-
hcup-us.ahrq.gov/db/nation/nis/tools/stats/NIS_1988_SummaryStats.PDF
March 15, 2005 - : diagnosis 4 2040610 3225146 0.00 1.00 0.00 0.03
DXV5 : I:Validity flag: diagnosis 5 1416850 3848906 … I:Validity flag: diagnosis 7 244686 5021070 0.00 1.00 0.00 0.04
DXV8 : I:Validity flag: diagnosis 8 … : diagnosis 11 19082 5246674 0.00 0.00 0.00 0.00
DXV12 : I:Validity flag: diagnosis 12 12775 5252981 … I:Validity flag: diagnosis 14 5863 5259893 0.00 0.00 0.00 0.00
DXV15 : I:Validity flag: diagnosis 15 … 0 0.00 24.00 9.73 5.41
MDC10 : I:MDC, Version 10 5265756 0 0.00 25.00 9.76 5.49
NDX : I:Number of diagnoses
-
hcup-us.ahrq.gov/db/nation/nis/tools/stats/NIS_1997_SummaryStats_N10Core2.PDF
January 01, 1997 - : I:DRG grouper version used on disch date 714842 0 14.00 15.00 14.25 0.43
DSNDX : I:Max number of diagnoses … diagnosis 7 189663 525179 0.00 1.00 0.00 0.03
DXV8 : I:Validity flag: diagnosis 8 140496 574346 0.00 … flag: diagnosis 10 46086 668756 0.00 1.00 0.00 0.02
DXV11 : I:Validity flag: diagnosis 11 17488 697354 … I:Validity flag: diagnosis 13 8755 706087 0.00 0.00 0.00 0.00
DXV14 : I:Validity flag: diagnosis 14 … 0 0.00 25.00 9.71 5.64
MDC10 : I:MDC, Version 10 714842 0 0.00 25.00 9.71 5.65
NDX : I:Number of diagnoses
-
hcup-us.ahrq.gov/db/nation/nis/tools/stats/NIS_1997_SummaryStats_N10Core1.PDF
January 01, 1997 - : I:DRG grouper version used on disch date 714842 0 14.00 15.00 14.25 0.43
DSNDX : I:Max number of diagnoses … diagnosis 7 189804 525038 0.00 1.00 0.00 0.03
DXV8 : I:Validity flag: diagnosis 8 140944 573898 0.00 … flag: diagnosis 10 46152 668690 0.00 1.00 0.00 0.03
DXV11 : I:Validity flag: diagnosis 11 17827 697015 … I:Validity flag: diagnosis 13 8945 705897 0.00 0.00 0.00 0.00
DXV14 : I:Validity flag: diagnosis 14 … 0 0.00 25.00 9.71 5.64
MDC10 : I:MDC, Version 10 714842 0 0.00 25.00 9.71 5.64
NDX : I:Number of diagnoses
-
hcup-us.ahrq.gov/db/nation/nis/tools/stats/NIS_1995_SummaryStats_N10Core2.PDF
January 01, 1995 - : I:DRG grouper version used on disch date 671493 0 12.00 13.00 12.25 0.43
DSNDX : I:Max number of diagnoses … 0 0.00 25.00 9.83 5.68
MDC10 : I:MDC, Version 10 671493 0 0.00 25.00 9.83 5.68
NDX : I:Number of diagnoses … DXV7 : I:Validity flag: diagnosis 7 7081 664412 0.00 1.00 0.00 0.03
DXV8 : I:Validity flag: diagnosis … DXV10 : I:Validity flag: diagnosis 10 2266 669227 0.00 0.00 0.00 0.00
DXV11 : I:Validity flag: diagnosis … diagnosis 14 691 670802 0.00 0.00 0.00 0.00
DXV15 : I:Validity flag: diagnosis 15 528 670965 0.00 0.00
-
hcup-us.ahrq.gov/db/nation/nis/tools/stats/NIS_1994_SummaryStats_N10Core2.PDF
January 01, 1994 - : I:DRG grouper version used on disch date 638501 0 11.00 12.00 11.25 0.43
DSNDX : I:Max number of diagnoses … 0 0.00 25.00 9.86 5.64
MDC10 : I:MDC, Version 10 638501 0 0.00 25.00 9.86 5.64
NDX : I:Number of diagnoses … DXV7 : I:Validity flag: diagnosis 7 5311 633190 0.00 0.00 0.00 0.00
DXV8 : I:Validity flag: diagnosis … DXV10 : I:Validity flag: diagnosis 10 2028 636473 0.00 0.00 0.00 0.00
DXV11 : I:Validity flag: diagnosis … diagnosis 14 531 637970 0.00 0.00 0.00 0.00
DXV15 : I:Validity flag: diagnosis 15 402 638099 0.00 0.00
