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NIS Description of Data Elements

 
CM_CHF - AHRQ comorbidity measure for ICD-9-CM codes: congestive heart failure
 
Documentation Sections:
General Notes
Uniform Values
State Specific Notes
General Notes
 

Comorbidity measures are assigned using the AHRQ comorbidity software. The AHRQ comorbidity measures identify coexisting medical conditions that are not directly related to the principal diagnosis, or the main reason for admission, and are likely to have originated prior to the hospital stay. Comorbidities are identified using ICD-9-CM diagnoses and the Diagnosis Related Group (DRG) in effect on the discharge date. The prefix "CM_" has been added to the AHRQ comorbidity software data element names to distinguish the comorbidity measures from other HCUP data elements. For more information, please refer to the materials available on the Tools and Software page of the HCUP User Support Web site.

 
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Uniform Values
VariableDescriptionValueValue Description
CM_CHFAHRQ comorbidity measure for ICD-9-CM codes: congestive heart failure0Comorbidity is not present
1Comorbidity is present
.AInvalid
 
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State Specific Notes

Pennsylvania

For the 2002-2003 NIS, this data element is not available for discharges from Pennsylvania.


 
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Internet Citation: HCUP NIS Description of Data Elements. Healthcare Cost and Utilization Project (HCUP). September 2008. Agency for Healthcare Research and Quality, Rockville, MD. www.hcup-us.ahrq.gov/db/vars/cm_chf/nisnote.jsp.
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Last modified 9/17/08