O47.0 - False labor before 37 completed weeks of gestation
O47.02 - False labor before 37 completed weeks of gestation, second trimester
O47.00 - False labor before 37 completed weeks of gestation, unspecified trimester
O47.03 - False labor before 37 completed weeks of gestation, third trimester
O47.1 - False labor at or after 37 completed weeks of gestation
O75.82 - Onset (spontaneous) of labor after 37 completed weeks of gestation but before 39 completed weeks gestation, with delivery by (planned) cesarean section
Z3A.0 - Weeks of gestation of pregnancy, unspecified or less than 10 weeks
Z3A.1 - Weeks of gestation of pregnancy, weeks 10-19
Z3A.2 - Weeks of gestation of pregnancy, weeks 20-29
Z3A.3 - Weeks of gestation of pregnancy, weeks 30-39
P07.20 - Extreme immaturity of newborn, unspecified weeks of gestation
O42.10 - Premature rupture of membranes, onset of labor more than 24 hours following rupture, unspecified weeks of gestation
O42.00 - Premature rupture of membranes, onset of labor within 24 hours of rupture, unspecified weeks of gestation
O42.90 - Premature rupture of membranes, unspecified as to length of time between rupture and onset of labor, unspecified weeks of gestation
Z3A.4 - Weeks of gestation of pregnancy, weeks 40 or greater
P07.21 - Extreme immaturity of newborn, gestational age less than 23 completed weeks
P07.22 - Extreme immaturity of newborn, gestational age 23 completed weeks
P07.23 - Extreme immaturity of newborn, gestational age 24 completed weeks
P07.24 - Extreme immaturity of newborn, gestational age 25 completed weeks
P07.25 - Extreme immaturity of newborn, gestational age 26 completed weeks
P07.26 - Extreme immaturity of newborn, gestational age 27 completed weeks
Z3A.00 - Weeks of gestation of pregnancy not specified
