ICD-10-CM > O00-O9A > O30-O48 > O44 > O44.4 O44.4 Low lying placenta NOS or without hemorrhage Non-Billable/Non-Specific Applicable To Low implantation of placenta NOS or without hemorrhage Codes O44.40Low lying placenta NOS or without hemorrhage, unspecified trimesterO44.41Low lying placenta NOS or without hemorrhage, first trimesterO44.42Low lying placenta NOS or without hemorrhage, second trimesterO44.43Low lying placenta NOS or without hemorrhage, third trimester