ICD-10-CM > O00-O9A > O85-O92 > O88 > O88.3 > O88.31 O88.31 Pyemic and septic embolism in pregnancy Non-Billable/Non-Specific Codes O88.311Pyemic and septic embolism in pregnancy, first trimesterO88.312Pyemic and septic embolism in pregnancy, second trimesterO88.313Pyemic and septic embolism in pregnancy, third trimesterO88.319Pyemic and septic embolism in pregnancy, unspecified trimester