ICD-10-CM > R00-R99 > R70-R79 > R73 R73 Elevated blood glucose level Non-Billable/Non-Specific Type 1 Excludes diabetes mellitus (E08-E13)diabetes mellitus in pregnancy, childbirth and the puerperium (O24.-)neonatal disorders (P70.0-P70.2)postsurgical hypoinsulinemia (E89.1) Codes R73.0Abnormal glucoseR73.01Impaired fasting glucoseR73.02Impaired glucose tolerance (oral)R73.03PrediabetesR73.09Other abnormal glucoseR73.9Hyperglycemia, unspecified