ICD-10-CM > O00-O9A > O85-O92 > O92 > O92.0 > O92.01 O92.01 Retracted nipple associated with pregnancy Non-Billable/Non-Specific Codes O92.011Retracted nipple associated with pregnancy, first trimesterO92.012Retracted nipple associated with pregnancy, second trimesterO92.013Retracted nipple associated with pregnancy, third trimesterO92.019Retracted nipple associated with pregnancy, unspecified trimester