Core Concepts

FHIR Profiles

A FHIR profile constrains a base resource to apply domain-specific rules.

Example:

Profile: MyPatient
Parent: Patient
Title: "My custom Patient profile"

Elements are individual fields within a resource. Cardinality defines min..max occurrences:

* name 1..* MS  // 1 or more mandatory
* birthDate 0..1 // 0 or 1 optional

Custom data elements that extend the standard FHIR resource:

* extension contains race 0..1

Discriminating between different types of the same element:

* component ^slicing.discriminator.type = #pattern
* component ^slicing.discriminator.path = "code"

Constrain coded elements to specific value sets:

* status from ObservationStatus (required)

For more information, see IR Design.