Category Archives: Acronyms


AAHC   Accreditation Association of Ambulatory Health Care
ACK     General Acknowledgment Message
ACO     Accountable Care Organization
ADR     ADT Response Message
ADT     Admission, Discharge and Transfer Message
AMIA    American Medical Informatics Association
ANSI           American National Standards Institute
ARRA          American Recovery & Reinvestment Act
ASTM          American Society for Testing and Materials
BA               Business Associate
CAH  Critical Access Hospital
CCHIT   Certification Commission for Health Information Technology
CCOW    Clinical Context Object Workgroup
CD       Channel Definition Data Type
CDA     Clinical Document Architecture
CE        Coded Element Data Type (HL7)
CE       Covered Entity
CGD     Certification Guidance Document
CM       Composite Data Type
CMET   Common Message Element Type
CMS     Centers for Medicare & Medicaid Services
CPOE   Computerized Physician Order Entry
CRM    Clinical Study Registration Message
CTO     Chief Technology Officer
DFT      Detail Financial Transaction Message
DICOM   Digital Imaging and Communications in Medicine
DOC     Document Response Message
DT        Data Type
EDIFACT   Electronic Data Interchange For Administration, Commerce and Transport
EDR     Enhanced Display Response
EHR     Electronic Health Record
EHRA   Electronic Health Record Association
EMR    Electronic Medical Record
EIA       Electronic Industries Association
ePHI    Electronic Protected Health Information
EQQ     Embedded query language query
ERP      Enterprise Resource Planning
ERP      Event Replay Response
EUCLIDES  European Clinical Data Exchange Standard
FACA   Federal Advisory Committee Act
FFS      Fee for Service (Medicare Program)
HIMSS Healthcare Information and Management Systems Society
HHS     Department of Health and Human Services
HIPAA Health Insurance Portability and Accountability Act
HCI      Healthcare Informatics
HIE      Healthcare Information Exchange
HISB    Healthcare Informatics Standards Board
HIT      Health Information Technology
HITECH  Health Information Technology for Economic and Clinical
HITSP  Healthcare Information Technology Standards Panel
HMO    Health Maintenance Organization
HL7     Health Level 7
HRSA   Human Services’ Health Resources and Services Administration
HTTP    Hypertext Transfer Protocol
IEEE    Institute of Electrical and Electronics Engineers
IEEE MEDIX    IEEE P1157 Medical Data Interchange Committee
IEM      Integrated Enterprise Modeling
IHE      Integrating the Healthcare Enterprise
ISO      International Organization for Standardization
LAN      Local Area Network
LOINC  Logical Observation Identifiers Names and Codes
MA       Medicare Advantage
MDDS     Medical Device Data Systems
MLLP   Minimal Lower Layer Protocol
MSDS  Message Standards Developers Subcommittee
MU       Meaningful Use
NA        Numeric Array Data Type
NACHC  National Association of Community Health Centers
NCQA   National Committee for Quality Assurance
NeHC   National eHealth Collaborative
NIST    National Institute of Standards and Technology
NM       Numeric Data Type
NMD    Network Management Data Message
NMQ    Network Management Query Message
NPRM  Notice of Proposal Rulemaking
NVLAP National Voluntary Laboratory Accreditation Program
OCR     Office for Civil Rights
OIG      Office of Inspector General
OMB    Office of Management and Budget
ONC     Office of the National Coordinator for Health Information
ONC-AA  ONC-Approved Accreditor
ONC-ACB  ONC-Authorized Certification Body
ONC-ATCB  ONC-Authorized Testing and Certification Body
OPM     Office of Personnel Management
OSI Model  Open Systems Interconnection Model
PCP      Primary Care Provider
PCMH  Patient Centered Medical Home
PCPCC  Patient Centered Primary Care Collaborative
PHI      Protected Health Information
PHSA   Public Health Service Act
PKI       Public Key Infrastructure
POP      Premium-Only Plan
PPO      Preferred Provider Organization
PPACA Patient Protection and Affordable Care Act
REC     Regional Extension Center
RFA      Regulatory Flexibility Act
RFR     Red Flag Rule
RHIA    Registered Health Information Administrator
RHIO   Regional Health Information Organization
RIA      Regulatory Impact Analysis
RIM      Reference Information Model
SAG     State Attorneys General
SDE     State Designated Entity
SDO     Standards Development Organization
SSA      Social Security Act
TCP/IP   Transaction Control Protocol/Internet Protocol
TPA      Third Party Administrator
TCS      Transaction Code Sets
WEDI   Workgroup for Electronic Data Interchange
XML     Extensible Markup Language