Is Z3A.4 a billable code?
No. Z3A.4 is a header code that groups 4 more specific codes. Use one of the billable codes listed on this page instead.
ICD-10-CM FY2027 diagnosis code
Z3A.4: Weeks of gestation of pregnancy, weeks 40 or greater
Header code: not billableValid for dates of service October 1, 2026 to September 30, 2027
Z3A.4 groups related diagnoses under weeks of gestation of pregnancy, weeks 40 or greater. It cannot be used on a claim by itself. Choose the billable code below that matches the patient's record.
Billable codes under Z3A.4
Z3A.4 questions
What does Z3A.4 mean?
Z3A.4 is the ICD-10-CM code for Weeks of gestation of pregnancy, weeks 40 or greater. 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.