-
hcup-us.ahrq.gov/db/nation/nis/tools/stats/NIS_1993_SummaryStats_N10Core2.PDF
January 01, 1993 - : I:DRG grouper version used on disch date 653897 0 10.00 11.00 10.25 0.43
DSNDX : I:Max number of diagnoses … 0 0.00 25.00 9.82 5.61
MDC10 : I:MDC, Version 10 653897 0 0.00 25.00 9.82 5.61
NDX : I:Number of diagnoses … DXV7 : I:Validity flag: diagnosis 7 5016 648881 0.00 0.00 0.00 0.00
DXV8 : I:Validity flag: diagnosis … DXV10 : I:Validity flag: diagnosis 10 1796 652101 0.00 0.00 0.00 0.00
DXV11 : I:Validity flag: diagnosis … diagnosis 14 419 653478 0.00 0.00 0.00 0.00
DXV15 : I:Validity flag: diagnosis 15 305 653592 0.00 0.00
-
hcup-us.ahrq.gov/db/nation/nis/tools/stats/NIS_1991_SummaryStats.PDF
January 01, 1991 - : diagnosis 4 2816002 3340186 0.00 1.00 0.00 0.02
DXV5 : I:Validity flag: diagnosis 5 2044426 4111762 … I:Validity flag: diagnosis 7 251625 5904563 0.00 1.00 0.00 0.01
DXV8 : I:Validity flag: diagnosis 8 … : diagnosis 11 25369 6130819 0.00 0.00 0.00 0.00
DXV12 : I:Validity flag: diagnosis 12 17314 6138874 … : I:Validity flag: diagnosis 14 7663 6148525 0.00 0.00 0.00 0.00
DXV15 : I:Validity flag: diagnosis … 0 0.00 25.00 9.79 5.52
MDC10 : I:MDC, Version 10 6156188 0 0.00 25.00 9.80 5.52
NDX : I:Number of diagnoses
-
hcup-us.ahrq.gov/db/nation/nis/tools/stats/NIS_1991_SummaryStats_N10Core1.PDF
January 01, 1991 - DRGVER : I:DRG grouper version used on disch date 615620 0 7.00 9.00 7.50 0.87
DSNDX : I:Max number of diagnoses … diagnosis 7 25154 590466 0.00 1.00 0.00 0.01
DXV8 : I:Validity flag: diagnosis 8 17376 598244 0.00 0.00 … flag: diagnosis 10 4203 611417 0.00 0.00 0.00 0.00
DXV11 : I:Validity flag: diagnosis 11 2524 613096 … I:Validity flag: diagnosis 13 1123 614497 0.00 0.00 0.00 0.00
DXV14 : I:Validity flag: diagnosis 14 … 0 0.00 25.00 9.81 5.53
MDC10 : I:MDC, Version 10 615620 0 0.00 25.00 9.81 5.53
NDX : I:Number of diagnoses
-
hcup-us.ahrq.gov/db/nation/nis/tools/stats/NIS_1992_SummaryStats.PDF
January 01, 1992 - : I:DRG grouper version used on disch date 6195744 0 9.00 10.00 9.25 0.43
DSNDX : I:Max number of diagnoses … : diagnosis 4 2972384 3223360 0.00 1.00 0.00 0.02
DXV5 : I:Validity flag: diagnosis 5 2190221 4005523 … I:Validity flag: diagnosis 7 607920 5587824 0.00 1.00 0.00 0.00
DXV8 : I:Validity flag: diagnosis 8 … : diagnosis 11 33232 6162512 0.00 0.00 0.00 0.00
DXV12 : I:Validity flag: diagnosis 12 23159 6172585 … : I:Validity flag: diagnosis 14 10379 6185365 0.00 0.00 0.00 0.00
DXV15 : I:Validity flag: diagnosis
-
hcup-us.ahrq.gov/db/nation/nis/tools/stats/NIS_1995_SummaryStats_N10Core1.PDF
January 01, 1995 - : I:DRG grouper version used on disch date 671494 0 12.00 13.00 12.25 0.43
DSNDX : I:Max number of diagnoses … 0 0.00 25.00 9.81 5.69
MDC10 : I:MDC, Version 10 671494 0 0.00 25.00 9.81 5.69
NDX : I:Number of diagnoses … DXV7 : I:Validity flag: diagnosis 7 7042 664452 0.00 1.00 0.00 0.03
DXV8 : I:Validity flag: diagnosis … DXV10 : I:Validity flag: diagnosis 10 2257 669237 0.00 0.00 0.00 0.00
DXV11 : I:Validity flag: diagnosis … diagnosis 14 710 670784 0.00 0.00 0.00 0.00
DXV15 : I:Validity flag: diagnosis 15 517 670977 0.00 0.00
