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OPCS-4, or more formally OPCS Classification of Interventions and Procedures version 4,〔(【引用サイトリンク】website=TSO Shop )〕 is the procedural classification used by clinical coders within National Health Service (NHS) hospitals of NHS England, NHS Scotland, NHS Wales and Health and Social Care in Northern Ireland. It is based on the earlier Office of Population Censuses and Surveys Classification of Surgical Operations and Procedures (4th revision),〔(【引用サイトリンク】url=http://systems.hscic.gov.uk/data/clinicalcoding/codingstandards/opcs4/background )〕 and retains the OPCS abbreviation from this now defunct publication. OPCS-4 codifies operations, procedures and interventions performed during in-patient stays, day case surgery and some out-patient treatments in NHS hospitals. Though the code structure is different, as a code set, OPCS-4 is comparable to the American Medical Association's Current Procedural Terminology. As a publication, OPCS-4 is split into two volumes; a tabular list (Volume I) and an alphabetical index (Volume II).〔(【引用サイトリンク】url=http://systems.hscic.gov.uk/data/clinicalcoding/codingstandards/opcs4/opcs-4.7 )〕 An electronic version is also available.〔(【引用サイトリンク】url=http://systems.hscic.gov.uk/data/clinicalcoding/codingstandards/opcs4/eversion )〕 However, a number of supplementary publications are also used by coding staff. ==History== The first NHS procedural classification was published in 1987, by the Office of Population Censuses and Surveys (OPCS) as the ''Classification of Surgical Operations''. In 1992 the 4th revision was released as the ''OPCS Classification of Surgical Operations and Procedures (4th revision)'',〔 usually shorted to OPCS-4.2. Responsibility for the classifications used in the NHS, including OPCS-4, passed to the NHS Information Authority (NHS IA) when it formed in 1999. By 2003, the NHS IA had realised OPCS-4.2 no longer accurately reflected many of the procedures being performed in the UK healthcare system. As a medium term measure, a project to replace OPCS-4 with a more robust method of procedure coding was proposed and partially developed. Rather than using a sequence of codes to capture activity, the new classification would have used a single alphanumeric code up to 15 characters long. When the NHS IA was superseded by NHS Connecting for Health (NHS CFH) in 2005, the project was placed on indefinite hold, and a program of annual revisions to OPCS-4 was implemented. Much of the development work for the suspended project was reused to produce the initial expansion and enhancement of OPCS-4.2 to OPCS-4.3. However, OPCS-4.2 remained the mandated method of procedural classification in the NHS setting until March 2006.〔(【引用サイトリンク】url=http://systems.hscic.gov.uk/data/clinicalcoding/codingstandards/opcs4 )〕 Since the implementation of OPCS-4.3 in April 2006 there have been four further revisions to OPCS-4. Each becoming the mandated classification on 1 April in the year of publication. OPCS-4 version mandated for use (financial year)〔(【引用サイトリンク】url=http://www.datadictionary.nhs.uk/web_site_content/supporting_information/clinical_coding/opcs_classification_of_interventions_and_procedures.asp )〕 *Up to 31 March 2006 OPCS-4.2 *2006-7 OPCS-4.3 *2007-9 OPCS-4.4 *2009-11 OPCS-4.5 *2011-14 OPCS-4.6 *2014 OPCS-4.7 (until further notice)〔 Whilst additions to OPCS-4 are reviewed on an annual basis, the long term plan is to replace OPCS-4 with SNOMED CT.〔(【引用サイトリンク】url=http://webarchive.nationalarchives.gov.uk/+/www.dh.gov.uk/en/Managingyourorganisation/Financeandplanning/NHSFinancialReforms/DH_4127040 )〕 On 31 March 2013 NHS CFH ceased to exist. Since 1 April 2013, responsibility for revision and maintenance of OPCS-4 has been with the Health and Social Care Information Centre's Clinical Classifications Service.〔(【引用サイトリンク】url=http://systems.hscic.gov.uk/data/clinicalcoding/about )〕 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「OPCS-4」の詳細全文を読む スポンサード リンク
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