The 30-day unplanned readmission measures are estimates of unplanned readmission to any acute care hospital within 30 days of discharge from a hospitalization for any cause related to medical conditions, including heart attack or acute myocardial infarction (AMI), heart failure (HF), pneumonia, chronic obstructive pulmonary disease (COPD), and stroke; and surgical procedures, including hip/knee replacement and coronary artery bypass graft (CABG). The 30-day unplanned hospital-wide readmission measure focuses on whether patients who were discharged from a hospitalization were hospitalized again within 30 days. The hospital-wide readmission measure includes all medical, surgical and gynecological, neurological, cardiovascular, and cardiorespiratory patients.

The 30-day death measures are estimates of deaths within 30-days of a hospital admission from any cause related to medical conditions, including heart attack, heart failure, pneumonia, COPD, and stroke; and surgical procedures, including CABG. Hospitals’ rates are compared to the national rate to determine if hospitals’ performance on these measures is better than the national rate (lower), no different than the national rate, or worse than the national rate (higher). For some hospitals, the number of cases is too small to reliably compare their results to the national average rate. CMS chose to measure death within 30 days instead of inpatient deaths to use a more consistent measurement time window because length of hospital stay varies across patients and hospitals. Rates are provided in the downloadable databases as decimals and typically indicate information that is presented on the Hospital Compare website as percentages. Lower percentages for readmission and mortality are better. In this dataset, the State and national averages do not include Veteran Health Administration (VHA) hospital data.

Date Created	2015-05-31
Last Modified	2018-01-26
Version	2018-01-26
Update Frequency	Quarterly
Temporal Coverage	N/A
Spatial Coverage	United States
Source	John Snow Labs => Centers for Medicare & Medicaid Services
Source License URL	John Snow Labs Standard License
Source License Requirements	N/A
Source Citation	N/A
Keywords	Hospital Compare, Quality of Care, Quality Assurance, Hospital Survey, Hospital Experience, Unplanned Hospital Visits, Hospital Compare Readmissions, Hospital Compare Deaths
Other Titles	Payment and Value of Care, Central Line-Associated Bloodstream Infections, National Statistics on Unplanned Hospital Visits, Hospital Compare Readmissions and Deaths

Name	Description	Type	Constraints
Measure_Name	The name of the Measure.	string	required : 1
Measure_ID	The identification (ID) of the Readmission measures.	string	required : 1
National_Rate	The national observed readmissions rate for the performance safety indicator.	number	level : Ratio
Number_of_Hospitals_Worse	Measure of hospital performance. To categorize hospital performance, CMS estimates each hospital’s RSCR and the corresponding 95% interval estimate. CMS assigns hospitals to a performance category by comparing each hospital’s RSCR interval estimate to the national observed readmission rate. Comparative performance for hospitals with 25 or more eligible cases is classified as follows: “Worse than US national rate” if the entire 95% interval estimate surrounding the hospital’s rate is higher than the national observed readmission rate.	integer	level : Ratio
Number_of_Hospitals_Same	“No different than US national rate” if the 95% interval estimate surrounding the hospital’s rate includes the national readmission rate.	integer	level : Ratio
Number_of_Hospitals_Better	“Better than US national rate” if the entire 95% interval estimate surrounding the hospital’s rate is lower than the national readmission rate.	integer	level : Ratio
Number_of_Hospitals_Too_Few	If a hospital has fewer than 25 eligible cases for a measure, CMS assigns the hospital to a separate category: “The number of cases is too small (fewer than 25) to reliably tell how well the hospital is performing;” If a hospital has fewer than 25 eligible cases, the hospital’s readmission rates and interval estimates will not be publicly reported for the measure.	integer	level : Ratio
Measure_Start_Date	The first day the data measures were collected. The date format is YYYY-MM-DD.	date	required : 1
Measure_End_Date	The last day the data measures were collected. The date format is YYYY-MM-DD.	date	required : 1
Number_of_Hospitals_Fewer	Refers to the number of hospitals that are fewer in number than the U.S. national rate.	integer	level : Ratio
Number_of_Hospitals_Average	Indicates the number of hospitals that are average as compared to U.S. national rate.	integer	level : Ratio
Number_of_Hospitals_More	Refers to the number of hospitals that are more in number than U.S. national rate.	integer	level : Ratio
Number_of_Hospitals_Too_Small	"The number of cases is too small (fewer than 25) to reliably tell how well the hospital is performing" if a hospital has fewer than 25 eligible cases.	integer	level : Ratio
ICD10_Code	The International Classification of Diseases ICD-10 code/codes for the specific measure.	string	required : 1
ICD10_Description	Description used by physicians and other healthcare providers to classify and code all diagnoses, symptoms and procedures recorded in conjunction with hospital care.	string	required : 1
HCPCS_Code	The Healthcare Common Procedure Coding System (HCPCS) code/codes for the specific measure.	string	required : 1
HCPCS_Description	Description of the Level II of the HCPCS standardized coding system that is used primarily to identify products, supplies, and services not included in the CPT codes, such as ambulance services and durable medical equipment, prosthetics, orthotics, and supplies (DMEPOS) when used outside a physician's office.	string	required : 1

