Z34 - Encounter for supervision of normal pregnancy
Z34.9 - Encounter for supervision of normal pregnancy, unspecified
Z34.90 - Encounter for supervision of normal pregnancy, unspecified, unspecified trimester
Z34.91 - Encounter for supervision of normal pregnancy, unspecified, first trimester
Z34.92 - Encounter for supervision of normal pregnancy, unspecified, second trimester
Z34.93 - Encounter for supervision of normal pregnancy, unspecified, third trimester