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  1. hcup-us.ahrq.gov/db/nation/neds/NEDS_Introduction_2012.jsp
    January 01, 2012 - ICD-9-CM Diagnosis and Procedure Codes ICD-9-CM diagnosis and procedure codes provide valuable insights … ICD-9-CM codes change every October as new codes are introduced and some codes are retired. … It is essential to check all ICD-9-CM codes used for analysis to ensure that the codes are in effect … It is essential to check all CPT procedure codes used for analysis to ensure that the codes are in effect … on the reporting of external cause of injury codes (E codes): At least one Partner
  2. hcup-us.ahrq.gov/db/nation/nass/NASS_Introduction_2016.pdf
    January 01, 2016 - In what follows, HCPCS Level I codes will be called CPT codes for brevity. … procedure codes … ICD-10-CM codes change every October as new codes are introduced and some codes are retired. … • The database includes only HCPCS Level I or CPT codes. HCPCS Level II codes are excluded. … , this procedure information is limited to Level I HCPCS codes (i.e., CPT codes).
  3. hcup-us.ahrq.gov/db/nation/nass/2017_NASS_Introduction.pdf
    January 01, 2017 - In what follows, HCPCS Level I codes will be called CPT codes for brevity. … procedure codes … ICD-10-CM codes change every October as new codes are introduced and some codes are retired. … • The database includes only HCPCS Level I or CPT codes. HCPCS Level II codes are excluded. … , this procedure information is limited to Level I HCPCS codes (i.e., CPT codes).
  4. hcup-us.ahrq.gov/db/nation/nass/nassknowndataissue_2021.jsp
    January 01, 2021 - for ICD-9-CM Elixhauser Comorbidity Software for ICD-9-CM Utilization Flags for Revenue Center Codes … Data Issue The 2021 NASS includes a maximum of 25 diagnosis codes. … assignment of comorbidity and diagnosis CCSR data elements used only 20 of the possible 25 diagnosis codes … of the Affected Records There are 113,560 records in the 2021 NASS with more than 20 diagnosis codes
  5. hcup-us.ahrq.gov/db/nation/neds/NEDS2014Introduction.pdf
    December 12, 2016 - ICD-9-CM codes change every October as new codes are introduced and some codes are retired. … It is essential to check all ICD-9-CM codes used for analysis to ensure that the codes are in effect … ICD-9-CM and CPT Procedure Codes The type of procedure codes (ICD-9-CM or CPT) that is included on NEDS … ICD-9-CM procedure codes change every October as new codes are introduced and some codes are retired … It is essential to check all procedure codes used for analysis to ensure that the codes are in effect
  6. hcup-us.ahrq.gov/reports/statbriefs/sb55.pdf
    July 01, 2008 - (E codes). … (E codes). … (E codes). … (E codes). … (E codes).
  7. hcup-us.ahrq.gov/db/state/sasddist/sasddist_filecompia.jsp
    March 01, 2007 - for ICD-9-CM Elixhauser Comorbidity Software for ICD-9-CM Utilization Flags for Revenue Center Codes … IHA uses Current Procedural Terminology (CPT®) procedure codes and revenue center codes to identify the … in chemical dependency or psychiatric care units of the hospital: ICD-10-CM Principal Diagnosis Codes … conditions Beginning in data year 2003, HIV patients were defined by: ICD-9-CM diagnosis codes … Hospital Association added the following to the definition of HIV patients: ICD-10-CM diagnosis codes
  8. hcup-us.ahrq.gov/db/nation/nrd/Introduction_NRD_2010-2015.pdf
    January 01, 2015 - and the last three months contain ICD-10-CM/PCS codes. … fourth quarter of data (with ICD-10- CM/PCS codes). … codes on inpatient discharges prior to October 1, 2015. … ICD-9-CM and ICD-10-CM/PCS codes change every October as new codes are introduced and some codes are … through September (with ICD-9-CM codes).
