Is Z3A.2 a billable code?
No. Z3A.2 is a header code that groups 10 more specific codes. Use one of the billable codes listed on this page instead.
ICD-10-CM FY2027 diagnosis code
Z3A.2: Weeks of gestation of pregnancy, weeks 20-29
Header code: not billableValid for dates of service October 1, 2026 to September 30, 2027
Z3A.2 groups related diagnoses under weeks of gestation of pregnancy, weeks 20-29. It cannot be used on a claim by itself. Choose the billable code below that matches the patient's record.
Billable codes under Z3A.2
- Z3A.2020 weeks gestation of pregnancy
- Z3A.2121 weeks gestation of pregnancy
- Z3A.2222 weeks gestation of pregnancy
- Z3A.2323 weeks gestation of pregnancy
- Z3A.2424 weeks gestation of pregnancy
- Z3A.2525 weeks gestation of pregnancy
- Z3A.2626 weeks gestation of pregnancy
- Z3A.2727 weeks gestation of pregnancy
- Z3A.2828 weeks gestation of pregnancy
- Z3A.2929 weeks gestation of pregnancy
Z3A.2 questions
What does Z3A.2 mean?
Z3A.2 is the ICD-10-CM code for Weeks of gestation of pregnancy, weeks 20-29. It is in chapter 22, Factors influencing health status and contact with health services (Z00-Z99).
Code titles come from the official ICD-10-CM files published by the CDC National Center for Health Statistics. Always check payer rules and the clinical record before billing.