Nexus EMR profile for an ATTACHED DOCUMENT -- a clinical document that exists as a file:
scanned paper, incoming faxes, external consult letters received as PDF, signed consent forms,
patient-uploaded files. FHIR holds the metadata and clinical context; the bytes live in
document storage and are reached through content.attachment.url.
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
attachment-has-data-or-url
this profile
error
DocumentReference
Each attachment must have either inline data (base64) or a url (blob storage URI), or both content.all(attachment.data.exists() or attachment.url.exists())
A field mapping SHALL appear only on a form template (an identifier under NamingSystem/nexus-form-template): it names the fillable fields of the template's file that a chart value pre-fills, and a filed form carries the values themselves extension.where(url = '../StructureDefinition/nexus-form-template-field-mapping').exists() implies identifier.where(system = '../NamingSystem/nexus-form-template').exists()
nexus-documentreference-subject-unless-template
this profile
error
DocumentReference
A DocumentReference SHALL carry a subject unless it is a form template. A template (an identifier under NamingSystem/nexus-form-template) is the tenant-wide blank of a form type and is about no patient; every other document is about one. subject.exists() or identifier.where(system = '../NamingSystem/nexus-form-template').exists()
dom-2
inherited
error
DocumentReference
If the resource is contained in another resource, it SHALL NOT contain nested Resources contained.contained.empty()
dom-3
inherited
error
DocumentReference
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
DocumentReference
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
DocumentReference
If a resource is contained in another resource, it SHALL NOT have a security label contained.meta.security.empty()
dom-6
inherited
warning
DocumentReference
A resource should have narrative for robust management text.div.exists()
ele-1
inherited
error
DocumentReference.meta
All FHIR elements must have a @value or children hasValue() or (children().count() > id.count())
ext-1
inherited
error
DocumentReference.meta.extension
Must have either extensions or value[x], not both extension.exists() != value.exists()