Metadata Title EXM55 - Median Emergency Department Visit Duration Library (Example Continuous Variable Measure Library) Version 5.0.0 Identifier EXM55 Identifier urn:oid:2.16.840.1.113883.4.642.40.61.28.13 Approval Date 2019-08-03 Last Review Date 2019-08-03 Experimental true Jurisdiction 001 from http://unstats.un.org/unsd/methods/m49/m49.htm Topic FHIR Topic CQL Steward (Publisher) HL7 International / Clinical Quality Information Description This library is used as an example in the FHIR Quality Measure Implementation Guide Type logic-library from http://terminology.hl7.org/CodeSystem/library-type Dependency Description: Library FHIRHelpers Resource: http://hl7.org/fhir/uv/cql/Library/FHIRHelpers|4.0.1 Canonical URL: http://hl7.org/fhir/uv/cql/Library/FHIRHelpers|4.0.1 Dependency Description: Code System Diagnosis Role Resource: Diagnosis Role Canonical URL: http://terminology.hl7.org/CodeSystem/diagnosis-role Dependency Description: Value Set Emergency Department Visit Resource: Emergency Department Visit Canonical URL: http://cts.nlm.nih.gov/fhir/ValueSet/2.16.840.1.113883.3.117.1.7.1.292 Dependency Description: Value Set Psychiatric/Mental Health Patient Resource: Psychiatric/Mental Health Diagnosis Canonical URL: http://cts.nlm.nih.gov/fhir/ValueSet/2.16.840.1.113883.3.117.1.7.1.299 Dependency Description: Value Set Hospital Settings Resource: Hospital Settings Canonical URL: http://cts.nlm.nih.gov/fhir/ValueSet/2.16.840.1.113762.1.4.1111.126 Data Requirement Type: Encounter Profile(s): Encounter Data Requirement Type: Condition Profile(s): Condition Code Filter(s): Path: id Data Requirement Type: Encounter Profile(s): Encounter Code Filter(s): Path: type ValueSet: Emergency Department Visit Parameters Name Use Card. Type Documentation Measurement Period In 0..1 Period Patient Out 0..1 Patient Inpatient Encounter Out 0..* Encounter Initial Population Out 0..* Encounter Measure Population Out 0..* Encounter Measure Population Exclusion Out 0..* Encounter Stratification 1 Out 0..* Encounter Stratification 2 Out 0..* Encounter Stratification 3 Out 0..* Encounter Library Content CQL Content /* This example is a work in progress and should not be considered a final specification or recommendation for guidance. This example will help guide and direct the process of finding conventions and usage patterns that meet the needs of the various stakeholders in the measure development community. */ library EXM55 version '5.0.0' using FHIR version '4.0.1' include hl7.fhir.uv.cql.FHIRHelpers version '4.0.1' called FHIRHelpers codesystem "Diagnosis Role": 'http://terminology.hl7.org/CodeSystem/diagnosis-role' valueset "Emergency Department Visit" : 'http://cts.nlm.nih.gov/fhir/ValueSet/2.16.840.1.113883.3.117.1.7.1.292' valueset "Psychiatric/Mental Health Patient" : 'http://cts.nlm.nih.gov/fhir/ValueSet/2.16.840.1.113883.3.117.1.7.1.299' valueset "Hospital Settings" : 'http://cts.nlm.nih.gov/fhir/ValueSet/2.16.840.1.113762.1.4.1111.126' code "Billing": 'billing' from "Diagnosis Role" display 'Billing' parameter "Measurement Period" Interval<DateTime> context Patient define "Initial Population" : "Inpatient Encounter" Encounter with ["Encounter" : "Emergency Department Visit"] ED such that ED.status = 'finished' and ED.period ends 1 hour or less before start of Encounter.period define "Measure Population" : "Initial Population" define "Inpatient Encounter" : ["Encounter"] Encounter where LengthInDays(Encounter.period) <= 120 and Encounter.period ends during "Measurement Period" define "Measure Population Exclusion" : "Inpatient Encounter" Encounter with ["Encounter" : "Emergency Department Visit"] ED such that ED.period ends 1 hour or less before start of Encounter.period and ED.status = 'finished' and ED.hospitalization.admitSource in "Hospital Settings" define function "PrincipalDiagnosis"(Encounter Encounter): (singleton from (Encounter.diagnosis D where D.use ~ ToConcept("Billing") and D.rank.value = 1)) PD return singleton from ([Condition: id in "GetId"(PD.condition.reference)]) define function "LengthInDays"(Value Interval<DateTime>): difference in days between start of Value and end of Value define function "GetId"(uri String): Last(Split(uri, '/')) define "Stratification 1" : "Inpatient Encounter" Encounter where not (PrincipalDiagnosis(Encounter).code in "Psychiatric/Mental Health Patient") define "Stratification 2" : "Inpatient Encounter" Encounter where PrincipalDiagnosis(Encounter).code in "Psychiatric/Mental Health Patient" define "Stratification 3" : "Inpatient Encounter" Encounter where PrincipalDiagnosis(Encounter) is null //Measure Observation define function "Related ED Visit" (Encounter "Encounter" ) : Last(["Encounter" : "Emergency Department Visit"] ED where ED.status = 'finished' and ED.period ends 1 hour or less before start of Encounter.period sort by start of period ) define function "Measure Observation" (Encounter "Encounter" ) : duration in minutes of "Related ED Visit"(Encounter).period ELM XML Content Encoded data ELM JSON Content Encoded data Generated using version 0.5.4 of the sample-content-ig Liquid templates
EXM55 - Median Emergency Department Visit Duration Library (Example Continuous Variable Measure Library)
HL7 International / Clinical Quality Information
This library is used as an example in the FHIR Quality Measure Implementation Guide
Value Set Psychiatric/Mental Health Patient