ICD-10-AM
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ICD-10 is the 10th revision of the
International Classification of Diseases The International Classification of Diseases (ICD) is a globally used medical classification that is used in epidemiology, health management and clinical diagnosis. The ICD is maintained by the World Health Organization (WHO), which is the dir ...
(ICD), a
medical classification A medical classification is used to transform descriptions of medical diagnoses or procedures into standardized statistical code in a process known as clinical coding. Diagnosis classifications list diagnosis codes, which are used to track dise ...
list by the
World Health Organization The World Health Organization (WHO) is a list of specialized agencies of the United Nations, specialized agency of the United Nations which coordinates responses to international public health issues and emergencies. It is headquartered in Gen ...
(WHO). It contains codes for diseases, signs and symptoms, abnormal findings, complaints, social circumstances, and external causes of injury or diseases. Work on ICD-10 began in 1983, was endorsed by the Forty-third
World Health Assembly The World Health Assembly (WHA) is the forum through which the World Health Organization (WHO) is governed by its 194 World Health Organization#Membership, member states. It is the world's highest health policy setting body and is composed of h ...
in 1990, and came into effect in member states on January 1, 1993. ICD-10 was replaced by
ICD-11 The ICD-11 is the eleventh revision of the International Classification of Diseases (ICD). It replaces the ICD-10 as the global standard for recording health information and causes of death. The ICD is developed and annually updated by the World H ...
on January 1, 2022. While WHO manages and publishes the base version of the ICD, several member states have modified it to better suit their needs. In the base classification, the code set allows for more than 14,000 different codes and permits the tracking of many new diagnoses compared to the preceding
ICD-9 The International Classification of Diseases (ICD) is a globally used medical classification that is used in epidemiology, health management and clinical diagnosis. The ICD is maintained by the World Health Organization (WHO), which is the direc ...
. Through the use of optional sub-classifications, ICD-10 allows for specificity regarding the cause, manifestation, location, severity, and type of injury or disease. The adapted versions may differ in a number of ways; some national editions have expanded the code set even further, with some going so far as to add
procedure code Procedure codes are a sub-type of medical classification used to identify specific surgery, surgical, medical procedure, medical, or diagnosis, diagnostic interventions. The structure of the codes will depend on the classification; for example so ...
s.
ICD-10-CM The ICD-10 Clinical Modification (ICD-10-CM) is a set of diagnosis codes used in the United States of America. It was developed by a component of the U.S. Department of Health and Human services, as an adaption of the ICD-10 with authorizatio ...
, for example, has over 70,000 codes. The WHO provides detailed information about the ICD via its website—including an ICD-10 online browser and ICD training materials. The online training includes a support forum, a self-learning tool and user guide.


Chapters

The following table lists the chapter number (using
Roman numerals Roman numerals are a numeral system that originated in ancient Rome and remained the usual way of writing numbers throughout Europe well into the Late Middle Ages. Numbers are written with combinations of letters from the Latin alphabet, eac ...
), the code range of each chapter, and the chapter's title from the international version of the ICD-10.


National adoptions

Approximately 27 countries use ICD-10 for reimbursement and resource allocation in their health system, and some have made modifications to ICD to better accommodate its utility. The unchanged international version of ICD-10 is used in 117 countries for performing cause of death reporting and statistics. The national versions may differ from the base classification in the level of detail, incomplete adoption of a category, or the addition of
procedure code Procedure codes are a sub-type of medical classification used to identify specific surgery, surgical, medical procedure, medical, or diagnosis, diagnostic interventions. The structure of the codes will depend on the classification; for example so ...
s.


