Introduction to terminology
summary
Explains how FHIR ties terminologies to data by using CodeSystem, ValueSet, ConceptMap resources and operations that return real answers: $lookup shows a term’s properties, $validate-code checks membership, $expand materializes a ValueSet, and $translate uses a ConceptMap to map SNOMED/LOINC/RxNorm/ICD codes. Demonstrates codableConcept/coding patterns (gender, language, SARS‑CoV‑2 NAT test with SNOMED and LOINC), versioned validation, advice to retain original codes, and tradeoffs around hosting, performance and licensing. $lookup, $expand, $translate
AI-written summary · about
chapters (22)
- 0:00Intro
- 0:47Session Objective
- 1:38Variation abounds: clinical measures
- 2:58Variation abounds: units of measure
- 6:51Data Types for Coded Information code
- 13:39Main FHIR Terminology Resources
- 16:45A more complicated example: LOINC
- 17:52Operations: CodeSystem
- 18:50Get info about your favorite LOINC term
- 19:30Check if a code you got is a real LOINC term
- 20:46ValueSet: main metadata
- 21:10ValueSet: definition
- 22:39Example ValueSet: COVID-19 lab tests
- 23:18Example ValueSet: COVID-19 Diagnoses
- 23:58Example ValueSet: O2 Saturation Tests
- 25:07Operations: ValueSet
- 26:12$expand Operation: execute the definition
- 26:44$expand Operation with filter parameter
- 27:23ConceptMap: main metadata
- 27:47ConceptMap: group of mappings
- 28:59A Caution, changes ahead...
- 30:12Concept Map from Standard Terminologies
related talks
43mFollow the Yellow-Brick Code (A Terminology journey)
30mIntroduction to SNOMED with FHIR
41mMastering FHIR Terminology: Navigating advanced services
40mUsing LOINC with FHIR
34mIntroduction to FHIR for HL7 v2 experts
42mSNOMED CT with FHIR
45mUsing Terminology Services: further steps
22mA general CodeSystem query language aka ECL for FHIR