Central Distributor SID: Description of Data Elements

DXATADMITn - Diagnosis present at admission

Documentation Sections:

General Notes

Uniform Values

State Specific Notes

General Notes

DXatAdmitn indicates whether each diagnosis (DXn) was present at admission. This provides an indicator of complications arising during a hospitalization. If there is a time of onset for which no diagnosis code is present, DXatAdmitn is set to missing (.). In HCUP databases before 1998, this data element is called TMDXn.

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Uniform Values

Variable Description Value Value Description DXATADMITn Diagnosis present at admission 0 Diagnosis not present at admission 1 Diagnosis present at admission . Missing or diagnosis is an E-code .A Invalid

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State Specific Notes

California California supplies 25 diagnoses; DXatADMIT1-DXatADMIT25 corresponds to DX1-DX25, respectively. California also supplies 5 separate ECODEs that, prior to 2003, were placed at the end of the diagnosis array. For these years, there is no indication of the presence of the diagnosis at admission for DX26-DX30 because these variables contain E-codes. New York DXatAdmit1 was not supplied by New York, because the principal diagnosis was, by definition, present at the time of admission. Therefore, DXatAdmit1 was imputed to a value of one for all records. DXatAdmitn for E-codes were not reported by New York and were set to missing (.) during HCUP processing (see DXn note for information on placement of E-codes in the diagnosis vector).

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