Australia

Introduced in 1998, ICD-10 Australian Modification (ICD-10-AM) was developed by the National Centre for Classification in Health at the
University of Sydney The University of Sydney (USYD) is a public university, public research university in Sydney, Australia. Founded in 1850, it is the oldest university in both Australia and Oceania. One of Australia's six sandstone universities, it was one of the ...
. It is currently maintained by the Australian Consortium for Classification Development. ICD-10-AM has also been adopted by
New Zealand New Zealand () is an island country in the southwestern Pacific Ocean. It consists of two main landmasses—the North Island () and the South Island ()—and List of islands of New Zealand, over 600 smaller islands. It is the List of isla ...
,
Ireland Ireland (, ; ; Ulster Scots dialect, Ulster-Scots: ) is an island in the North Atlantic Ocean, in Northwestern Europe. Geopolitically, the island is divided between the Republic of Ireland (officially Names of the Irish state, named Irelan ...
,
Saudi Arabia Saudi Arabia, officially the Kingdom of Saudi Arabia (KSA), is a country in West Asia. Located in the centre of the Middle East, it covers the bulk of the Arabian Peninsula and has a land area of about , making it the List of Asian countries ...
and several other countries.


Brazil

Brazil Brazil, officially the Federative Republic of Brazil, is the largest country in South America. It is the world's List of countries and dependencies by area, fifth-largest country by area and the List of countries and dependencies by population ...
introduced ICD-10 in 1996. The provisional translation of the ICD-10 for Brazilian Portuguese was started around 1986. Brazil was designated the Field Trial Coordinating Centre for field testing of the list's Chapter V, and the translation was then updated and modified by several contributors across the country. One of the final versions was proofread by J. Leme Lopes, and the final translation was created directly from the English-language version in 1992.


Canada

Canada Canada is a country in North America. Its Provinces and territories of Canada, ten provinces and three territories extend from the Atlantic Ocean to the Pacific Ocean and northward into the Arctic Ocean, making it the world's List of coun ...
began using ICD-10 for mortality reporting in 2000. A six-year, phased implementation of ICD-10-CA for morbidity reporting began in 2001. It was staggered across Canada's ten provinces, with
Quebec Quebec is Canada's List of Canadian provinces and territories by area, largest province by area. Located in Central Canada, the province shares borders with the provinces of Ontario to the west, Newfoundland and Labrador to the northeast, ...
the last to make the switch. ICD-10-CA is available in both English- and French-language versions.


China

China China, officially the People's Republic of China (PRC), is a country in East Asia. With population of China, a population exceeding 1.4 billion, it is the list of countries by population (United Nations), second-most populous country after ...
adopted ICD-10 in 2002.


Czech Republic

The
Czech Republic The Czech Republic, also known as Czechia, and historically known as Bohemia, is a landlocked country in Central Europe. The country is bordered by Austria to the south, Germany to the west, Poland to the northeast, and Slovakia to the south ...
adopted ICD-10 in 1994, one year after its official release by WHO. Revisions to the international edition are adopted continuously. The official Czech translation of ICD-10 2016 10th Revision was published in 2018.


Denmark

ICD-10 was first introduced into the psychiatric health service system on January 1, 1994.


Estonia

Estonia Estonia, officially the Republic of Estonia, is a country in Northern Europe. It is bordered to the north by the Gulf of Finland across from Finland, to the west by the Baltic Sea across from Sweden, to the south by Latvia, and to the east by Ru ...
adopted ICD-10 from January 1, 1997, via a ministerial degree. However, chapter V "Mental and behavioural disorders" had already been in use from January 1, 1994, also via a ministerial degree.


France

France France, officially the French Republic, is a country located primarily in Western Europe. Overseas France, Its overseas regions and territories include French Guiana in South America, Saint Pierre and Miquelon in the Atlantic Ocean#North Atlan ...
introduced a clinical addendum to ICD-10 in 1997. See also website of the ATIH.


Germany

Germany Germany, officially the Federal Republic of Germany, is a country in Central Europe. It lies between the Baltic Sea and the North Sea to the north and the Alps to the south. Its sixteen States of Germany, constituent states have a total popu ...
's ICD-10 German Modification (ICD-10-GM) is based on ICD-10-AM. ICD-10-GM was developed between 2003 and 2004, by the
German Institute for Medical Documentation and Information The German Institute for Medical Documentation and Information (), abbreviated DIMDI, was a German organization responsible for medical information classification and management. It was a government Institute of the German Federal Ministry of Heal ...
(DIMDI). Since the dissolution of the DIMDI in 2020, the
Federal Institute for Drugs and Medical Devices The Federal Institute for Drugs and Medical Devices (in German: Bundesinstitut für Arzneimittel und Medizinprodukte – ''BfArM'') is the medical regulatory body in Germany. It operates under the Federal Ministry of Health (BMG). It is headqua ...
(BfArM) has been responsible for maintaining the ICD-10-GM.


