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Central Distributor SID: Description of Data Elements

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 from 1998 to 2006.

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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Internet Citation: HCUP Central Distributor SID Description of Data Elements - All States. Healthcare Cost and Utilization Project (HCUP). October 2024. Agency for Healthcare Research and Quality, Rockville, MD. www.hcup-us.ahrq.gov/db/vars/siddistnote.jsp?var=mdc18.

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Last modified 10/16/24