kramer ➢David Hay ➢ and other members of HL7 FHIR Community. 29-May-2021 Presentation by Kumar Satyam
- 3. Agenda • Recap previous sessions • Introduction to FHIR Resources • Reading patient Resource from Specification • Exercise • Pre-work for next session 29-May-2021 Presentation by Kumar Satyam
- 4. FHIR India Community • Open community of HL7 FHIR & Interoperability enthusiasts. • #fhirIndia – social media tag. • https://fhirindia.zulipchat.com/ - Discussion forum • https://www.linkedin.com/groups/13932672/ - LinkedIn Group 10K by Dec 2021. 29-May-2021 Presentation by Kumar Satyam
- 5. Recap 29-May-2021 Presentation by Kumar Satyam
- 6. What is FHIR • New Standard from HL7. • Latest version is R4. • “Resources” basic building blocks • Interoperability paradigms supported by FHIR • Restful API, • Messaging, • Documents • Services Specification:- https://www.hl7.org/fhir F-Fast H-Healthcare I-Interoperability R-Resources 29-May-2021 Presentation by Kumar Satyam
- 7. FHIR RESTFul Paradigm ➢“REpresentational State Transfer” ➢Represent your data as “resources” ➢Make “Resource” URI addressable ➢Use HTTP methods to perform CRUD operations ➢FHIR extends the HTTP methods for additional base operations ➢Resources may be exchanged using different formatted representations ▪ XML, JSON, RDF,ND-JSON . *RESTFul because loosely follows REST. 29-May-2021 Presentation by Kumar Satyam
- 8. Instance Level Allows a client to retrieve the current content of a resource, to update the content to a new state, to delete the resource, or to see its modification history Type Level Allows a client to search through the existing resources that already exist, create a new instance of a resource, or get the history of all changes to resource of the type. System Level Allows a client to determine what functionality is provided by the system, perform batches and transactions across multiple resource types, and get the history of all changes to all resources. 29-May-2021 Presentation by Kumar Satyam FHIR Base Services
- 9. CapabilityStatement ➢Documents the capabilities of a FHIR client and server ➢A client should examine the CapabilityStatement of a server to determine its supported behavior ➢The CapabilityStatement: ➢ is a key part of the FHIR conformance framework ➢ is a statement of the features, rules and behaviors of a FHIR system ➢ may be used for system compatibility testing, code generation, or as the basis for conformance testing ➢To declare themselves “FHIR Conformant”, a system MUST publish a CapabilityStatement 29-May-2021 Presentation by Kumar Satyam GET [base]/metadata{?mode=[mode]} {&_format=[mime-type]} ➢ Which FHIR version? ➢ What Resources? ➢ What search parameters? ➢ What formats? ➢ Type of server/client ➢ Who can I contact? ➢ Software name ➢ … http://hl7.org/fhir/http.html#capabilities
- 10. FHIR Resources 29-May-2021 Presentation by Kumar Satyam
- 11. Resources in FHIR • “Resources” are: • Small logically discrete units of exchange • Defined behavior and meaning • Known identity / location • Smallest unit of transaction A resource is an entity that: • has a known identity (a URL) by which it can be addressed • identifies itself as one of the types of resource defined in this specification • contains a set of structured data items as described by the definition of the resource type • has an identified version that changes if the contents of the resource change 29-May-2021 Presentation by Kumar Satyam
- 12. What is a Resource Examples •Patient, Practitioner, Organization •Location, Coverage, Invoice •AllergyIntolerance, Condition, FamilyHistory, CarePlan •Bundle, Binary, Composition 29-May-2021 Presentation by Kumar Satyam
- 13. What is a Resource Non -Examples •Gender • Too Small •Electronic Health Record • Too Big •Blood Pressure • Too Specific 29-May-2021 Presentation by Kumar Satyam
- 14. FHIR Resource Example http://hl7.org/fhir/summary.html#2.17.3 29-May-2021 Presentation by Kumar Satyam
- 15. Reading the Specification Go to the URL : • http://hl7.org/fhir/resourcelist.html Let’s take closer look at Patient Resource http://hl7.org/fhir/patient.html 29-May-2021 Presentation by Kumar Satyam
- 16. Resource Definitions • All resources have following : • An identity • Meta data • A base language • A reference to "Implicit Rules“ 29-May-2021 Presentation by Kumar Satyam
