- Codes Description
- Z3A.20
20 weeks gestation of pregnancy
- Z3A.21
21 weeks gestation of pregnancy
- Z3A.22
22 weeks gestation of pregnancy
- Z3A.23
23 weeks gestation of pregnancy
- Z3A.24
24 weeks gestation of pregnancy
- Z3A.25
25 weeks gestation of pregnancy
- Z3A.26
26 weeks gestation of pregnancy
- Z3A.27
27 weeks gestation of pregnancy
- Z3A.28
28 weeks gestation of pregnancy
- Z3A.29
29 weeks gestation of pregnancy