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KID Description of Data Elements
The KID is set of longitudinal hospital inpatient databases included in the HCUP family. These databases are created by AHRQ through a Federal-State-Industry partnership.
 
CM_NEURO - AHRQ comorbidity measure for ICD-9-CM codes: other neurological disorders
 
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.

For data beginning in the fourth quarter of 2015, the comorbidity measure is stored in the data element I10_CM_ to indicate the implementation of the ICD-10-CM/PCS coding system.

 
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Uniform Values
VariableDescriptionValueValue Description
CM_NEUROAHRQ comorbidity measure for ICD-9-CM codes: other neurological disorders0Comorbidity is not present
1Comorbidity is present
.AInvalid
 
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State Specific Notes
None
 
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Internet Citation: HCUP KID 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_neuro/kidnote.jsp.
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Last modified 9/17/08