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Central Distributor SID: Description of Data Elements

I10_DX_Admitting - Admitting ICD-10-CM Diagnosis Code
Documentation Sections:
General Notes
Uniform Values
State Specific Notes
General Notes

In the HCUP inpatient databases, the admitting ICD-10-CM diagnosis is retained in the variable I10_DX_Admitting. In HCUP outpatient data, the reason for the patient's visit is retained in up to three variables (I10_DX_VISIT_REASON1 – I10_DX_VISIT_REASON3).

Diagnoses are compared to a list of ICD-10-CM codes valid for the discharge date. Anticipation of or lags in response to official ICD-10-CM coding changes are permitted for discharges occurring within a window of time around the official ICD-10-CM coding changes (usually October 1). A year window (six months before and six months after) is allowed. Invalid diagnoses are set to "invl".

For data prior to the fourth quarter of 2015, the admitting diagnosis is stored in the data element DX_Admitting to indicate the use of the ICD-9-CM coding system.

Uniform Values
VariableDescriptionValueValue Description
I10_DX_AdmittingAdmitting ICD-10-CM Diagnosis CodeannnnnnDiagnosis code
invlInvalid: EDX02
incnInconsistent: EAGE04, EAGE05, EDX03
State Specific Notes



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