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Central Distributor SID: Description of Data Elements

AYEAR - Admission year
Documentation Sections:
General Notes
Uniform Values
State Specific Notes
General Notes

Admission year (AYEAR) is derived from the admission date (ADATE). If ADATE is missing, then AYEAR is missing (.). If ADATE is invalid, then AYEAR is invalid (.A).

Uniform Values
VariableDescriptionValueValue Description
AYEARAdmission yearyyyyAdmission year
State Specific Notes

New York

In the 1998-2000 data, admission year (AYEAR) is missing (.) on AIDS/HIV discharges. New York identifies AIDS/HIV records by ICD-9-CM diagnosis code or DRG:

  • An admitting, principal, or secondary diagnosis of "042" "043" "044" "7958" "27910", "27919", "2793", "1363", "79571", "07951", "07952", "07953" or "V08".
  • A DRG of 488 "HIV with Extensive Operating Room Procedure", 489 "HIV with Major related condition", or 490 "HIV with or without Other Related Condition".

Please note that the admitting diagnosis is not retained in the HCUP databases.


Internet Citation: HCUP Central Distributor SID Description of Data Elements - All States. Healthcare Cost and Utilization Project (HCUP). May 2024. Agency for Healthcare Research and Quality, Rockville, MD.
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Last modified 5/22/24