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History of ICD-10
ICD-10-CM is the updated version of the ICD-9-CM code set currently used for coding diagnoses on all health care standard administrative transactions. The ICD-9 code set was developed by the World Health Organization (WHO) and has been in widespread use since 1988. The WHO produced an updated version, ICD-10, in 1992. The ICD-10-CM code set expands diagnosis codes by a factor of five, enabling greater specificity in the coding of diagnoses.
All physicians, other health care providers, and health plans are required to use the ICD-10-CM code set as the standard code set for coding diagnoses on all HIPAA standard transactions on October 1, 2015.
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