- 17. Domain Resource A domain resource is a resource that: • has a human-readable XHTML representation of the content of the resource (see Human Narrative in resources) • can contain additional related resources inside the resource (see Contained Resources) • can have additional extensions and modifierExtensions as well as the defined data (See Extensibility) As an abstract resource, this resource is never created directly; instead, one of its descendant resources (see List of Resources) is created. This resource extends the base Resource. All of the listed Resources except Bundle, Parameters and Binary extend this resource. 29-May-2021 Presentation by Kumar Satyam
- 18. Resource Guide This page describes the resources and their functional intent in more detail to assist implementers to understand their purpose and scope, and their supporting classifications. http://hl7.org/fhir/resourceguide.html 29-May-2021 Presentation by Kumar Satyam
- 19. Resource Guide 29-May-2021 Presentation by Kumar Satyam Concept Example Where to find Clinical Findings Laboratory Results Blood panels such as CBC with Differential, Liver Panel, etc. DiagnosticReport with Observations Imaging Study Findings CT Scans, MRI, Plain Radiographs, Ultrasounds) DiagnosticReport (some with Observations) Diagnostic Test Results EKG, pulmonary function test, EEG Observations (and maybe a DiagnosticReport) Vital Signs Temperature, Blood Pressure, Heart Rate, Respiratory Rate Observation Other Physical Exam Findings Auscultation findings Observation Pulmonary Artery Catheter readings Pulmonary artery pressure Observation Patient Problems, Allergies and Adverse Events Allergy Food or drug allergies AllergyIntolerance Clinical Diagnosis Diabetes, Congestive Heart Failure Condition
- 20. References Between Resources 29-May-2021 Presentation by Kumar Satyam
- 21. References • References can be relative or absolute • References don’t have to be to the same server • Server does not have to enforce integrity • Clients need to cater for broken links Contained Resources 29-May-2021 Presentation by Kumar Satyam
- 22. 29-May-2021 Presentation by Kumar Satyam DataTypes Primitive Data Types
- 23. 29-May-2021 Presentation by Kumar Satyam DataTypes Complex Data Types
- 24. 29-May-2021 Presentation by Kumar Satyam Icons & flags Flags Icons
- 25. Exercise 29-May-2021 Presentation by Kumar Satyam
- 26. Recording a consultation 29-May-2021 Presentation by Kumar Satyam 12-year-old-boy First consultation with Dr. Smith Complaining of pain in the right ear for 3 days with an elevated temperature. On examination, temperature 38° C and an inflamed right eardrum with no perforation. Diagnosis Otitis Media, and prescribed Amoxicillin 250mg 3 times per day for 7 days. Follow up consultation with Dr. Smith 2 days later returned with an itchy skin rash and breathing difficulties. On examination, urticarial rash on both arms. No evidence meningitis. Diagnosis of penicillin allergy. Antibiotics changed to Erythromycin 250mg 4 times per day for 10 days. Practitioner Patient Encounter Condition Observation Medication Allergy Intolerance
- 27. 29-May-2021 Presentation by Kumar Satyam 2 7 Encounter Encounter Practitioner Patient Asserter Performer Performer Performer Performer Performer Performer Asserter Asserter Prescriber Asserter Pain right ear 3 days Otitis media Itchy skin rash No breathing difficulties Elevated temperature Temperature 38°C Inflamed right drum Urticarial Rash Amoxicillin 250mg Erythromycin 250mg Penicillin Allergy ▪ Condition ▪ Observation ▪ Medication ▪ AllergyIntolerance ▪ Condition ▪ Observation ▪ Medication ▪ AllergyIntolerance Relationship
- 28. Clinfhir • Publicly available FHIR Client • Originally designed to support the Clinicians on FHIR events • Provides a suite of educational tools: • View resource instances • Build resources • View Profiles • Build simple profiles • Build simple ValueSets 29-May-2021 Presentation by Kumar Satyam
- 30. Pre-work for Next Session • Read and understand the blog post series : https://fhirblog.com/2021/05/23/accessing-lab-data-via-fhir-part-1/ Try to replicate the usecase yourself. 29-May-2021 Presentation by Kumar Satyam