Healthcare Cost and Utilization Project (HCUP) KID Notes

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.

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MDC18 - MDC, Version 18

Documentation Sections:

The Major Diagnostic Category, Version 18 (MDC18) is assigned by the HCFA DRG Grouper algorithm during HCUP processing. Refer to the notes for the data element DRG18 for complete details. MDC18 is available on the HCUP databases beginning in 1998.

Labels

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

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Uniform Values

Variable	Description	Value	Value Description
MDC18	MDC, Version 18	nn	MDC value

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State Specific Notes

None

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Additional information is available on the AHRQ Website.
If you have comments, suggestions, and/or questions, please contact hcup@ahrq.gov.

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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/mdc18/kidnote.jsp.

Last modified 9/17/08