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NIS Description of Data Elements
The NIS is set of longitudinal hospital inpatient databases included in the HCUP family. These databases are created by AHRQ through a Federal-State-Industry partnership.
 
MDC_NoPOA - MDC in use on discharge date, calculated without POA
 
Documentation Sections:
General Notes
Uniform Values
State Specific Notes
General Notes
 

The Major Diagnostic Category (MDC) appropriate for the date of discharge is assigned by the HCFA DRG Grouper algorithm during HCUP processing. For MDC_NOPOA, the MDC assignment is made without the use of the present on admission (POA) flags for the diagnoses. MDC_NoPOA and the Diagnosis Related Group (DRG) calculated without POA indicators (DRG_NoPOA) are useful because the lack of POA flags from many states prevents the assignment of the standard MDC and DRG for a few DRGs involving Hospital Acquired Conditions (HAC). See the general note under the HCUP variable DRG for more information about the assignment of DRGs.

Labels: Labels for the MDCs and MDC_NoPOA are provided as an ASCII file in HCUP Tools: Labels and Formats.

 
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Uniform Values
VariableDescriptionValueValue Description
MDC_NoPOAMDC in use on discharge date, calculated without POAnnMDC value
 
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State Specific Notes
None
 
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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/mdc_nopoa/nisnote.jsp.
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Last modified 9/17/08