description: This extension applies to the Medication resource and is used to represent the strength of a medication as text. Use this extension for text representation of a medication strength as a whole. Coded representation of medication strength as a whole uses `Medication.code`. package_name: hl7.fhir.au.base derivation: constraint name: MedicationStrength type: Extension elements: url: pattern: {type: Uri, value: 'http://hl7.org.au/fhir/StructureDefinition/medication-strength'} index: 0 value: choices: [valueString] index: 2 valueString: {type: string, choiceOf: value, index: 3} package_version: 6.0.0-ballot class: extension kind: complex-type url: http://hl7.org.au/fhir/StructureDefinition/medication-strength base: http://hl7.org/fhir/StructureDefinition/Extension version: 6.0.0-ballot required: [valueString, value]