Z3A: Weeks of gestation notes Codes from category Z3A are for use, only on the maternal record, to indicate the weeks of gestation of the pregnancy, if known. codeFirst obstetric condition or encounter for delivery (O09-O60, O80-O82) |
| 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 |
| Z3A.4: Weeks of gestation of pregnancy, weeks 40 or greater |