-
hcup-us.ahrq.gov/db/nation/nis/tools/stats/NIS_1992_SummaryStats_N10Core1.PDF
January 01, 1992 - DRGVER : I:DRG grouper version used on disch date 619574 0 9.00 10.00 9.25 0.43
DSNDX : I:Max number of diagnoses … diagnosis 7 60918 558656 0.00 0.00 0.00 0.00
DXV8 : I:Validity flag: diagnosis 8 43127 576447 0.00 0.00 … flag: diagnosis 10 15319 604255 0.00 0.00 0.00 0.00
DXV11 : I:Validity flag: diagnosis 11 3353 616221 … I:Validity flag: diagnosis 13 1555 618019 0.00 0.00 0.00 0.00
DXV14 : I:Validity flag: diagnosis 14 … 0 0.00 25.00 9.83 5.53
MDC10 : I:MDC, Version 10 619574 0 0.00 25.00 9.84 5.52
NDX : I:Number of diagnoses
-
hcup-us.ahrq.gov/db/nation/nis/tools/stats/NIS_1992_SummaryStats_N10Core2.PDF
January 01, 1992 - DRGVER : I:DRG grouper version used on disch date 619574 0 9.00 10.00 9.25 0.43
DSNDX : I:Max number of diagnoses … diagnosis 7 60509 559065 0.00 0.00 0.00 0.00
DXV8 : I:Validity flag: diagnosis 8 42909 576665 0.00 0.00 … flag: diagnosis 10 15077 604497 0.00 0.00 0.00 0.00
DXV11 : I:Validity flag: diagnosis 11 3283 616291 … I:Validity flag: diagnosis 13 1554 618020 0.00 0.00 0.00 0.00
DXV14 : I:Validity flag: diagnosis 14 … 0 0.00 25.00 9.83 5.53
MDC10 : I:MDC, Version 10 619574 0 0.00 25.00 9.83 5.53
NDX : I:Number of diagnoses
-
hcup-us.ahrq.gov/db/nation/nis/tools/stats/NIS_1996_SummaryStats_N10Core1.PDF
January 01, 1996 - : I:DRG grouper version used on disch date 654207 0 13.00 14.00 13.25 0.43
DSNDX : I:Max number of diagnoses … diagnosis 7 163552 490655 0.00 1.00 0.00 0.01
DXV8 : I:Validity flag: diagnosis 8 120262 533945 0.00 … flag: diagnosis 10 39670 614537 0.00 1.00 0.00 0.01
DXV11 : I:Validity flag: diagnosis 11 14753 639454 … I:Validity flag: diagnosis 13 7257 646950 0.00 0.00 0.00 0.00
DXV14 : I:Validity flag: diagnosis 14 … 0 0.00 25.00 9.79 5.66
MDC10 : I:MDC, Version 10 654207 0 0.00 25.00 9.79 5.66
NDX : I:Number of diagnoses
-
hcup-us.ahrq.gov/db/nation/nis/tools/stats/NIS_1996_SummaryStats_N10Core2.PDF
January 01, 1996 - : I:DRG grouper version used on disch date 654207 0 13.00 14.00 13.25 0.43
DSNDX : I:Max number of diagnoses … DXV3 : I:Validity flag: diagnosis 3 464816 189391 0.00 1.00 0.00 0.01
DXV4 : I:Validity flag: diagnosis … diagnosis 7 164077 490130 0.00 1.00 0.00 0.01
DXV8 : I:Validity flag: diagnosis 8 120789 533418 0.00 … I:Validity flag: diagnosis 13 7258 646949 0.00 0.00 0.00 0.00
DXV14 : I:Validity flag: diagnosis 14 … 0 0.00 25.00 9.80 5.68
MDC10 : I:MDC, Version 10 654207 0 0.00 25.00 9.80 5.68
NDX : I:Number of diagnoses
-
hcup-us.ahrq.gov/db/nation/nis/tools/stats/NIS_1994_SummaryStats_N10Core1.PDF
January 01, 1994 - : I:DRG grouper version used on disch date 638501 0 11.00 12.00 11.25 0.43
DSNDX : I:Max number of diagnoses … 0 0.00 25.00 9.86 5.63
MDC10 : I:MDC, Version 10 638501 0 0.00 25.00 9.86 5.63
NDX : I:Number of diagnoses … DXV7 : I:Validity flag: diagnosis 7 5326 633175 0.00 0.00 0.00 0.00
DXV8 : I:Validity flag: diagnosis … DXV10 : I:Validity flag: diagnosis 10 2058 636443 0.00 0.00 0.00 0.00
DXV11 : I:Validity flag: diagnosis … diagnosis 14 512 637989 0.00 0.00 0.00 0.00
