Receipt of this file requires that the requester sign a confidentiality agreement. Data providers are notified of data requests and a 10-day comment period is imposed.

Emergency data is comprised of patients who were treated and released from the emergency room and patients that were admitted as an inpatient to the facility from the emergency room.

The records have an indicator for each type of patient. (IP) indicates those patients who were admitted as an inpatient. (OP) indicates those patients who were treated and released from the emergency room.

• Hospital Code
• Medical Record Number (Encrypted)
• Date of Birth
• Patient Gender
• Patient Age
• Patient Residence - Town/ County Code
• Patient Residence - Zip Code
• Patient Residence - Hospital Service Area (35)
• Patient Residence - Health Planning Area (66)
• Date of Service from (OP)/Date of Admission (IP)
• Date of Service thru (OP)/Date of Discharge (IP)
• Patient Disposition
• Source of Admission
• ICD-9 Principal Diagnosis (OP)/Admitting Diagnosis (IP)
• ICD-9 Other Diagnoses 1 - 8 (OP Records Only)
• CPT-4 Procedure Codes
• Service Dates
• E-Codes
• Ordering/Referring Practitioner Specialty Code (OP Only)
• Ordering/Referring Practitioner (MHDO ID Encrypted) (OP Only)
• Operating Practitioner Specialty Code (OP Only)
• Operating Practitioner (MHDO ID Encrypted) (OP Only)
• Primary Payer ID
• Revenue Codes
• Charges by Revenue Codes¹
• Total Charges for OP Encounter¹

¹Beginning with 2003 data, charge information is no longer available.