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hcup-us.ahrq.gov/sasdoverview.jsp
July 01, 2025 - Because of the transition to ICD-10-CM/PCS on October 1, 2015, the 2015 SASD are split into two parts
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hcup-us.ahrq.gov/db/state/sasddist/sasddist_filecompmo.jsp
June 01, 2024 - A new definition for place of service as of October 1 ,2015 with the transition to ICD-10-CM/PCS is not
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hcup-us.ahrq.gov/db/state/sasddist/sasddist_filecompco.jsp
August 01, 2006 - change in definition occurred because of hospitals only submitting CPT procedures in anticipation of the transition
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hcup-us.ahrq.gov/db/state/2016HCUPStateDatabases09182019.pdf
September 18, 2019 - both ICD-9-CM and
ICD-10-CM/PCS codes), as well as reporting trends that span the October 1, 2015 transition
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hcup-us.ahrq.gov/datainnovations/nj.jsp
October 01, 2010 - Enhanced State Data for Analysis and Tracking of Comparative Effectiveness Impact
An official website of the Department of Health & Human Services
Search All AHRQ Websites
Careers
Contact Us…
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hcup-us.ahrq.gov/faststats/landing.jsp
December 01, 2025 - AHRQ has transitioned HCUP Fast Stats to the AHRQ Data Tools site where the most recent Fast Stats statistics can now be found.
HCUP Fast Stats
State Trends in Hospital Use by Payer
Inpatient Stay Trends by Payer (Updated Dec. 2021)
Emergency Department Visit Trends by Payer (Updated Dec. …
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hcup-us.ahrq.gov/reports/ataglance/HCUPanalysisCdiff2022.pdf
December 08, 2022 - 7.2 7.3 7.7 8.4 8.9 7.8 7.6 6.9 6.3
Notes: National rates are not reported for 2015 because of the transition … 13.8 13.9 14.2 13.6 12.3 11.5 9.9 8.9
Note: National rates are not reported for 2015 because of the transition
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hcup-us.ahrq.gov/db/nation/nis/NIS_Introduction_2015.jsp
January 01, 2015 - Because of the transition to ICD-10-CM/PCS 1 on October 1, 2015, the file structure and the location … page provides general guidance and forewarning to users analyzing outcomes that may be affected by the transition … page provides general guidance and forewarning to users analyzing outcomes that may be affected by the transition … page provides general guidance and forewarning to users analyzing outcomes that may be affected by the transition … Return to Introduction
APPENDIX III: DATA ELEMENTS
Because of the transition to ICD-10-CM/PCS
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hcup-us.ahrq.gov/kidoverview.jsp
July 01, 2025 - The KID was not produced for 2015 because of the transition from ICD-9-CM to ICD-10-CM/PCS coding.
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hcup-us.ahrq.gov/nedsoverview.jsp
July 01, 2025 - This transition had a direct impact on the reporting of medical services in the NEDS:
Starting
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hcup-us.ahrq.gov/reports/methods/2008_02.pdf
January 01, 2008 - Microsoft Word - PSI report-revised to AHRQ_031208_rev.doc
HCUP Methods Series
kbr33831
Contact Information:
Healthcare Cost and Utilization Project (HCUP)
Agency for Healthcare Research and Quality
540 Gaither Road
Rockville, MD 20850
http://www.hcup-us.ahrq.gov
For Technical Assistan…
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hcup-us.ahrq.gov/db/state/sedddist/Introduction_to_SEDD.pdf
January 01, 2025 - Because of the transition to ICD-10-
CM/PCS1 on October 1, 2015, the 2015 SEDD are split into two parts … 2015 files have been separated into two sets of files based on the discharge date because of the
transition … guidance and forewarning to users
interested in analyzing outcomes that are potentially impacted by the transition
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hcup-us.ahrq.gov/reports/statbriefs/sb263-Suicide-ED-Visits-2008-2017.pdf
January 01, 2017 - Clinical
Modification (ICD-10-CM) coding systems that affect the identification of cases, including a transition … It is expected that hospitals required a transition period in which to become more familiar
with the … The dashed trend line between 2016 and 2017 highlights an initial transition period in the uptake of
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hcup-us.ahrq.gov/reports/statbriefs/sb271-Stimulant-Opioid-Hospitalizations-2012-2018.pdf
January 01, 2018 - In addition, the identification of cases may be affected by the transition period itself, in which there … It is expected that hospitals required a transition period to
become more familiar with the ICD-10-CM … The transition period for the uptake of the ICD-
10-CM coding period is represented as a dashed line,
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hcup-us.ahrq.gov/db/state/sedddist/SEDD_Introduction.jsp
June 01, 2022 - Because of the transition to ICD-10-CM/PCS 1 on October 1, 2015, the 2015 SEDD are split into two parts … the 2015 files have been separated into two sets of files based on the discharge date because of the transition … guidance and forewarning to users interested in analyzing outcomes that are potentially impacted by the transition
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hcup-us.ahrq.gov/datainnovations/clinicalcontentenhancementtoolkit/hi26.pdf
September 27, 2012 - Laboratory Data
Four hospitals were unable to provide blood gas data for specific time periods
due to the transition
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hcup-us.ahrq.gov/datainnovations/ICD10Imp_Romano_NAHDO_October2016.pdf
October 27, 2016 - Determine Intent of Code Transition
– Maintain intent (legacy specification)
– Maintain intent, with
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hcup-us.ahrq.gov/db/nation/neds/nedsdde.jsp
March 01, 2024 - Because of the transition to ICD-10-CM/PCS on October 1, 2015, data elements related to diagnoses and
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hcup-us.ahrq.gov/db/state/sasddist/Introduction_to_SASD.pdf
January 01, 2025 - Because of the transition to ICD-10-
CM/PCS1 on October 1, 2015, the 2015 SASD are split into two parts … 2015 files have been separated into two sets of files based on the discharge date because of the
transition … guidance and forewarning to users
interested in analyzing outcomes that are potentially impacted by the transition
-
hcup-us.ahrq.gov/db/state/siddist/SID_Introduction.jsp
June 01, 2022 - Because of the transition to ICD-10-CM/PCS 1 on October 1, 2015, the 2015 SID are split into two parts … the 2015 files have been separated into two sets of files based on the discharge date because of the transition … guidance and forewarning to users interested in analyzing outcomes that are potentially impacted by the transition