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  1. hcup-us.ahrq.gov/reports/statbriefs/sb122.jsp
    October 01, 2011 - For patients with a principal diagnosis of septicemia, many of the secondary diagnoses represent systemic … Twenty most common secondary diagnoses associated with a principal diagnosis of septicemia, 2009 … Secondary CCS diagnoses Stays with principal septicemia diagnosis Number of discharges Rate … Twenty most common principal diagnoses associated with a secondary diagnosis of septicemia, 2009 … Secondary CCS diagnoses Stays with secondary septicemia diagnosis Number of discharges Rate
  2. hcup-us.ahrq.gov/reports/factsandfigures/2008/definitions.jsp
    January 01, 2008 - DIAGNOSES 3. PROCEDURES 4. COSTS 5. … Diagnoses Principal diagnoses: The conditions established after study to be chiefly responsible … All-listed diagnoses: The principal diagnosis plus secondary conditions. … per population Discharges per population is the hospital discharge rate of a particular procedure, diagnosis … If two procedures appear to meet this definition, the procedure most related to the principal diagnosis
  3. hcup-us.ahrq.gov/reports/statbriefs/sb146.pdf
    March 01, 2012 - Distribution of aggregate hospital costs by diagnostic category,* 2010 Hospital costs by diagnosis … Aggregate costs for hospital stays by principal diagnosis, 1997 and 2010 Principal CCS diagnosis … All-listed diagnoses include the principal diagnosis plus these additional secondary conditions. … There are about 14,000 ICD-9-CM diagnosis codes. … "clinical grouper" makes it easier to quickly understand patterns of diagnoses.
  4. hcup-us.ahrq.gov/reports/statbriefs/sb81.pdf
    April 01, 2010 - CCS diagnoses and procedures for inpatient deaths. … The leading principal diagnosis for inpatient death cases was septicemia, the principal diagnosis in … Definitions Diagnoses, ICD-9-CM, and Clinical Classifications Software (CCS), and Diagnosis-Related … All-listed diagnoses include the principal diagnosis plus these additional secondary conditions. … There are about 13,600 ICD-9-CM diagnosis codes.
  5. Filespc5 1996 (pdf file)

    hcup-us.ahrq.gov/db/nation/nis/tools/stats/FILESPC5_1996.PDF
    January 01, 1996 - Full NIS, Inpatient Stay Core File C NIS96_C.ASC 6,542,069 65 438,318,623 6 Full NIS, Core File DX (diagnoses … Core File (A/B/C) N96S1ABC.ASC 654,207 225 148,504,989 Inpatient Stay Subsample 1 13 Core File DX (diagnoses … Core File (A/B/C) N96S2ABC.ASC 654,207 225 148,504,989 Inpatient Stay Subsample 2 13 Core File DX (diagnoses … Char 5 27 31 35 DXV1 I:Validity flag: principal diagnosis Num 3 32 36 37 HOSPID HCUP-3 hospital … effect on discharge date Num 3 43 48 49 MDC10 I:MDC, Version 10 Num 3 46 50 51 NDX I:Number of diagnoses
  6. Filespc4 1995 (pdf file)

    hcup-us.ahrq.gov/db/nation/nis/tools/stats/FILESPC4_1995.PDF
    January 01, 1995 - Full NIS, Inpatient Stay Core File C NIS95_C.ASC 6,714,935 65 449,900,645 6 Full NIS, Core File DX (diagnoses … Inpatient Stay Subsample 1 Core File (A/B/C) N95S1ABC.ASC 671,494 225 152,429,138 13 Core File DX (diagnoses … Inpatient Stay Subsample 2 Core File (A/B/C) N95S2ABC.ASC 671,493 225 152,428,911 13 Core File DX (diagnoses … Char 5 27 31 35 DXV1 I:Validity flag: principal diagnosis Num 3 32 36 37 HOSPID HCUP-3 hospital ID … Record Layout NIS, Release 45 HCUP-3 RECORD LAYOUT NIS 1995 INPATIENT STAY CORE FILE DX (DIAGNOSES
  7. Filespc3 1994 (pdf file)

