An EVR is defined as software running on a computer system that allows the recording of veterinary history, physical examination notes, laboratory results, surgical notes, diagnoses, and treatment. The function of an EVR parallels that of a point-of-care system in human patients. Veterinary practice is primarily a cash business; hence, third-party, payer-oriented coding schemes similar to the International Classification of Disease (ICD) codes for human disease are not used. Nevertheless, EVRs may be designed to be compatible with, and accept, a controlled vocabulary, most often the Nomenclature of Veterinary Diseases and Operations (SNOVDO). SNOMED-CT codes for veterinary medicine supersede the now obsolete SNOVDO.
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