DXV15 : I:Validity flag: diagnosis 15 377 638124 0.00 0.00
-
hcup-us.ahrq.gov/db/nation/nis/tools/stats/NIS_1993_SummaryStats_N10Core1.PDF
January 01, 1993 - : I:DRG grouper version used on disch date 653898 0 10.00 11.00 10.25 0.43
DSNDX : I:Max number of diagnoses … 0 0.00 25.00 9.81 5.60
MDC10 : I:MDC, Version 10 653898 0 0.00 25.00 9.81 5.60
NDX : I:Number of diagnoses … DXV7 : I:Validity flag: diagnosis 7 5021 648877 0.00 0.00 0.00 0.00
DXV8 : I:Validity flag: diagnosis … DXV10 : I:Validity flag: diagnosis 10 1746 652152 0.00 0.00 0.00 0.00
DXV11 : I:Validity flag: diagnosis … diagnosis 14 432 653466 0.00 0.00 0.00 0.00
DXV15 : I:Validity flag: diagnosis 15 312 653586 0.00 0.00
-
hcup-us.ahrq.gov/db/nation/nis/tools/stats/NIS_1988_SummaryStats_N10Core2.PDF
July 07, 2005 - DRGVER : I:DRG grouper version used on disch date 526575 0 4.00 5.00 4.25 0.43
DSNDX : I:Max number of diagnoses … diagnosis 7 24760 501815 0.00 1.00 0.00 0.04
DXV8 : I:Validity flag: diagnosis 8 16656 509919 0.00 1.00 … flag: diagnosis 10 3211 523364 0.00 0.00 0.00 0.00
DXV11 : I:Validity flag: diagnosis 11 1912 524663 … I:Validity flag: diagnosis 13 792 525783 0.00 0.00 0.00 0.00
DXV14 : I:Validity flag: diagnosis 14 575 … 0 1.00 24.00 9.73 5.42
MDC10 : I:MDC, Version 10 526575 0 0.00 25.00 9.76 5.49
NDX : I:Number of diagnoses
-
hcup-us.ahrq.gov/db/nation/nis/tools/stats/NIS_1988_SummaryStats_N10Core1.PDF
July 07, 2005 - DRGVER : I:DRG grouper version used on disch date 526576 0 4.00 5.00 4.25 0.43
DSNDX : I:Max number of diagnoses … diagnosis 7 24434 502142 0.00 1.00 0.00 0.04
DXV8 : I:Validity flag: diagnosis 8 16587 509989 0.00 1.00 … flag: diagnosis 10 3100 523476 0.00 0.00 0.00 0.00
DXV11 : I:Validity flag: diagnosis 11 1862 524714 … I:Validity flag: diagnosis 13 802 525774 0.00 0.00 0.00 0.00
DXV14 : I:Validity flag: diagnosis 14 609 … 0 1.00 24.00 9.72 5.41
MDC10 : I:MDC, Version 10 526576 0 0.00 25.00 9.75 5.49
NDX : I:Number of diagnoses
-
hcup-us.ahrq.gov/reports/statbriefs/sb197-Characteristics-Quality-Hospitals-Health-Systems.jsp
December 01, 2015 - 10,700
Average length of stay, days
4.7
4.6
Abbreviation: APR-DRG, All Patient Refined Diagnosis … system hospitals, 29.2 percent of stays involved high patient severity of illness (All Patient Refined Diagnosis … Risk-adjustment variables included patient sex and age, Major Diagnostic Categories (MDC), All Payer Refined Diagnosis … The IQI approach identified the admissions for the six diagnoses (on the basis of International Classification … of Diseases, Ninth Revision, Clinical Modification [ICD-9-CM] principal diagnosis codes).
-
hcup-us.ahrq.gov/reports/methods/2015_01.pdf
January 01, 2015 - The missing values for MDC and DRG can result from missing or invalid principal
diagnoses, wrong sex … for the diagnosis or procedure, and so on. … The California missing values should not be an issue for nonsensitive diagnoses and
conditions. … 1 0.01
DXPOA1 Diagnosis 1, present on admission indicator 0.37
DX_ADMITTING Admitting diagnosis … analysts are frequently
interested in making inferences about groups of patients defined by specific diagnoses