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The ICD classifies diseases recorded on many types of health and vital records, including death certificates and hospital records.
Information about the International Classification of Diseases, Ninth Revision, Clinical Modification (ICD-9-CM) is available at http://www.cdc.gov/nchs/about/otheract/icd9/abticd9.htm
An online version of the ICD-10 of the International Classification of Diseases, Tenth Revision (ICD-10) is available from the World Health Organization at http://www.who.int/classifications/apps/icd/icd10online/. To order the ICD-10, visit http://www.cdc.gov/nchs/about/major/dvs/icd10des.htm
Return to topCPT codes are for services provided by doctors and other healthcare services.
CPT - Fourth Edition, as contained in CPT Code/Relative Value Search, is available at
https://catalog.ama-assn.org/Catalog/cpt/cpt_search.jsp?checkXwho=done
CPT Codes Mapped to CVX (Vaccines Administered) Codes are available at http://www.cdc.gov/vaccines/programs/iis/stds/cpt.htm
Return to topThe DSM-IV-TR is provides criteria for diagnosing psychiatric diseases.
It is published by the American Psychiatric Association, and is available at http://www.psychiatryonline.com/resourceTOC.aspx?resourceID=1
Return to topThe CDT, produced by the American Dental Association, is the official coding used by dentists.
Information about the CDT is available at http://www.ada.org/prof/resources/topics/cdt/index.asp
Return to topDRGs are a classification system that groups patients according to diagnosis, type of treatment, age, and other relevant criteria. Under the prospective payment system, hospitals are paid a set fee for treating patients in a single DRG category, regardless of the actual cost of care for the individual. DRGs were originally developed for Medicare (Centers for Medicare and Medicaid).
DRGs are available at http://www.cms.hhs.gov/AcuteInpatientPPS/FFD/list.asp#TopOfPage
Return to topHCUPNet contains health statistics and information on hospital inpatient and emergency department visits.
HCUP is produced by the US Agency for Healthcare Research and Quality (AHRQ).
Instructions are available at http://hcup.ahrq.gov/HCUPnet.asp
Return to topHCPCS is divided into two subsystems: Level I and Level II.
Level I contains the Current Procedural Terminology (CPT). Level II identifies products, supplies and services not included in the CPT codes. Examples include ambulance services, durable medical equipment, and supplies when used outside a doctor's office.
The HCPCS, is available at http://www.cms.hhs.gov/MedHCPCSGenInfo/
Return to topThe UMLS links different names and views of the same concept and identifies useful relationships between them.
Source vocabularies (including codes) and information about the UMLS is available at http://www.nlm.nih.gov/research/umls/
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http://www.nlm.nih.gov/services/medcodes
Last reviewed: 04 May 2009
Last updated: 04 May 2009
First published: 05 June 2008
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