Greece

Greece Greece, officially the Hellenic Republic, is a country in Southeast Europe. Located on the southern tip of the Balkan peninsula, it shares land borders with Albania to the northwest, North Macedonia and Bulgaria to the north, and Turkey to th ...
introduced ICD-10 on December 23, 2023. The Greek DRG (Gr-DRG) system is based on the Greek modification of the International Statistical Classification of Diseases and Related Health Problems, based on the 2013 German Amendment of ICD-10 (ICD-10-GM), and a systematic catalog of codes of medical procedures called Greek Medical Procedure Classification (GMPC), based on corresponding international procedural classification.


Hungary

Hungary Hungary is a landlocked country in Central Europe. Spanning much of the Pannonian Basin, Carpathian Basin, it is bordered by Slovakia to the north, Ukraine to the northeast, Romania to the east and southeast, Serbia to the south, Croatia and ...
introduced the use of ICD-10 from January 1, 1996, via a ministerial decree.


Korea

A Korean modification has existed since 2008.


Netherlands

The Dutch translation of ICD-10 is ICD10-nl, which was created by the WHO-FIC Network in 1994. There is an online dictionary.


Russia

The Ministry of Healthcare of the Russian Federation ordered in 1997 to transfer all health organizations to ICD-10.


South Africa

ICD-10 was implemented in July 2005 under the auspice of the National ICD-10 Implementation Task Team which is a joint task team between the National Department of Health and the Council for Medical Schemes.


Sweden

The current Swedish translation of ICD-10 was created in 1997.


Switzerland

In Switzerland, the German Modification (ICD-10-GM) is used for coding diagnoses. The Federal Statistical Office (FSO) of Switzerland publishes the ICD-10-GM in French and Italian every two years.


Thailand

The ICD-10-TM (Thai Modification) is a
Thai language Thai,In or Central Thai (historically Siamese;Although "Thai" and "Central Thai" have become more common, the older term, "Siamese", is still used by linguists, especially when it is being distinguished from other Tai languages (Diller 2008:6 ...
version based on the 2016 ICD-10. An unusual feature of the index of ICD-10-TM is that it is bilingual, containing both Thai and English trails.


United Kingdom

ICD-10 was first mandated for use in the UK in 1995. In 2010 the UK Government made a commitment to update the UK version of ICD-10 every three years. On April 1, 2016, following a year's delay, ICD-10 5th EditionThe numbering system of editions only refers to those used in the UK; not those issued by WHO. For example, whilst the 5th edition is based on ICD-10 version:2016, the 4th edition was based on the version from 2010 (skipping the versions of ICD-10 from 2014 and 2015). replaced the 4th Edition as the mandated diagnostic classification within the UK, and remains the current version for use within the UK.


