Z3A.0
Header — not billableWeeks of gestation of pregnancy, unspecified or less than 10 weeks
The ICD-10 code for weeks of gestation of pregnancy, unspecified or less than 10 weeks is Z3A.0.
Z3A.0 is a non-billable header code. It groups related conditions but cannot be used on its own for reimbursement — select one of the 4 more specific codes below.
Documentation support
General coding-documentation guidance — not a substitute for payer-specific requirements or professional coding judgment.
- •This is a non-billable header code. Documentation must support a more specific child code before this diagnosis can be reported on a claim.
- •This code describes an unspecified presentation. If the medical record documents a more specific detail (e.g. laterality, type, or affected site), a more specific sibling code should be used instead — see Related codes below.
- •As a general rule, code to the highest level of specificity supported by the documentation in the medical record.
Related codes in this category
- Z3A.1Weeks of gestation of pregnancy, weeks 10-19non-billable header
- Z3A.2Weeks of gestation of pregnancy, weeks 20-29non-billable header
- Z3A.3Weeks of gestation of pregnancy, weeks 30-39non-billable header
- Z3A.4Weeks of gestation of pregnancy, weeks 40 or greaternon-billable header
- Z3A.0Weeks of gestation of pregnancy, unspecified or less than 10 weeksnon-billable header