Defines the Nexus EMR FHIR profile for referrals: a request that another clinician or service accept the patient, for consultation, second opinion, or ongoing management. Aligned to the pan-Canadian CA-eReC / Ontario eReferral contract, which is the shape Nexus already exchanges with Ocean. Distinct from NexusEmrCoreServiceRequest, which governs laboratory, imaging and procedure ORDERS and fixes intent to order.
Invariants
Every rule in force on a conforming instance. This profile rows are stated here; inherited rows come from the base resource and are listed so that a constraint named on an element is findable. Invariant keys elsewhere on this page link into this table.
Key
Source
Severity
On
Rule
nexus-note-extension-not-where-native
this profile
error
ServiceRequest
The resource-note extension is not used on a resource that has a native note element -- that element is the home extension('../StructureDefinition/nexus-emr-resource-note').empty()
referral-category-coded
this profile
warning
ServiceRequest
At least one category SHOULD carry a SNOMED CT coding identifying the receiving service or specialty (recommended, not enforced: a destination with no usable code carries text instead) category.coding.where(system = 'http://snomed.info/sct').exists()
referral-code-has-text
this profile
error
ServiceRequest
When code is present it SHALL carry text, so the requested service stays legible when no coded value is recognised code.exists() implies code.text.exists()
dom-2
inherited
error
ServiceRequest
If the resource is contained in another resource, it SHALL NOT contain nested Resources contained.contained.empty()
dom-3
inherited
error
ServiceRequest
If the resource is contained in another resource, it SHALL be referred to from elsewhere in the resource or SHALL refer to the containing resource contained.where((('#'+id in (%resource.descendants().reference
dom-4
inherited
error
ServiceRequest
If a resource is contained in another resource, it SHALL NOT have a meta.versionId or a meta.lastUpdated contained.meta.versionId.empty() and contained.meta.lastUpdated.empty()
dom-5
inherited
error
ServiceRequest
If a resource is contained in another resource, it SHALL NOT have a security label contained.meta.security.empty()
dom-6
inherited
warning
ServiceRequest
A resource should have narrative for robust management text.div.exists()
ele-1
inherited
error
ServiceRequest.meta
All FHIR elements must have a @value or children hasValue() or (children().count() > id.count())
ext-1
inherited
error
ServiceRequest.meta.extension
Must have either extensions or value[x], not both extension.exists() != value.exists()
prr-1
inherited
error
ServiceRequest
orderDetail SHALL only be present if code is present orderDetail.empty() or code.exists()