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Health Informatics Glossary

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P4P   -   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.   See Bridges to Excellence, Fee For Service, Meaningful Use, NQF, PQRS, Triple_Aim

Packet   -   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 Computer Icon, Ethernet, GUI, Laser Printer, Mouse, OSI Model, WYSIWYG

PARC   -   The Xerox
Palo Alto Research Center, legendary for breakthrough inventions that advanced computer technology.   See Computer Icon, Ethernet, GUI, Laser Printer, Mouse, WYSIWYG

Parent   -   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 terminology hierarchy.   See Ancestor, Child, Concept, Descendant, Hierarchy, Relationship, Terminology

Participation Agreement   -   A data use agreement.   See Data Use Agreement

Patent   -   A patent is a form of intellectual property in which a sovereign state guarantees exclusive rights for a limited period of time.   See Copyright, Intellectual_Property

Patient   -   A patient is a recipient of health care. The term is derived from Latin and Greek words for suffering.   See Client, Consent, Home Health, Inpatient, Resident, Outpatient

Pay For Performance   -   See P4P

PBAC   -   Policy Based Access Control.   See ABAC, AC, RBAC

PBGH   -   Pacific Business Group on Health.

PBM   -   Pharmacy Benefit Manager, the third party administrator of a prescription drug health insurance program.

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PBRN   -   Practice-Based Research Network.

PC   -   Personal Computer.

PCMH   -   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.   See AAP, AAFP, ACP, AOA, NCQA

PDF   -   Portable Document Format.

PDQ   -   Patient Demographic Query is a service in an IHE environment. Sometimes referred to as "DQ."   See DQ, DR, IHE, PIX

PE   -   Practice Expense.   See CMS

PEPFAR   -   The US President's Emergency Plan for AIDS Relief (PEPFAR).   See OpenHIE

PFS   -   See MPFS

PGHD   -   Patient generated health data.   See PHR

PHI   -   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."   See Common Framework, Decedent, HIPAA, PII, Privacy Spill, Unsecured PHI

PHIN   -   Public Health Information Network.   See CDC, COP, InfoLinks

PHR   -   The Personal 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.   See HealthVault, PGHD

PHS   -   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.   See NHSC

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PHSA   -   Public Health Service Act.

PID   -   Patient identification segment of an HL7 message.   See HL7

PII   -   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 2008, 2009, and 2010 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.   See CMIA, Computer Science, HIPAA, Informatics, NIST, PHI, Unsecured PHI

PIX   -   Patient Identification cross reference service in an IHE environment.   See IHE, MPI, PDQ

PKI   -   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.   See CA, CP, CRL, Encryption, FPKI, Public Key, X.509

PLoS   -   Public Library of Science, a nonprofit organization of scientists and physicians committed to making the world's scientific and medical literature a public resource.

PMS   -   Practice Management Software, typically coordinating the administrative services of patient registration, appointment scheduling and medical billing.

POLST   -   Physician Orders for Life Sustaining Treatment.

POMR   -   Problem Oriented Medical Record.   See SOAP

POS   -   Part of speech.   See NLP

POTS   -   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.   See Analog, DSL, Modem, WiMAX

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PPACA   -   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 ACA, CMS, PPPS

PPO   -   Preferred Provider Organization.   See HMO

PPPS   -   Personalized Prevention Plan Services, a new billable encounter for an annual wellness exam created by the Affordable Care Act.   See CMS, IPPE, PPACA

PPV   -   Positive predictive value.   See Sensitivity

PQRI   -   Prior to 2010, the Physician Quality Reporting System (PQRS) was known as the Physician Quality Reporting Initiative (PQRI).   See PQRS

PQRS   -   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 Medicare patients.   See Bridges to Excellence, CMS, IHI, NQF

Privacy Spill   -   The accidental disclosure of PHI.   See Common Framework, HIPAA, PHI, RLS

Private Key   -   See Public Key

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Process Flow Diagram   -   See Swimlanes

Program   -   See Software, Source Code

Protected Health Information   See PHI

Protocol   -   [1] 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. [2] In the natural sciences a protocol is a written procedural method in the design and implementation of experiments.   See Algorithm, Care Pathway, Computer Science, Guideline, Interface, Internet Protocol, NLM, Stateless Protocol

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 Mendocino HRE, NHIN, NwHIN, ONC, Trial Implementation

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 infrastructure (PKI).   See Decryption, Digital Certificate, Encryption, Private Key, PKI, X.509

PV1   -   Patient visit segment of an HL7 message.   See HL7





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Last Update:   1 August 2014