Home > Glossary of Terms, Acronyms, and Abbreviations


Term/Acronym/Abbreviation Description
API Application Programming Interface
DARC Dates Affecting Readiness to Consult
DART Dates Affecting Readiness to Treat
DHIEX Digital Health Information Exchange
DOB Date of Birth
Digital health asset Means “digital health asset” as defined in O. Reg. 329/04.
DSTU Draft Standard for Trial Use
EHR or Electronic Health Record Electronic Health Record
EMR Electronic Medical Record
ER Emergency Room
FHIR HL7 Fast Healthcare Interoperability Resources Standard
FIPPA Means the Freedom of Information and Protection of Privacy Act, RSO 1990, c F.31, and its regulations, as amended or replaced from time to time
HCN Means “health number” as defined in PHIPA
Health care practitioner Means “health care practitioner” as defined in PHIPA
HIC or health information custodian Means “health information custodian” as defined in PHIPA
HIS Hospital Information System
HL7 Health Level Seven
HTTP Hypertext Transfer Protocol
HTTPS HTTP connection encrypted by Transport Layer Security
IETF Internet Engineering Task Force
IG Implementation Guide
Interoperability specification Means “interoperability specification” as defined in O. Reg. 329/04
IPC Information and Privacy Commissioner of Ontario
LHIN Local Health Integration Network
Minister Minister of Health
MOH Ministry of Health
MRN Medical Record Number
NHS National Health and social care System
NP Nurse Practitioner
OH Ontario Health
OID Object Identifier
O. Reg. 329/04 General, Ontario Regulation 329/04 made under PHIPA
OT Occupational Therapy
PCP Primary Care Provider
PCR Provincial Client Registry
PHI or Personal Health Information Means “personal health information” as defined in PHIPA
PHIPA Means the Personal Health Information Protection Act, 2004, SO 2004, c 3, Sch A, as may be amended or replaced from time to time
PI or Personal Information Means “personal information” as defined in FIPPA
PO or Prescribed Organization Means “prescribed organization” as defined in PHIPA
POS Point of Service Application or System
PPR Provincial Provider Registry
PSD Provincial Service Directory
Pub/Sub Publish/subscribe is a messaging pattern where senders of messages, called publishers, do not program the messages to be sent directly to specific receivers, called subscribers, but instead categorize published messages into classes without knowledge of which subscribers, if any, there may be. Similarly, subscribers express interest in one or more classes and only receive messages that are of interest, without knowledge of which publishers, if any, there are.
REST Representational State Transfer
RFI Request for Information
RMS Referral Management System: an electronic referral system that mediates the referral process on behalf of the Referral source and referral target, e.g., send referral, receive referral, update referrals. It also assists in managing information of referrals for all the healthcare services that it provides.
RHP Regulated Healthcare Provider
RPDB Ontario Registered Persons Database
SAML Security Assertion Markup Language
URI Uniform Resource Identifier
THOR Transaction History Registry, a central storage to keep province-wide transactional logs