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Medical classification

Medical classification, or medical coding, is the process of transforming descriptions of medical diagnoses and procedures into universal medical code numbers. The diagnoses and procedures are usually taken from a variety of sources within the medical record, such as the transcription of the doctor's notes, laboratory results, radiologic results, and other sources. Diagnosis codes are used to track diseases, whether they are everyday diseases such as diabetes mellitus and heart disease, to contagious diseases such as norovirus, the flu, and athlete's foot. These diagnosis and procedure codes are used by government health programs, private health insurance companies, workers' compensation carriers and others.

Medical classification systems are used for a variety of applications in medicine and medical informatics

  • statistical analysis of diseases and therapeutic actions
  • reimbursement, e.g. based on DRGs
  • knowledge-based and decision support systems
  • direct surveillance of epidemic or pandemic outbreaks


Types of classification

  • Diagnostic codes
  • Procedural codes
  • Pharmaceutical codes
  • Topographical codes

List of medical classification systems

Specialized for medicine

Part of WHO Family of International Classifications (WHO-FIC) [1]

Reference Classifications
Related Classifications
Derived Classifications
  • International Classification of Diseases for Oncology, Third Edition (ICD-O-3)
  • ICD-10 for Mental and Behavioural Disorders [7]
  • Application of the International Classification of Diseases to Dentistry and Stomatology, 3rd Edition (ICD-DA) [8]
  • Application of the International Classification of Diseases to Neurology (ICD-10-NA) [9]
  • International Classification of Functioning, Disability and Health for Children and Youth (ICF-CY) [10]


Library classification that have medical components

  • Dewey Decimal System and Universal Decimal Classification (section 610-620)
  • National Library of Medicine classification

See also

This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Medical_classification". A list of authors is available in Wikipedia.
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