Z3A.01 Less than 8 weeks gestation of pregnancy
ICD-10-CM · CMS code reference
Official ICD-10-CM description: Less than 8 weeks gestation of pregnancy
Coding notes
From the ICD-10-CM FY2027 (effective October 1, 2026) tabular list. Notes on a parent code or category apply here too.
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
Code the underlying condition first, then this code.
- obstetric condition or encounter for delivery (O09-O60, O80-O82, O94-O9A)
Related codes
Z3A.00Weeks of gestation of pregnancy not specified ICD-10-CMZ3A.088 weeks gestation of pregnancy ICD-10-CMZ3A.099 weeks gestation of pregnancy ICD-10-CMZ3A.1010 weeks gestation of pregnancy ICD-10-CMZ3A.1111 weeks gestation of pregnancy ICD-10-CMZ3A.1212 weeks gestation of pregnancy ICD-10-CMZ3A.1313 weeks gestation of pregnancy ICD-10-CMZ3A.1414 weeks gestation of pregnancy ICD-10-CM
Common questions
Is Z3A.01 a billable code?
Yes. Z3A.01 is a billable ICD-10-CM code in the ICD-10-CM FY2027 (effective October 1, 2026) code set.