    hcup-us.ahrq.gov/db/nation/nis/tools/stats/FILESPC3_1994.PDF
    January 01, 1994 - Full NIS, Inpatient Stay Core File C NIS94_C.ASC 6,385,011 65 427,795,737 6 Full NIS, Core File DX (diagnoses … Inpatient Stay Subsample 1 Core File (A/B/C) N94S1ABC.ASC 638,501 225 144,939,727 13 Core File DX (diagnoses … Inpatient Stay Subsample 2 Core File (A/B/C) N94S2ABC.ASC 638,501 225 144,939,727 13 Core File DX (diagnoses … Char 5 27 31 35 DXV1 I:Validity flag: principal diagnosis Num 3 32 36 37 HOSPID HCUP-3 hospital ID … Record Layout NIS, Release 35 HCUP-3 RECORD LAYOUT NIS 1994 INPATIENT STAY CORE FILE DX (DIAGNOSES
  8. Filespc2 1993 (pdf file)

    hcup-us.ahrq.gov/db/nation/nis/tools/stats/FILESPC2_1993.PDF
    January 01, 1993 - Full NIS, Inpatient Stay Core File C NIS93_C.ASC 6,538,976 52 353,104,704 6 Full NIS, Core File DX (diagnoses … Inpatient Stay Subsample #1 Core File (A/B/C) N93S1ABC.ASC 653,898 212 139,934,172 13 Core File DX (diagnoses … Inpatient Stay Subsample #2 Core File (A/B/C) N93S2ABC.ASC 653,897 212 139,933,958 13 Core File DX (diagnoses … Char 5 10 31 35 DXV1 I:Validity flag: principal diagnosis Num 3 11 36 37 HOSPID HCUP-3 hospital ID … Record Layout NIS, Release 25 HCUP-3 RECORD LAYOUT 1993 FULL NIS, INPATIENT STAY CORE FILE DX (DIAGNOSES
  9. hcup-us.ahrq.gov/reports/statbriefs/sb70.pdf
    April 01, 2009 - Third, we examine the serious secondary diagnoses for eating disorder inpatients. … and 24 percent had a diagnosis of bulimia nervosa. … had a diagnosis of psychogenic vomiting. … Definitions Diagnoses, ICD-9-CM, and Clinical Classifications Software (CCS) The principal diagnosis … There are about 13,600 ICD-9-CM diagnosis codes.
  10. hcup-us.ahrq.gov/reports/statbriefs/sb218-Malnutrition-Readmissions-2013.jsp
    December 01, 2016 - Table 4 focuses on principal diagnoses, which are more specific categories of conditions. … , but it did not rank in the top five diagnoses among patients without malnutrition. … There are approximately 14,000 ICD-9-CM diagnosis codes. … MDCs assign ICD-9-CM principal diagnosis codes to one of 25 general diagnosis categories. … Malnutrition diagnoses in hospitalized patients: United States, 2010.
  11. hcup-us.ahrq.gov/db/vars/drg10/nisnote.jsp
    September 01, 2008 - Only diagnoses and procedures that are valid on the date of discharge are used by the grouper for DRG … In the 1988-1995 data, the DRG grouper cannot handle more than 15 diagnoses and 15 procedures. … Therefore, the following rules were used when more than 15 diagnoses or 15 procedures were available: … Logically Mapping ICD-9-CM Codes for DRG Version 10 The diagnoses or procedures selected by the above … of discharge to be used for assigning the DRG; and some valid diagnoses (E-codes) are ruled by the
  12. Sb40 (pdf file)

    hcup-us.ahrq.gov/reports/statbriefs/sb40.pdf
    November 01, 2007 - Characteristics of these stays, including associated diagnoses, are compared to stays with no mention … diagnosis. … Definitions Diagnoses, ICD-9-CM, and Clinical Classifications Software (CCS) The principal diagnosis … " makes it easier to quickly understand patterns of diagnoses and procedures. … Principal diagnoses for hospital stays with a secondary diagnosis of depression, 2005* Percent
  13. hcup-us.ahrq.gov/reports/statbriefs/sb138.pdf
    March 01, 2012 - United Sta This Statis Utilization children a analyses (KID), wh such as p difference principal diagnoses … §Based on all-listed diagnoses. … Principal diagnosis for hospital stays with a secondary diagnosis of obesity, 2009 Principal diagnosis … Definitions Diagnoses, ICD-9-CM, and Clinical Classifications Software (CCS) The principal diagnosis … 4 Defined by Diagnosis Related Group (DRG) 619, 620, or 621. 6 CCS categorizes ICD-9-CM diagnoses
  14. hcup-us.ahrq.gov/reports/infographics/30dayreadmission.jsp
    June 01, 2013 - provide the most comprehensive national estimates of 30-day readmission rates for specific procedures and diagnoses … extremity 19% Heart valve procedures 19% Debridement of a wound, infection, or burn By Diagnosis … following an arrow into the revolving door) Nearly one in four patients with these common diagnoses … percentages) Medicare: 26% Medicaid: 22% Privately Insured: 17% Uninsured: 13% Diagnosis … 17% *Readmissions were for all causes and did not necessarily include the same procedure or diagnosis
  15. D Filesp 1997 (pdf file)

