SMIS API Guide

SMIS Observation

SMIS Resources
Profiles
Interactions
Observation Identifiers
Observation Fields
Related Vital Signs Observation Fields

SMIS Resources

Following SMIS resources are represented in FHIR as observations.

Name	Category (system#code)	Code (system#code)
Nursing report	http://smis.ch/fhir/CodeSystem/smis-observation-category-code#open-type	http://smis.ch/fhir/types/open#nursing-report
Unstructured vital signs	http://smis.ch/fhir/CodeSystem/smis-observation-category-code#open-type	http://smis.ch/fhir/types/open#vital-signs
Structured vital signs	http://hl7.org/fhir/observation-category#vital-signs	http://loinc.org#85353-1

Profiles

Default:
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Related:
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Vital signs:
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Observation			http://hl7.org/fhir/StructureDefinition/Observation	There are no (further) constraints on this element Data type http://hl7.org/fhir/StructureDefinition/Observation
status			Fixed Value	There are no (further) constraints on this element Element id Observation.status Fixed value final
category		1..	Binding	There are no (further) constraints on this element Element id Observation.category Binding observationCategory (required)
subject	I		Reference(SMIS Patient Profile)	There are no (further) constraints on this element Element id Observation.subject Data type Reference(SMIS Patient Profile) Allowed aggregation: referenced Constraints smis-obs-1: Either reference or identifier should be present `reference.exists() or identifier.exists()`
effectiveDateTime			dateTime	There are no (further) constraints on this element Element id Observation.effective[x]:effectiveDateTime Data type dateTime
value[x]				There are no (further) constraints on this element Element id Observation.value[x]
valueQuantity			Quantity	There are no (further) constraints on this element Data type Quantity
valueString			string	There are no (further) constraints on this element Data type string
related				There are no (further) constraints on this element
target			Reference(SMIS Related Observation Profile)	There are no (further) constraints on this element Element id Observation.related.target Data type Reference(SMIS Related Observation Profile) Allowed aggregation: contained

The subject may be a reference to a patient by internal SMIS id

"subject": {
  "reference": "Patient/1489161154728048"
}

or an identifier identifying the patient with the external id.

"subject": {
  "identifier": {
    "system": "http://smis.ch/fhir/patient/external_id",
    "value": "FDDEC0EA-A0FA-448C-916E-51C777AD97E8"
  }
}

Interactions

update
create
search by patient and category
- Search parameters:
  - patient (required)
  - category (required)
Search by patient and identifier
- Search parameters:
  - patient (required)
  - identifier (required)

It's possible to search for a resource by internal or external patient id:

GET /fhir/MedicationStatement?patient=1489161154728048
GET /fhir/MedicationStatement?patient.identifier=FDDEC0EA-A0FA-448C-916E-51C777AD97E8

Observation Identifiers

Name	System	Sample Value
Internal Element Id	http://smis.ch/fhir/element/internal_id	1297774007642120
External Element Id	http://smis.ch/fhir/element/external_id	304C24D6-007B-465D-B608-26DCC3DA63AF

Observation Fields

The observation profile is open. Therefore, all attributes of the base observation are allowed. SMIS only needs the following attributes, all others are ignored.

Path	Comment
id	Numeric SMIS id
identifier[system=http://smis.ch/fhir/element/external_id]	Required
category.coding[1].system	["http://smis.ch/fhir/CodeSystem/smis-observation-category-codes", "http://hl7.org/fhir/observation-category"]
category.coding[1].code	["open-type", "vital-signs"]
code.coding[1].system	["http://smis.ch/fhir/types/open", "http://loinc.org"]
code.coding[1].code	["vital-signs", "nursing-report", "85353-"]
subject.reference	Required if subject.identifier is empty. Numeric ID
subject.identifier.system	Required if subject.reference is empty. Fixed: http://smis.ch/fhir/patient/external_id
subject.identifier.value	Required if subject.reference is empty. External patient id
effective	Required
status	final
value	Required if category is 'open-type'
related	Required if category is 'vital-signs'

Path	Comment
category.coding[1].system	http://hl7.org/fhir/observation-category
category.coding[1].code	vital-signs
code.coding[1].system	http://loinc.org
code.coding[1].code	One of https://www.hl7.org/fhir/valueset-observation-vitalsignresult.html
status	final
valueQuantity.value	Required
valueQuantity.system	http://unitsofmeasure.org
valueQuantity.code	Required