Glossary of Health Care and Medical Terms

In many cases,
You can click on the healthcare related term below to get a more in-depth description of that glossary term. On the extended definition page, you will be shown the longer description, plus a list of articles related to that term or topic.


Iatrogenic Diseases are adverse conditions caused by interacting with the health care system, such as hospital-acquired infections
Also see: HAC


International Classification of Diseases. Codes disease maintained by the World Health Organization. These codes describe a disease or condition. ICD codes are used to classify diagnoses and causes of death. As many as four ICD-9 codes can be linked to one CPT code on a standard HCFA-1500 insurance claim form.

ICD-10 codes are currently used by most of the world. The Centers for Medicare and Medicaid Services (CMS) requires the use or this coding starting in 2014. Some CPT codes will be included. International Classification of Diseases, Tenth Revision.

ICD-10 codes are alphanumeric and contain 3 to 7 characters, whereas, ICD-9 codes are mostly numeric and have 3 to 5 digits.

Health care providers covered by the Health Insurance Portability and Accountability Act of 1996 (HIPAA) will be required to document health care transactions using ICD-10 codes. This includes providers and payers who do not deal with Medicare claims.

Claims for all services and hospital inpatient procedures performed on or after the ICD-10 compliance deadline must use ICD-10 diagnosis and inpatient procedure codes.

ICD-10-CM is a clinical modification of the World Health Organization’s ICD-10. ICD-10-CM is a diagnostics classification system. ICD-10-CM includes the level of detail needed for morbidity classification and diagnostics specificity in the United States. It also provides code titles and language that compliment accepted clinical practice in the US. The system consist of more than 68,000 diagnosis codes
Also see: ICD, ICD-10, ICD-9-CM

ICD-10-PCS is a procedure code capture system, which is much more detailed and specific than the short volume of procedure code included in ICD-9-CM.  ICD-10-PCS is used for hospital inpatient procedures only
Also see: ICD-10, ICD-9-CM, ICD-10-CM

ICD-9 is International Classification of Diseases, Ninth Revision. It is a procedure and diagnosis coding system.

Claims for all services and hospital inpatient procedures provided before the ICD-10 compliance date must use ICD-9 / ICD-9-CM codes.
Also see: ICD, ICD-10, ICD-9-CM

International Classification of Diseases, Ninth Revision, Clinical Modification.

The International Classification of Primary Care (ICPC) is a classification method for primary care encounters

ICPC-2 classifies patient data and clinical activity in the domains of General/Family Practice and primary care, taking into account the frequency distribution of problems seen in these domains.

and analysis. ICPC-2 PLUS takes into account the frequency distribution of problems seen in primary health care


Information Collection Request (ICR) is a set of documents that describe reporting, record keeping, survey, or other information collection requirements imposed on the public by the Environmental Protection Agency or any other federal agency.


Integrated Delivery Network

Iowa Foundation for Medical Informatics

Interim Final Rule

Institute of Healthcare Improvement

Imaging Informatics is concerned with the common issues that arise in all image modalities, relating to the acquisition of image in or conversion to digital form, and the analysis, manipulation, and use of those images once they are in digital form

Infertility primarily refers to the biological inability of a man or a woman to contribute to conception. Infertility may also refer to the state of a woman who is unable to carry a pregnancy to full term.

An informatician is one who is skilled in informatics and computer science. They focus on a variety of clinical applications including decision support systems, electronic health records, and the development of clinical repositories and data warehouses. See Health Informatics

Institute of Medicine (IOM) is a non-profit national advisory group on health matters.Introduced the term Computer Based Patient Record (CPR) in 1991.
Also see: IOM

Insurance affordability programs: Medicaid, CHIP, and new federal subsidies to help low-and moderate-income people purchase coverage in the exchange.

Interoperability is the ability of systems to transmit and receive information from other systems. The definition of Electronic Health Records (EHR) includes the concept of interoperability.

Also see: Institute of Medicine

Independent Practice Association.Physicians in their individuals offices form an IPA which contracts with the HMO and manages the capitation payment (the lump sum paid by the payers to care for a group of subscribers)

The Inpatient Prospective Payment System (IPPS) Fiscal Year (FY) 2009 Final Rule determined payment implications for each of the different POA Indicator reporting options


Hospital Inpatient Quality Reporting (IQR) Program

Inter-SNO Bridge (ISB) - is a term used by Connecting for Health to refer to the interface or point of contact between SNOs. From the publication, The Connecting for Health Common Framework: Technical Issues and Requirements for Implementation. for Health is a public-private collaborative of more than 100 organizations representing a diverse array of private, public, and not-for-profit groups.

International Organization for Standardization is a worldwide federation of national standards bodies from some 130 countries, one from each country.

ISO created a layered model, called the OSI (Open Systems Interconnect) model, to describe defined layers in a network operating system. The purpose of the layers is to provide clearly defined functions that can improve Internetwork connectivity between "computer" manufacturing companies. Each layer has a different function. The HL7 standard refers to the 7th level which is the Application function.

Information Technology

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