ICD-10-CM > O00-O9A > O94-O9A > O99 > O99.8 > O99.81 O99.81 Abnormal glucose complicating pregnancy, childbirth and the puerperium Non-Billable/Non-Specific Type 1 Excludes gestational diabetes (O24.4-) Codes O99.810Abnormal glucose complicating pregnancyO99.814Abnormal glucose complicating childbirthO99.815Abnormal glucose complicating the puerperium