Current
Z3A — Weeks of gestation
Part of Chapter 21: Factors influencing health status and contact with health services , block Persons encountering health services in circumstances related to reproduction (Z30-Z39) .
Official Notes
Note
Codes from category Z3A are for use, only on the maternal record, to indicate the weeks of gestation of the pregnancy, if known.
Code First
obstetric condition or encounter for delivery (O09-O60, O80-O82, O94-O9A)
Child Codes
- Z3A.0 Weeks of gestation of pregnancy, unspecified or less than 10 weeks Has subcodes
- Z3A.1 Weeks of gestation of pregnancy, weeks 10-19 Has subcodes
- Z3A.2 Weeks of gestation of pregnancy, weeks 20-29 Has subcodes
- Z3A.3 Weeks of gestation of pregnancy, weeks 30-39 Has subcodes
- Z3A.4 Weeks of gestation of pregnancy, weeks 40 or greater Has subcodes
FY 2027 effective October 1, 2026 · CDC NCHS and CMS