The Foundation Component is the common core on which all Reference and Derived Classifications are based. The Pneumonia node in turn has various children, including Bacterial pneumonia (entity id: 1323682030) and Viral pneumonia (entity id: 1024154490). Thus, the node Pneumonia (entity id: 142052508) has two parents: Lung infections (entity id: 915779102) and Certain infectious or parasitic diseases (entity id: 1435254666). For example, pneumonia can be categorized as a lung infection, but also as a bacterial or viral infection (i.e. An entity can have multiple parents and child nodes. The Foundation Component is a multidimensional collection of entities. They are used to describe diseases, disorders, body parts, bodily functions, reasons for visit, medical procedures, microbes, causes of death, social circumstances of the patient, and much more. Entities are anything relevant to health care. It is a collection of over hundred thousand entities, also called classes or nodes. The WHO-FIC Foundation, also called the Foundation Component, represents the entire WHO-FIC universe.
The WHO-FIC consists of four components: the WHO-FIC Foundation, the Reference Classifications, the Derived Classifications, and the Related Classifications. The abbreviation is variously written with or without a hyphen ("WHO-FIC" or "WHOFIC"). The WHO Family of International Classifications ( WHO-FIC), also called the WHO Family, is a suit of classifications used to describe various aspects of the health care system in a consistent manner, with a standardised terminology. See also: Medical classification § WHO Family of International Classifications Īn online proposal platform (self-registration required) allows users to submit evidence-based suggestions for the improvement of the ICD-11. In the United States, a group that advises the Secretary of Health and Human Services has given an expected implementation year of 2025, but if a clinical modification is determined to be needed (similar to the ICD-10-CM), ICD-11 implementation might not begin until 2027. Currently, no country has officially switched to the ICD-11 yet. However, the WHO acknowledged in 2018 that "not many countries are likely to adapt that quickly". The ICD-11 officially came into effect on 1 January 2022. The ICD-11 is distributed under a Creative Commons BY-ND license. Both the Foundation Component and the ICD-11 MMS can be viewed online on the WHO's website. MMS stands for Mortality and Morbidity Statistics. The primary derivative of the Foundation is called the ICD-11 MMS, and it is this system that is commonly referred to as simply "the ICD-11". For example, the ICD-O is a derivative classification optimized for use in oncology. The Foundation is the common core from which all classifications are derived. The WHO-FIC contains the Foundation Component, which comprises all entities of all classifications endorsed by the WHO. The ICD-11 is part of the WHO-FIC, a family of medical classifications. There are also classes for reasons for contact with health services, social circumstances of the patient, and external causes of injury or death. It usually represents a disease or a pathogen, but it can also be an isolated symptom or (developmental) anomaly of the body. An entity can be anything that is relevant to health care. The ICD-11 is a large taxonomy consisting of about 85,000 entities, also called classes or nodes. Following an alpha version in May 2011 and a beta draft in May 2012, a stable version of the ICD-11 was released on 18 June 2018, and officially endorsed by all WHO members during the 72nd World Health Assembly on. Its development started in 2007 and spanned over a decade of work, involving over 300 specialists from 55 countries divided into 30 work groups, with an additional 10,000 proposals from people all over the world. The ICD is developed and annually updated by the World Health Organization (WHO). It will replace the ICD-10 as the global standard for coding health information and causes of death. The ICD-11 is the eleventh revision of the International Classification of Diseases. International Classification of Diseases, 11th revision