Z3A ICD-10-CM Code: Weeks of gestation
A clear reference for the official code description, hierarchy, and related coding information from the FY 2027 U.S. release.
Code definition
Official description
Z3AWeeks of gestation
ICD-10-CM diagnosis code · United States clinical modification
Classification
Where Z3A sits
- 1
Chapter —
ICD-10-CM
- 2
Section
Category information
- 3
Category Z3A
Weeks of gestation
- 4
Code Z3A
Weeks of gestation
More specific choices
Codes under Z3A
Z3A is a non-billable category. Choose the child code that best matches the documented diagnosis.
Documentation details
Notes for this code
Inclusion terms
No inclusion terms are listed for Z3A.
Code first
- obstetric condition or encounter for delivery (O09-O60, O80-O82, O94-O9A)
Use additional code
No “use additional code” instruction is listed for Z3A.
Excludes1
Conditions that should not be reported together with this code.
No Excludes1 note is listed for Z3A.
Excludes2
Conditions not included here that may be reported separately when present.
No Excludes2 note is listed for Z3A.
Transparency
Source and release
This reference is generated from Vero’s ICD-10-CM description, hierarchy, and code-note dataset. The visible content and structured data share that source.
Review the CDC/NCHS ICD-10-CM sourceCode-specific guidance
Frequently asked questions
What does ICD-10-CM code Z3A mean?
Z3A is the FY 2027 U.S. ICD-10-CM code for “Weeks of gestation.”
Is Z3A a billable or specific ICD-10-CM code?
No. Z3A has more specific child codes in the FY 2027 reference data. Select the code that matches the documentation and confirm the active code set and payer requirements.
Where is Z3A located in ICD-10-CM?
Z3A is listed in the ICD-10-CM classification, within its applicable ICD-10-CM section, under category Z3A, Weeks of gestation.
What coding notes are listed for Z3A?
No inclusion terms are listed for Z3A in this reference record. Code-first instructions: obstetric condition or encounter for delivery (O09-O60, O80-O82, O94-O9A). No Excludes1 note is listed. No Excludes2 note is listed.
Ready to transform your clinical documentation?
Join Vero and see how effortless documentation can be.
No credit card required
Cancel anytime