Measure_Name	Measure_ID	National_Rate	Number_of_Hospitals_Worse	Number_of_Hospitals_Same	Number_of_Hospitals_Better	Number_of_Hospitals_Too_Few	Measure_Start_Date	Measure_End_Date	Number_of_Hospitals_Fewer	Number_of_Hospitals_Average	Number_of_Hospitals_More	Number_of_Hospitals_Too_Small	ICD10_Code	ICD10_Description	HCPCS_Code	HCPCS_Description
Heart failure (HF) 30-Day Readmission Rate	READM_30_HF	21.6	118	3536	85	867	2013-07-01	2016-06-30					I50.9	Heart failure, unspecified	G9680	This code is for onsite acute care treatment of a nursing facility resident with CHF; may only be billed once per day per beneficiary
Hospital return days for heart failure patients	EDAC_30_HF						2013-07-01	2016-06-30	475	2461	803	867	I50.9	Heart failure, unspecified	G9680	This code is for onsite acute care treatment of a nursing facility resident with CHF; may only be billed once per day per beneficiary
Pneumonia (PN) 30-Day Readmission Rate	READM_30_PN	16.9	177	3987	67	430	2013-07-01	2016-06-30					J18.9	Pneumonia, unspecified organism	G9679	This code is for onsite acute care treatment of a nursing facility resident with pneumonia; may only be billed once per day per beneficiary
Rate of readmission after hip/knee replacement	READM_30_HIP_KNEE	4.4	35	2732	44	650	2013-07-01	2016-06-30					S78.119D	Complete traumatic amputation at level between unspecified hip and knee	L5850	Addition, endoskeletal system, above knee or hip disarticulation, knee extension assist
Rate of unplanned hospital visits after colonoscopy (per 1,000 colonoscopies)	OP_32	16.4	1	3052	1	854	2016-01-01	2016-12-31					G1021	Colorectal cancer screening; colonoscopy on individual not meeting the criteria for high risk	Z12.11	Encounter for screening for malignant neoplasm of colon
Rate of readmission after discharge from hospital (hospital-wide)	READM_30_HOSP_WIDE	15.3	287	4052	197	175	2015-07-01	2016-06-30					Z03.89	Encounter for observation for other suspected diseases and conditions ruled out	G9310	Unplanned hospital readmission within 30 days of principal procedure
Rate of readmission for stroke patients	READM_30_STK	12.2	45	2566	7	1768	2013-07-01	2016-06-30					I63.9	Cerebral infarction, unspecified	G9766, G9767	Patients who are transferred from one institUTIon to another with a known diagnosis of CVA for endovascular stroke treatment, Hospitalized patients with newly diagnosed CVA considered for endovascular stroke treatment
Rate of readmission for chronic obstructive pulmonary disease (COPD) patients	READM_30_COPD	19.8	63	3641	19	903	2013-07-01	2016-06-30					J44.0, J44.1, J44.9	Chronic obstructive pulmon disease w acute lower resp infct, Chronic obstructive pulmonary disease w (acute) exacerbation, Chronic obstructive pulmonary disease, unspecified	G9681	This code is for onsite acute care treatment of a resident with COPD or asthma; may only be billed once per day per beneficiary
Hospital return days for heart attack patients	EDAC_30_AMI						2013-07-01	2016-06-30	242	1436	493	1993	I21.3, I21.4	ST elevation (STEMI) myocardial infarction of unspecified site, Non-ST elevation (NSTEMI) myocardial infarction	C9606	Percutaneous transluminal revascularization of acute total/subtotal occlusion during acute myocardial infarction, coronary artery or coronary artery bypass graft, any combination of drug-eluting intracoronary stent, atherectomy and angioplasty, including aspiration thrombectomy when performed, single vessel
Acute Myocardial Infarction (AMI) 30-Day Readmission Rate	READM_30_AMI	16.3	16	2142	13	1993	2013-07-01	2016-06-30					I21.3, I21.4	ST elevation (STEMI) myocardial infarction of unspecified site, Non-ST elevation (NSTEMI) myocardial infarction	C9606	Percutaneous transluminal revascularization of acute total/subtotal occlusion during acute myocardial infarction, coronary artery or coronary artery bypass graft, any combination of drug-eluting intracoronary stent, atherectomy and angioplasty, including aspiration thrombectomy when performed, single vessel

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