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HL7 Interface
HL7 (Health Level Seven) is an international set of standards used for the electronic exchange of healthcare information between different medical systems. It enables seamless communication between systems such as HIS, LIS, RIS, EMR, PACS, and billing platforms, ensuring interoperability across the healthcare ecosystem.
Purpose of HL7
HL7 ensures that clinical and administrative data — such as patient demographics, lab results, admissions, discharges, and reports — can be securely and accurately shared between different healthcare applications.
Benefits of HL7 Technology
- 1. Enables system interoperability
- 2. Reduces manual data entry
- 3. Improves data accuracy
- 4. Supports real-time data exchange
- 5. Enhances workflow automation
HL7 Workflow Example
Typical healthcare data exchange workflow:
- 1. Patient registers in HIMS
- 2. HIMS sends ADT message to LIS
- 3. Doctor orders lab test
- 4. HIMS sends ORM message to LIS
- 5. Laboratory performs test.
- 6. LIMS sends ORU message back to HIMS
- 7. Result stored in EMR
Systems That Use HL7
HL7 enables communication between:
- 1. HIMS (Hospital Information Management System)
- 2. LIMS (Laboratory Information Management System)
- 3. RIS (Radiology Information System)
- 4. PACS (Imaging Systems)
- 5. EMR / EHR
- 6. Pharmacy and Billing systems