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This variable is contained in the following files:
Master Beneficiary Summary File (MBSF) Base A/B/C/D V2 Accountable Health Communities (AHC) Model Oncology Care Model (OCM) Current Clinical Status File Oncology Care Model (OCM) Clinical and Staging File Oncology Care Model (OCM) Medicare Bayesian Improved Surname Geocoding (MBISG) Acute Hospital Care at Home (AHCAH) - Patient Acute Hospital Care at Home (AHCAH) - Hospital Inpatient Rehab Facility-Patient Assessment Instrument TAF Demographic and Eligibility File Million Hearts® Cardiovascular Disease Risk Reduction (Million Hearts®) Model Alignment Files Million Hearts® Cardiovascular Disease Risk Reduction (Million Hearts®) Model Provider List File Million Hearts® Cardiovascular Disease Risk Reduction (Million Hearts®) Model Practice List File Million Hearts® Cardiovascular Disease Risk Reduction (Million Hearts®) Model Visit File Million Hearts® Cardiovascular Disease Risk Reduction (Million Hearts®) Model Beneficiary Demographic File Million Hearts® Cardiovascular Disease Risk Reduction (Million Hearts®) Model Final Clinical File Million Hearts® Cardiovascular Disease Risk Reduction (Million Hearts®) Model Raw Clinical File Million Hearts® Cardiovascular Disease Risk Reduction Model CMMI Model Data Sharing (CMDS) Beneficiary File CMMI Model Data Sharing (CMDS) Provider File CMMI Model Data Sharing (CMDS) Entity File CMMI Model Data Sharing (CMDS) Model Participation Data Initiative Healthcare Effectiveness Data and Information Set (HEDIS) File 2: Plan All-Cause Readmission (PCR) Measure Healthcare Effectiveness Data and Information Set (HEDIS) File 1: Measures File (does not include Plan All-Cause Readmission measure) MBSF 30 CCW Chronic Conditions Next Generation ACO Model Provider RIF Next Generation ACO Model Beneficiary RIF Medicare-Medicaid Linked Enrollee Analytic Data Source (MMLEADS) 3.0 TAF Annual Managed Care Plan (APL) TAF Annual Provider (APR) Comprehensive ESRD Care (CEC) Model - Provider Comprehensive ESRD Care (CEC) Model - Beneficiary Home Health Outcome and Assessment Information Set (OASIS) Long Term Care Minimum Data Set (MDS) 2.0 Plan Characteristics File Long Term Care Minimum Data Set (MDS) 3.0 Long Term Care Minimum Data Set (MDS) - Swing-Bed 3.0 MAX Personal Summary File Medicare-Medicaid Linked Enrollee Analytic Data Source (MMLEADS) 2.0 TAF Pharmacy File TAF Other Services File TAF Long Term Care File TAF Inpatient File Skilled Nursing Facility (Encounter) Outpatient (Encounter) Inpatient (Encounter) Home Health Agency (Encounter) Durable Medical Equipment (Encounter) Carrier (Encounter) Risk Score Files Value Modifier Practice-Level File Value Modifier Beneficiary-Level File Medicare Shared Savings Program Accountable Care Organizations (ACO) Beneficiary-level RIF Medicare Shared Savings Program Accountable Care Organizations (ACO) Provider-level RIF Pioneer Accountable Care Organization (ACO) Medicare Data on Provider Practice and Specialty (MD-PPAS) Healthcare Effectiveness Data and Information Set (HEDIS) Long Term Care Minimum Data Set (MDS) - Swing-Bed 2.0 Consumer Assessment of Healthcare Providers & Systems RIF National Health and Aging Trends Study (NHATS) - Medicare Linked Data Health and Retirement Survey - Medicare Linked Data Health Outcomes Survey RIF Medicaid Enrollee Supplemental File (MESF): National Death Index (NDI) Segment Medicaid Enrollee Supplemental File (MESF): Conditions Segment MBSF Other Chronic or Potentially Disabling Conditions MBSF National Death Index (NDI) MBSF Cost and Use MBSF 27 CCW Chronic Conditions MBSF Base A/B/C/D MAX Long Term Care File MAX Inpatient File MAX Other Services File MAX Prescription Drug File Value Modifier NPI Practice-Level File Part D Medication Therapy Management Data File Part D Plan Election Type Beneficiary Summary File Part D Event (PDE) File Part D Formulary File Part D Pharmacy Characteristics File Part D Prescriber Characteristics File Part D Drug Characteristics File Carrier (Fee-for-Service) Durable Medical Equipment (Fee-for-Service) Home Health Agency (Fee-for-Service) Hospice (Fee-for-Service) Inpatient (Fee-for-Service) Outpatient (Fee-for-Service) Skilled Nursing Facility (Fee-for-Service) Medicare Provider Analysis and Review (MedPAR)
SAS Name
DGNS_1_CCSR_CTGRY_CD
AHRQ Clinical Classifications Software Refined (CCSR) Diagnosis Category Code. The CCSR aggregates International Classification of Diseases, 10th Revision, Clinical Modification/Procedure Coding System (ICD-10-CM/PCS) codes into clinically meaningful categories. The CCSR for ICD-10-CM diagnoses aggregates more than 70,000 ICD-10-CM diagnosis codes into over 530 clinical categories across 21 body systems.
AHRQ maintains the list of values at the following link; scroll to the “Downloading Information for the Tool and Documentation” portion of the page: https://www.hcupus.ahrq.gov/toolssoftware/ccsr/ccs_refined.jsp
CMS used the CCSR software v2021.2 to populate this field. CCSR uses the first three characters to indicate which of the 21 body systems applies. In the TAF the CCSR was mapped to the Primary or Principal Diagnosis Code (variable called DGNS_CD_1) The 21 systems are:
Abbreviation CCSR Body Systems
INF = Certain Infectious and Parasitic Diseases
NEO = Neoplasms
BLD = Diseases of the Blood and Blood Forming Organs and Certain Disorders Involving the Immune Mechanism
END = Endocrine, Nutritional and Metabolic Diseases
MBD = Mental, Behavioral and Neurodevelopmental Disorders
NVS = Diseases of the Nervous System
EYE = Diseases of the Eye and Adnexa
EAR = Diseases of the Ear and Mastoid Process
CIR = Diseases of the Circulatory System
RSP = Diseases of the Respiratory System
DIG = Diseases of the Digestive System
SKN = Diseases of the Skin and Subcutaneous Tissue
MUS = Diseases of the Musculoskeletal System and Connective Tissue
GEN = Diseases of the Genitourinary System
PRG = Pregnancy, Childbirth, and the Puerperium
PNL = Certain Conditions Originating in the Perinatal Period
MAL = Congenital Malformations, Deformations and Chromosomal Abnormalities
SYM = Symptoms, Signs and Abnormal Clinical and Laboratory Findings, Not Elsewhere Classified
INJ = Injury, Poisoning and Certain Other Consequences of External Causes
EXT = External Causes of Morbidity
FAC = Factors Influencing Health Status and Contact with Health Services
Values: Six-character alpha-numeric value; first three characters classify the body system (refer to COMMENT)
Ex - INF005 = Foodborne intoxications
Null/missing = source value is missing or unknown
Source: T-MSIS Analytic File (TAF) Claims