  9. Appendix A (pdf file)

    hcup-us.ahrq.gov/reports/natstats/his95/appenda.pdf
    September 01, 1998 - with all coding changes valid from January 1980 through September 19981 ) Diagnosis category ICD-9-CM codes … with all coding changes valid from January 1980 through September 19981 ) Diagnosis category ICD-9-CM codes … with all coding changes valid from January 1980 through September 19981 ) Diagnosis category ICD-9-CM codes … with all coding changes valid from January 1980 through September 19981 ) Diagnosis category ICD-9-CM codes … with all coding changes valid from January 1980 through September 19981 ) Diagnosis category ICD-9-CM codes
  10. hcup-us.ahrq.gov/db/state/sedddist/sedddist_filecompsc.jsp
    March 01, 2007 - for ICD-9-CM Elixhauser Comorbidity Software for ICD-9-CM Utilization Flags for Revenue Center Codes … Emergency department (ED) records are defined by the presence of revenue codes 045X. … Beginning October 1, 2015, South Carolina no longer removes from the data any diagnosis codes indicating … From 2003 through September 30, 2015, these diagnosis codes were removed from the data files. … identified by South Carolina as ED are included in the SEDD (HCUP data element STATE_ED=1 based on revenue codes
  11. hcup-us.ahrq.gov/db/vars/cmr_aaa/nisnote.jsp
    September 01, 2008 - for ICD-9-CM Elixhauser Comorbidity Software for ICD-9-CM Utilization Flags for Revenue Center Codes … Data Elements   CMR_aaa - Elixhauser Comorbidity Measure Refined for ICD-10-CM diagnosis codes … Some ICD-10-CM diagnosis codes are exempt from POA reporting because they are for circumstances regarding … When exempt codes are included in clinical criteria for a comorbidity measure that uses POA, the POA … Description Value Value Description CMR_aaa Elixhauser Comorbidity Measure Refined for ICD-10-CM diagnosis codes
  12. hcup-us.ahrq.gov/db/vars/cmr_aaa/nrdnote.jsp
    August 01, 2015 - for ICD-9-CM Elixhauser Comorbidity Software for ICD-9-CM Utilization Flags for Revenue Center Codes … Elements   CMR_aaa - Elixhauser Comorbidity Measure Refined for ICD-10-CM diagnosis codes … Some ICD-10-CM diagnosis codes are exempt from POA reporting because they are for circumstances regarding … When exempt codes are included in clinical criteria for a comorbidity measure that uses POA, the POA … Description Value Value Description CMR_aaa Elixhauser Comorbidity Measure Refined for ICD-10-CM diagnosis codes
  13. hcup-us.ahrq.gov/db/vars/cmr_aaa/nedsnote.jsp
    May 01, 2015 - for ICD-9-CM Elixhauser Comorbidity Software for ICD-9-CM Utilization Flags for Revenue Center Codes … Data Elements   CMR_aaa - Elixhauser Comorbidity Measure Refined for ICD-10-CM diagnosis codes … Some ICD-10-CM diagnosis codes are exempt from POA reporting because they are for circumstances regarding … When exempt codes are included in clinical criteria for a comorbidity measure that uses POA, the POA … Description Value Value Description CMR_aaa Elixhauser Comorbidity Measure Refined for ICD-10-CM diagnosis codes
  14. hcup-us.ahrq.gov/reports/methods/2004_6_appendix_E.pdf
    January 01, 2004 - of Inpatient Injury Discharges with an Injury E Code Encourage E Code Submission No policy on E Codes … Figure 10: States without Mandates/Regulations for the Submission of E Codes on Injury Records that … Edit Check No Edit Check Not Available Figure 11: States that do and do not Edit Check or Verify E Codes … Without Mandates Figure 20a: States with and without Mandates/Regulations for the Submission of E Codes … of E Codes on Medical Misadventure/Adverse Reaction Records, HCUP State Inpatient Databases 0% 10%
