description: This observation represents the gravity of the potential risk for future life-threatening adverse reactions when exposed to a substance known to cause an adverse reaction in that individual. When the worst case result is assessed to have a life-threatening or organ system threatening potential, it is considered to be of high criticality. package_name: hl7.cda.us.ccda derivation: constraint name: CriticalityObservation type: http://hl7.org/cda/stds/core/StructureDefinition/Observation elements: templateId: index: 0 slicing: rules: open discriminator: - {path: root, type: value} min: 1 slices: criticality-obs: match: {root: 2.16.840.1.113883.10.20.22.4.145} schema: _required: true index: 1 elements: root: pattern: {type: String, value: 2.16.840.1.113883.10.20.22.4.145} index: 2 extension: {index: 3} required: [root] extensions: {} classCode: pattern: {type: Code, value: OBS} index: 4 moodCode: pattern: {type: Code, value: EVN} index: 5 code: index: 6 elements: code: pattern: {type: Code, value: 82606-5} index: 7 codeSystem: pattern: {type: String, value: 2.16.840.1.113883.6.1} index: 8 required: [codeSystem, code] text: short: SHOULD reference the portion of section narrative text corresponding to this entry index: 9 elements: reference: constraint: value-starts-octothorpe: {human: 'If reference/@value is present, it SHALL begin with a ''#'' and SHALL point to its corresponding narrative', source: 'http://hl7.org/cda/us/ccda/StructureDefinition/CriticalityObservation', severity: error, expression: value.exists() implies value.startsWith('#')} index: 10 statusCode: index: 11 elements: code: pattern: {type: Code, value: completed} index: 12 required: [code] value: type: http://hl7.org/cda/stds/core/StructureDefinition/CD binding: {strength: required, valueSet: 'http://cts.nlm.nih.gov/fhir/ValueSet/2.16.840.1.113883.1.11.20549'} index: 13 package_version: 3.0.0-ballot class: logical kind: logical url: http://hl7.org/cda/us/ccda/StructureDefinition/CriticalityObservation base: http://hl7.org/cda/stds/core/StructureDefinition/Observation version: 3.0.0-ballot required: [value, statusCode, templateId]