HealthRecordSimpleQuery.Swift

func getRecordForType(type: HKClinicalTypeIdentifier, recordReadCompletionHandler:@escaping ([HKClinicalRecord]?) -> Void) {
    
    guard let healthRecordType = HKObjectType.clinicalType(forIdentifier: type) else {
        fatalError("*** Unable to create the record type ***")
    }
    
    let healthRecordQuery = HKSampleQuery(sampleType: healthRecordType, predicate: nil, limit: HKObjectQueryNoLimit, sortDescriptors: nil) { (query, samples, error) in
        
        guard let actualSamples = samples else {
            // Handle the error here.
            print("*** An error occurred: \(error?.localizedDescription ?? "nil") ***")
            recordReadCompletionHandler(nil)
            return
        }
        
        let healthRecordSamples = actualSamples as? [HKClinicalRecord]
        recordReadCompletionHandler(healthRecordSamples)
    }
    // Execute the query using single HKHealthStore execute API
    healthStore.execute(healthRecordQuery)
}