Table 1.

Diagnosis codes.

ICD-9 DX	790.21	Impaired fasting glucose
ICD-9 DX	790.22	Impaired glucose tolerance
ICD-9 DX	790.29	Other abnormal glucose
ICD-10 DX	R73.03 (effective 2017)	Prediabetes
ICD-10 DX	R73.01	Impaired fasting glucose
ICD-10 DX	R73.02	Impaired glucose tolerance
ICD-10 DX	R73.0	Abnormal glucose
ICD-10 DX	R73.09	Other abnormal glucose
ICD-10 DX	R73.9	Hyperglycemia, unspecified