ICD-10-CM > O00-O9A > O20-O29 > O26 > O26.8 > O26.84 O26.84 Uterine size-date discrepancy complicating pregnancy Non-Billable/Non-Specific Type 1 Excludes encounter for suspected problem with fetal growth ruled out (Z03.74) Codes O26.841Uterine size-date discrepancy, first trimesterO26.842Uterine size-date discrepancy, second trimesterO26.843Uterine size-date discrepancy, third trimesterO26.849Uterine size-date discrepancy, unspecified trimester