United States

For disease reporting, the US utilizes its own national variant of ICD-10 called the ICD-10 Clinical Modification (ICD-10-CM). A procedural classification called
ICD-10 Procedure Coding System The ICD-10 Procedure Coding System (ICD-10-PCS) is a US system of medical classification used for procedural codes, procedural coding. The Centers for Medicare and Medicaid Services, the agency responsible for maintaining the inpatient procedure c ...
(ICD-10-PCS)Although named ICD-10-PCS, this volume is not based on any of the WHO-FIC publications. has also been developed for capturing inpatient procedures. The ICD-10-CM and ICD-10-PCS were developed by the
Centers for Medicare and Medicaid Services The Centers for Medicare & Medicaid Services (CMS) is a federal agency within the United States Department of Health and Human Services (HHS) that administers the Medicare program and works in partnership with state governments to administer ...
(CMS) and the
National Center for Health Statistics The National Center for Health Statistics (NCHS) is a U.S. government agency that provides statistical information to guide actions and policies to improve the public health of the American people. It is a unit of the Centers for Disease Control ...
(NCHS). There are over 70,000 ICD-10-PCS procedure codes and over 69,000 ICD-10-CM diagnosis codes, compared to about 3,800 procedure codes and roughly 14,000 diagnosis codes found in the previous ICD-9-CM. There was much controversy when the transition from the ICD-9-CM to the ICD-10-CM was first announced in the US. Many providers were concerned about the vast number of codes being added, the complexity of the new coding system, and the costs associated with the transition. The
Centers for Medicare and Medicaid Services The Centers for Medicare & Medicaid Services (CMS) is a federal agency within the United States Department of Health and Human Services (HHS) that administers the Medicare program and works in partnership with state governments to administer ...
(CMS) weighed these concerns against the benefits of having more accurate data collection, clearer documentation of diagnoses and procedures, and more accurate claims processing. CMS decided the financial and public health cost associated with continuing to use the ICD-9-CM was too high and mandated the switch to ICD-10-CM. The deadline for the United States to begin using ICD-10-CM for diagnosis coding and Procedure Coding System
ICD-10-PCS The ICD-10 Procedure Coding System (ICD-10-PCS) is a US system of medical classification used for procedural coding. The Centers for Medicare and Medicaid Services, the agency responsible for maintaining the inpatient procedure code set in the U. ...
for inpatient hospital procedure coding was set at October 1, 2015, a year later than the previous 2014 deadline. Before the 2014 deadline, the previous deadline had been a year before that on October 1, 2013. All
HIPAA The Health Insurance Portability and Accountability Act of 1996 (HIPAA or the Kennedy– Kassebaum Act) is a United States Act of Congress enacted by the 104th United States Congress and signed into law by President Bill Clinton on August 21, ...
"covered entities" were required to make the change; a pre-requisite to ICD-10-CM is the adoption of EDI Version 5010 by January 1, 2012. Enforcement of 5010 transition by the
Centers for Medicare & Medicaid Services The Centers for Medicare & Medicaid Services (CMS) is a federal agency within the United States Department of Health and Human Services (HHS) that administers the Medicare program and works in partnership with state governments to administer M ...
(CMS), however, was postponed by CMS until March 31, 2012, with the federal agency citing numerous factors, including slow software upgrades. The implementation of ICD-10-CM has been subject to previous delays. In January 2009, the date was pushed back to October 1, 2013, rather than an earlier proposal of October 1, 2011. Two common complaints in the United States about the ICD-10-CM are 1) the long list of potentially relevant codes for a given condition (such as
rheumatoid arthritis Rheumatoid arthritis (RA) is a long-term autoimmune disorder that primarily affects synovial joint, joints. It typically results in warm, swollen, and painful joints. Pain and stiffness often worsen following rest. Most commonly, the wrist and h ...
) which can be confusing and reduce efficiency and 2) the assigned codes for seldom seen conditions (e.g. W55.22XA: Struck by cow, initial encounter; and V91.07XA: Burn due to water-skis on fire, initial encounter).


Criticism

The expansion of healthcare delivery systems and changes in global health trends prompted a need for codes with improved clinical accuracy and specificity. The alphanumeric coding in ICD-10 is an improvement from ICD-9 which had a limited number of codes and a restrictive structure. Early concerns in the implementation of ICD-10 included the cost and the availability of resources for training healthcare workers and professional coders.


See also

* ''
Diagnostic and Statistical Manual of Mental Disorders The ''Diagnostic and Statistical Manual of Mental Disorders'' (''DSM''; latest edition: ''DSM-5-TR'', published in March 2022) is a publication by the American Psychiatric Association (APA) for the classification of mental disorders using a com ...
'', used in
psychiatry Psychiatry is the medical specialty devoted to the diagnosis, treatment, and prevention of deleterious mental disorder, mental conditions. These include matters related to cognition, perceptions, Mood (psychology), mood, emotion, and behavior. ...
**
DSM-5 The ''Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition'' (DSM-5), is the 2013 update to the '' Diagnostic and Statistical Manual of Mental Disorders'', the taxonomic and diagnostic tool published by the American Psychiat ...
: its current version


Notes


References


External links

*
ICD-10 online browser
(WHO)
ICD-10 online training direct access
(WHO)
ICD-11 Home Page
{{Medical classification International Classification of Diseases