Health Informatics Glossary
The American Academy of Family Physicians
is a medical specialty society that represents 90,000 physicians and medical
students. The Mission of the AAFP is to improve the health of patients,
families and communities by serving the needs of members with professionalism
and creativity. See
American Association of Nurse
American Academy of Pediatrics.
American Academy of Physician Assistants.
Attribute Based Access Control. See
Access Control (AC) is accomplished by hardware, software or operating
policies that control access to facilities, computer devices and
computerized systems (from an individual program to a network).
("AW-kuh") The Affordable Care Act, sometimes called
"Obamacare." It's full name is PPACA. See
American College of Cardiology
Acceptance Testing -
A formal quality assurance process that allows users to impose standard
performance tests on a newly delivered software or computer system prior to
production use of the system. See
Access Control -
Top of Page
Access Point -
A radio transceiver for wireless LAN access. A wi-fi base station.
Voluntary certification conferred by a professional organization, such as
NCQA or TJC. See
A response flag in TCP to acknowledge receipt of a packet. The term is also
used generically in other data networking contexts to acknowledge receipt of
a message or a handshake, including HL7. See
Access Control List. See
Accountable Care Organization. See
American College of Physicians.
Acute Care -
Health care typically delivered to a patient in a hospital and generally
involving at least one overnight stay. See
American Dental Association
Admission-Discharge-Transfer, the transactional data set, typically in a
hospital information system, that maintains and updates the patient census
by noting the time and date of each transition in patient status or location.
Also, the HL7 message stream for the data set. See
Top of Page
The process of a patient being admitted to a hospital. See
Short for "advertising supported software," a category of software which
automatically renders advertisements. Most adware is harmless. However
adware is also used as a method of attack for the insertion of spyware,
such as keyloggers and other info-stealers. See
Adverse Event -
An adverse event is an injury caused by medical management,
rather than by the underlying condition of the patient.
Agency for Healthcare Research and Quality -
Computer software programmed to automate a task, such as searching
for specific information in a data rich environment.
Aggregated Data -
A set of data compiled for activities such as Public Health or
clinical research. Aggregated data sets are typically intended
to be unidentifiable at the level of an individual person, however
the recent appearance of massively popular social networking sites
on the internet has been shown to enable reidentification of
individuals in data sets previously assumed to be de-identified.
American Hospital Association
Top of Page
The American Health Information Community was a 17 member federal advisory
body assembled in 2005 to make recommendations to the Secretary of the U.S.
Department of Health and Human Services (HHS) on how to accelerate the
development and adoption of health information technology. AHIC was
transitioned to the private sector in 2008 by the outgoing Bush
administration and renamed the National
eHealth Collaborative. See
American Health Information Management
America's Health Insurance Plans
The Armed forces Health Longitudinal Technology Application. See
The Agency for Healthcare Research and
Quality is major division in the U. S. Department of
Health and Human Services. The mission of
AHRQ is to improve the quality, safety, efficiency, and effectiveness of
health care for all Americans. See
American Immunization Registry
Association, publisher of
Implementation Guides for Immunization Messaging. See
Acronym for a creative mash up of software technologies, classic Ajax includes
descendants, enable client side web development of richly featured
asynchronous web applications. See
Top of Page
A method of problem solving in which instructions are followed in a (usually)
specific sequence. Algorithms may involve numeric calculation. See
American Medical Association
Ambulatory Care -
A health care consultation delivered on an outpatient basis. See
American Medical Informatics
Association, a national member society of IMIA.
American Nurses Association
An analog signal is continuous in time and amplitude, as opposed to a
digital signal, which is discrete. Legacy voice grade phone systems, sometimes
called Plain Old Telephone Service (POTS), use analog circuits.
Top of Page
In a concept hierarchy, an ancestor is a concept that is located above a
specific concept in the hierarchy. Example: in SNOMED CT, cardiovascular
disease is an ancestor of myocardial infarction. See
A filtering process intended to transform data into a format which does not
allow determination of the specific identity to whom the data refers.
[ ANN-sea ] The American
National Standards Institute is the U.S. member body to the
ISO. ANSI does not write standards; rather
the Institute accredits standards developers that will establish consensus
among qualified groups. See
Answering Machine -
A simple analog or digital device to record messages on a telephone.
American Osteopathic Association.
American Psychological Association
American Public Health Association
Association of Public Health Laboratories
Application program interface.
Computer program that carries out a specific task, such as a
"word processing application" or an LIS or EHR.
[ ARR-uh ] The American Recovery and Reinvestment Act
of 2009, a $787 billion stimulus measure signed into law by President Obama
on February 17, 2009. The HITECH portion of the law provided subsidies for
aggressive private sector investment in health IT. See
Top of Page
[ ASS-key] American Standard Code for Information
Interchange, a character encoding scheme originally based on the English
alphabet. The first edition was published in 1963. See
Application Service Provider, a type of Client-Server installation where a
business hosts computer-based services for customers to access across a
network, such as EHR or PMS solutions accessed over the Internet. The
traditional topology to provision ASP services assumes there is a single
server hosting the application(s).
[ AS-tow ] Association
of State and Territorial Health Officials is a non-profit membership
association representing the chiefs of state and territorial health
The American Society for Testing and Materials
began as a domestic engineering standards body and later evolved into an
international standards organization (ISO). See
The Audit Trail and Node Authentication service establishes the
characteristics of a basic secure node in an IHE
A functional or descriptive data element in a terminology. See
Attribute Value -
Audit Log -
Record created by hardware (servers, routers, firewalls, etc.) or software
(data bases, network systems, individual applications, etc.) that track when
data are created, modified, transmitted or destroyed, including the identity
of the user initiating the action.
The physical or process method or methods employed to prove that the person
or entity seeking access to information has the proper authorization.
Generally used to protect confidential information by limiting system access
to authorized users. Passwords are an example of a commonly employed
authentication process. See
Top of Page
The organization responsible for creation and maintenance of a terminology or
a vocabulary. For example, IHTSDO is the
authority responsible for SNOMECD CT. See
A system established to grant access to generally confidential information.
Authorization establishes the level of access by an individual or entity to
data based on the identity established by an authentication process.