International Classification of DiseasesInternational Classification of Functioning, Disability and HealthClinical CodingInternational CooperationDisability EvaluationClassificationDisabled PersonsWorld Health OrganizationUnited StatesTerminology as TopicCurrent Procedural TerminologyDatabases, FactualInternationalityActivities of Daily LivingInternational AgenciesForms and Records ControlRetrospective StudiesNursingReproducibility of ResultsDeath CertificatesHospitalizationIncidenceGenetic CodeOutcome Assessment (Health Care)Cohort StudiesNursing ProcessPatient DischargeAlgorithmsHealth Status IndicatorsHeadache DisordersRisk FactorsVocabulary, ControlledPhysical and Rehabilitation MedicineDiagnosisAge DistributionCause of DeathRehabilitationSocial ParticipationInternational Normalized RatioHospital RecordsDiseaseAge FactorsInfant, NewbornMigraine DisordersRegistriesNursing DiagnosisPrevalenceSex DistributionEpisode of CareSeverity of Illness IndexPopulation SurveillanceDiagnosis-Related GroupsQuestionnairesMedical RecordsTreatment OutcomeHospital ChargesCross-Sectional StudiesWounds and InjuriesComorbidityDisabled ChildrenVital StatisticsInsurance Claim ReviewEuropeNational Center for Health Statistics (U.S.)StrokeTime FactorsDatabases as TopicSensitivity and SpecificityParasomniasSex FactorsPhysical Therapy SpecialtyDelphi TechniqueHeadacheLength of StayInsurance Claim ReportingHealth Systems PlansInpatientsMigraine without AuraAbbreviated Injury ScaleProspective StudiesCerebral PalsyWorld HealthDocumentationSystematized Nomenclature of MedicineGoalsRehabilitation CentersMedicareFollow-Up StudiesEmergency Service, HospitalLogistic ModelsHospital MortalityPrognosisMedical Records Systems, ComputerizedPhysical Therapy ModalitiesCodes of EthicsMigraine with AuraChronic DiseaseAustraliaObserver VariationConcept Formation