ICD-10-CM > O00-O9A > O94-O9A > O9A > O9A.1 O9A.1 Malignant neoplasm complicating pregnancy, childbirth and the puerperium Non-Billable/Non-Specific Applicable To Conditions in C00-C96 Use Additional code to identify neoplasm Type 2 Excludes maternal care for benign tumor of corpus uteri (O34.1-)maternal care for benign tumor of cervix (O34.4-) Codes O9A.11Malignant neoplasm complicating pregnancyO9A.111Malignant neoplasm complicating pregnancy, first trimesterO9A.112Malignant neoplasm complicating pregnancy, second trimesterO9A.113Malignant neoplasm complicating pregnancy, third trimesterO9A.119Malignant neoplasm complicating pregnancy, unspecified trimesterO9A.12Malignant neoplasm complicating childbirthO9A.13Malignant neoplasm complicating the puerperium