Ontario Laboratories Information System (OLIS) HL7 v2 Standard R01.33
The Ontario Laboratories Information System (OLIS) is an information repository that gives authorized health care providers access to lab test orders and results from hospitals, community labs and public health labs. As patients move between hospitals, family physicians, home care and long-term care settings, OLIS makes viewing patients’ current and past test results easier and enables treatment decisions to be made at the point-of-care.
The OLIS standard ensures all information technology systems that retrieve lab data from OLIS can exchange and understand the content through standardized HL7 messages and terminologies.
Process
The OLIS standard was created by the Ontario Ministry of Health and Long-Term Care in consultation with experts from hospital, community, and public health laboratories, the Ontario Medical Association, vendors of laboratory information systems and electronic medical record systems, in addition to a range of other stakeholders.
Status
This implementation guide has gone through a formal governance committee review and approval process, resulting in a final status.
Status
February 24, 2026
Release 1.33.0 approved by Digital Health Interoperability Standards Committee and is available for public access
October 07, 2011
Available to download