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International Classification of Diseases (ICD)

The International Classification of Diseases (ICD) codes have been used in medicine for over a century. More recently, they have been adopted for the reporting of diagnoses on claims for medical services in the United States.

ICD Clinical Modification, Release 10 (ICD-10-CM) codes are the current standard for reporting diagnoses on HIPAA electronic transactions. ICD-10-CM is more detailed than its predecessor, ICD-9-CM, containing about 68,000 terms to ICD-9-CM's 13,000. It also contains more dental concepts, although not as many as found in SNODENT®.

The current complete edition of ICD-10-CM may be downloaded free of cost from the Centers for Disease Control National Center for Health Statistics (NCHS) site.  Another useful site,, provides a free, web-based quick reference tool for ICD-10-CM codes.


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American Dental Association
Department of Dental Informatics
Phone: 312.440.2500
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