Z3A.0 Weeks of gestation of pregnancy, unspecified or less than 10 weeksNon-billable header with 4 child codes.
Z3A.00 Weeks of gestation of pregnancy not specifiedZ3A.01 Less than 8 weeks gestation of pregnancyZ3A.08 8 weeks gestation of pregnancyZ3A.09 9 weeks gestation of pregnancyZ3A Weeks of gestationZ3A.0 Weeks of gestation of pregnancy, unspecified or less than 10 weeks (this code)Z3A.00 Weeks of gestation of pregnancy not specifiedZ3A.01 Less than 8 weeks gestation of pregnancyZ3A.08 8 weeks gestation of pregnancyZ3A.09 9 weeks gestation of pregnancyZ3A.1 Weeks of gestation of pregnancy, weeks 10-19