    hcup-us.ahrq.gov/db/nation/nis/tools/stats/D_FILESP_1997.PDF
    January 01, 1997 - Full NIS, Inpatient Stay Core File C NIS97_C.ASC 7,148,420 65 478,944,140 Full NIS, Core File DX (diagnoses … 256,036 Inpatient Stay Subsample 1 Core File (A/B/C) N97S1ABC.ASC 714,842 225 162,269,134 Core File DX (diagnoses … 21,603,855 Inpatient Stay Subsample 2 Core File (A/B/C) N97S2ABC.ASC 714,842 225 162,269,134 Core File DX (diagnoses
  16. hcup-us.ahrq.gov/reports/factsandfigures/2007/definitions.jsp
    January 01, 2007 - DIAGNOSES 3. PROCEDURES 4. COSTS 5. … Diagnoses Principal diagnoses: The conditions established after study to be chiefly responsible … All-listed diagnoses: The principal diagnosis plus secondary conditions. … population Discharges per 1,000 population is the hospital discharge rate of a particular procedure, diagnosis … If two procedures appear to meet this definition, the procedure most related to the principal diagnosis
  17. hcup-us.ahrq.gov/reports/statbriefs/sb184-Hospital-Stays-Medicaid-Super-Utilizers-2012.jsp
    November 01, 2014 - Top 10 principal diagnoses for super-utilizers with Medicaid coverage, 2012 Rank Principal diagnosis … Definitions Diagnoses, ICD-9-CM, and Clinical Classifications Software (CCS) The principal diagnosis … the principal diagnosis. … There are approximately 14,000 ICD-9-CM diagnosis codes. … makes it easier to quickly understand patterns of diagnoses.
  18. hcup-us.ahrq.gov/db/nation/neds/NEDSChangesBeginningDataYr2016.pdf
    September 01, 2021 - characteristics, hospital characteristics, patient characteristics, and the nature of visits (e.g., common diagnoses … -10-CM diagnoses and ICD-10-PCS procedures, that is generally derived from the Agency for Healthcare … the data elements derived from the Clinical Classifications Software Refined (CCSR) for ICD-10-CM diagnoses … one ICD- 10-CM diagnosis on the record is included in CCSR aaannn Diagnosis and Procedure Groups … for ICD-10- CM diagnoses Diagnosis and Procedure Groups 2018 I10_INJURY Injury ICD-10-CM diagnosis
  19. hcup-us.ahrq.gov/db/vars/drg24/nisnote.jsp
    September 01, 2008 - a maximum of 50 diagnosis and 50 procedure codes. … Only diagnoses and procedure that are valid on the date of discharge are used by the grouper for DRG … Logically Mapping ICD-9-CM Codes for DRG Version 24 The diagnoses or procedures selected by the above … Different Definitions of Diagnosis and Procedure Validity HCUP validation of diagnosis and procedure … of discharge to be used for assigning the DRG; and some valid diagnoses (E-codes) are ruled by the
  20. hcup-us.ahrq.gov/db/vars/drg24/kidnote.jsp
    September 01, 2008 - a maximum of 50 diagnosis and 50 procedure codes. … Only diagnoses and procedure that are valid on the date of discharge are used by the grouper for DRG … Logically Mapping ICD-9-CM Codes for DRG Version 24 The diagnoses or procedures selected by the above … Different Definitions of Diagnosis and Procedure Validity HCUP validation of diagnosis and procedure … of discharge to be used for assigning the DRG; and some valid diagnoses (E-codes) are ruled by the

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