Health Informatics Glossary
Pay for performance, or value based purchasing, is a new health insurance
payment model that rewards healthcare providers for quality and efficiency,
as opposed to the legacy "fee for service" health insurance payment model.
Bridges to Excellence,
Fee For Service,
In network computing a "packet" consists of two kinds of data: control or
address information, and the payload. Packets are on layer 3 in the seven
layer OSI See
The Xerox Palo Alto Research Center,
legendary for breakthrough inventions that advanced computer technology.
In a structured terminology concepts are organized by assertions of parent and
child relationships between the concepts. Ancestor is a synonym for parent in a
Participation Agreement -
A data use agreement. See
Data Use Agreement
A patent is a form of intellectual property in which a sovereign state
guarantees exclusive rights for a limited period of time.
A patient is a recipient of health care. The term is derived from Latin and
Greek words for suffering.
Pay For Performance -
Policy Based Access Control.
Pacific Business Group on Health.
Pharmacy Benefit Manager, the third party administrator of a prescription
drug health insurance program.
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Patient Centered Medical Home is a team based care delivery model led by a
primary care provider who organizes comprehensive, continuous and coordinated
care. The PCMH model was originated and studied by four professional
associations: AAP, AAFP, ACP, and AOA. The model suffers from some
terminology ambiguity and diffusion due to aggressive adoption of the PCMH
concept by various payer organizations whose focus is on health care
procurement efficiency rather than care coordination.
Portable Document Format.
Patient Demographic Query is a service in an IHE
environment. Sometimes referred to as "DQ."
The US President's Emergency Plan for AIDS Relief (PEPFAR).
PGHD - Patient generated health data.
HIPAA regulations define Protected Health Information (PHI) as "any information,
whether oral or recorded in any form or medium" that is "created or received
by a health care provider, health plan, public health authority, employer,
life insurer, school or university, or health care clearinghouse" and that
describes "the past, present, or future physical or mental health or condition
of an individual; the provision of health care to an individual; or the past,
present, or future payment for the provision of health care to an individual."
Public Health Information Network. See
Health Record is a tool for consumers to keep track of their own health
information as well as that of their children and elderly or other dependents,
creating a record organized by a single patient across multiple sites of care.
The Public Health Service, whose full name is the
Commissioned Corps of the U.S. Public
Health Service. Overseen by the Surgeon General, the USPHS is one of the
uniformed service branches of the U.S. government.
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Public Health Service Act.
Patient identification segment of an HL7 message.
Personally Identifiable Information (PII) is a legal concept from US privacy
law that has been shown to be technically irrelevant in defense of personal
privacy. The term PII originated in the previous decade, was written into
privacy information standards published by NIST, and saw prolific uptake in
state and federal privacy law and regulations and in corresponding European
and Australian law. However in
Schmatikov (Stanford) and Narayanan (U. Texas) demonstrated conclusively that
given sparse access to a portion of PII it is trivial to re-identify individuals.
Policy wonks, lawyers, and lawmakers MUST consider the principles of informatics
and the expertise of computer scientists BEFORE drafting and propagating
regulations that are not useful.
Patient Identification cross reference service in an
Public Key Infrastructure, the framework and services that provide for
generation, production, distribution, control, accounting and destruction of
public key certificates. Components include personnel, policies, processes,
server platforms, software, and workstations to administer certificates and
public-private key pairs, including the ability to issue, maintain, recover,
and revoke public key certificates.
Public Library of Science, a
nonprofit organization of scientists and physicians committed to
making the world's scientific and medical literature a public
Practice Management Software, typically coordinating the administrative
services of patient registration, appointment scheduling and medical billing.
Physician Orders for Life Sustaining Treatment.
Problem Oriented Medical Record.
Part of speech.
Plain Old Telephone Service (POTS) is the voice-grade analog telephone service
that includes a full duplex voice signal with dial tone and call progress tones,
including a ringing signal. POTS circuits remain backwards compatible with
pulse dialing. Many modern services are overlaid on POTS circuits, such as
touch tones, caller ID, voice mail, call waiting, etc.
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The Patient Protection and
Affordable Care Act, the full name of the law that is commonly shortened
to the "Affordable Care Act," and also called "Obamacare." Collectively, the
PPACA is a set of experiments and systemic changes introduced by the major
health care reform legislation passed by the US Congress in March 2010. The
PPACA law takes effect gradually from 2012 through 2014. Major features include
expanding Medicaid eligibility (in some states), subsidizing insurance premiums,
providing incentives for businesses to offer or expand health care benefits,
prohibiting denial of coverage or refusal of claims based on pre-existing
conditions, establishing health insurance exchanges (in some states), and
supporting new medical research. See
Preferred Provider Organization.
Personalized Prevention Plan Services, a new billable encounter for an annual
wellness exam created by the Affordable Care Act.
Positive predictive value.
Prior to 2010, the Physician Quality Reporting System (PQRS) was known as the
Physician Quality Reporting Initiative (PQRI).
The Physician Quality Reporting
System, establishes a financial incentive for eligible healthcare providers
to participate in a voluntary quality reporting program operated by CMS for
Bridges to Excellence,
Privacy Spill -
The accidental disclosure of PHI.
Private Key -
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Process Flow Diagram -
Protected Health Information
 In computing a protocol is a formal description of message
formats and the rules for exchanging those messages. Protocols may include
signaling, authentication and error detection and correction capabilities. In
its simplest form, a protocol can be defined as the rules governing the syntax,
semantics, and synchronization of communication. At the lowest level, a
protocol defines the behaviour of a hardware connection.  In
the natural sciences a protocol is a written procedural method in the design
and implementation of experiments.
Prototype Architecture -
The first stage in the development of the Nationwide Health Information Network
(NwHIN) was the Prototype
Architecture. Four consortia participated as federal contractors in a
formal process to design and evaluate standards-based architectures for the
NwHIN. The project ran from 2005 to 2007, during which time the NwHIN was
referred to as the NHIN. See
Public Key -
In cryptography, a public key is a value provided by a designated certificate
authority (CA) as an encryption key that, combined with a private key derived
from the public key, can be used to effectively encrypt messages and digital
signatures. The use of combined public and private keys is known as asymmetric
cryptography. A system for using public keys is called a public key
Patient visit segment of an HL7 message.