description: This Observation profile is inspired by both [US Core Simple Observation](https://hl7.org/fhir/us/core/STU6.1/) and the [IHE SDC/eCP on FHIR Observation Profile](http://hl7.org/fhir/uv/ihe-sdc-ecc/StructureDefinition-ihe-sdc-ecc-Observation.html). It adds category to differentiate Section and Question Observations. Section(s) contain one or more hasMember relationships to Questions, will not have a value element, and have no derivedFrom relationships. Questions have a derivedFrom relationship with Section AND contain EITHER a value element OR one or more hasMember relationships.
package_name: hl7.fhir.us.cancer-reporting
derivation: constraint
name: USPathologyObservation
type: Observation
elements:
  category:
    binding: {strength: required, valueSet: 'http://hl7.org/fhir/us/cancer-reporting/ValueSet/us-pathology-form-category-codes'}
    mustSupport: true
    index: 1
    slicing:
      slices:
        cap-form-category:
          match: {}
          schema:
            binding: {strength: required, valueSet: 'http://hl7.org/fhir/us/cancer-reporting/ValueSet/us-pathology-form-category-codes'}
            mustSupport: true
            _required: true
            index: 1
          min: 1
          max: 1
  hasMember:
    type: Reference
    short: Child observation reference
    mustSupport: true
    refers: ['http://hl7.org/fhir/us/cancer-reporting/StructureDefinition/us-pathology-observation']
    index: 11
  derivedFrom:
    type: Reference
    short: Parent observation reference
    mustSupport: true
    refers: ['http://hl7.org/fhir/us/cancer-reporting/StructureDefinition/us-pathology-observation']
    index: 12
  valueQuantity:
    type: Quantity
    choiceOf: value
    index: 7
    slicing:
      slices:
        valueQuantity:
          match: {}
          schema: {type: Quantity, choiceOf: value, index: 7}
          min: 0
          max: 1
  value:
    choices: [valueCodeableConcept]
    index: 9
    slicing:
      slices:
        valueCodeableConcept:
          match: {}
          schema:
            choices: [valueCodeableConcept]
            index: 9
          min: 0
          max: 1
  component: {short: Additional entry, mustSupport: true, index: 13}
  code: {short: SDC question ID, index: 2}
  identifier: {short: The SDC instanceGUID, mustSupport: true, index: 0}
  valueCodeableConcept:
    type: CodeableConcept
    choiceOf: value
    index: 10
    slicing:
      slices:
        valueCodeableConcept:
          match: {}
          schema: {type: CodeableConcept, choiceOf: value, index: 10}
          min: 0
          max: 1
package_version: 2.0.0
class: profile
kind: resource
url: http://hl7.org/fhir/us/cancer-reporting/StructureDefinition/us-pathology-observation
base: http://hl7.org/fhir/us/core/StructureDefinition/us-core-simple-observation
version: 2.0.0
required: [identifier, category]