  15. Table 2 (pdf file)

    hcup-us.ahrq.gov/toolssoftware/comorbidity/Table2-FY12-V3_7.pdf
    February 01, 2017 - Definitions of Comorbidities, Elixhauser Comorbidity Software version 3.7/ 2012 ICD9 CM Diagnosis Codes … Definitions of Comorbidities, Elixhauser Comorbidity Software version 3.7/ 2012 ICD9 CM Diagnosis Codes … 2 The comorbidity category Hypertension shares diagnosis codes … Definitions of Comorbidities, Elixhauser Comorbidity Software version 3.7/ 2012 ICD9 CM Diagnosis Codes … Definitions of Comorbidities, Elixhauser Comorbidity Software version 3.7/ 2012 ICD9 CM Diagnosis Codes
  16. hcup-us.ahrq.gov/db/state/sedddist/sedddist_filecompia.jsp
    June 01, 2007 - for ICD-9-CM Elixhauser Comorbidity Software for ICD-9-CM Utilization Flags for Revenue Center Codes … Alcohol/drug use and alcohol/drug induced organic mental disorders ICD-9-CM Principal Diagnosis Codes … in chemical dependency or psychiatric care units of the hospital: ICD-10-CM Principal Diagnosis Codes … conditions Beginning in data year 2003, HIV patients were defined by: ICD-9-CM diagnosis codes … Hospital Association added the following to the definition of HIV patients: ICD-10-CM diagnosis codes
  17. hcup-us.ahrq.gov/db/state/sasddist/sasddist_filecompco.jsp
    August 01, 2006 - for ICD-9-CM Elixhauser Comorbidity Software for ICD-9-CM Utilization Flags for Revenue Center Codes … Beginning in 2017, CHA defines an ambulatory surgery record based on revenue codes. … In 2015, CHA's definition included CPT procedure codes under 69999. … 9-CM and Current Procedural Terminology (CPT®) to code procedures, but hospitals only sent ICD-9-CM codes … meeting their definition of ambulatory surgery and excluded CPT codes for procedures such as blood draw
  18. hcup-us.ahrq.gov/db/vars/drg/kidnote.jsp
    September 01, 2008 - for ICD-9-CM Elixhauser Comorbidity Software for ICD-9-CM Utilization Flags for Revenue Center Codes … based on International Classification of Diseases, Ninth Revision, Clinical Modification (ICD-9-CM) codes … the first 14 valid (by HCUP standards) additional diagnosis or procedure codes are passed to the HCFA … The DRG Grouper rules differ in two ways: diagnosis and procedure codes must be valid on the date … of discharge to be used for assigning the DRG; and some valid diagnoses (E-codes) are ruled by the
  19. hcup-us.ahrq.gov/reports/statbriefs/sb279-Diabetes-Inpatient-Stays-2018.pdf
    January 01, 2018 - for both type 1 and type 2 diabetes (N=6,000); and stays with a diagnosis of diabetes w here the codes … There are over 70,000 ICD-10-CM diagnosis codes. … The CCSR capitalizes on the specificity of the ICD-10-CM coding scheme and allows ICD-10-CM codes to … Rural-Urban Continuum Codes. www.ers.usda.gov/data-products/rural-urban-continuum- codes/. … / http://www.ers.usda.gov/data-products/rural-urban-continuum-codes/ 11 codes into the following
  20. hcup-us.ahrq.gov/db/nation/neds/NEDS_Introduction_2016.jsp
    January 01, 2016 - ICD-9-CM and ICD-10-CM/PCS codes change every October as new codes are introduced and some codes are … It is critical to check all ICD-9-CM and/or ICD-10-CM/PCS codes used for analysis to ensure the codes … starting with S, codes starting with T07-T34, codes starting with T36-T50 with a 6th character of 1, … starting with T51-T65, codes starting with T66-T76, codes starting with T79, codes T84.01 and T84.02 … , and codes O9A.2-O9A.5.

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