Z3A
Z3A: Weeks of gestation
Non-billable headerICD-10-CM
Z3A is a non-billable header ICD-10-CM code for weeks of gestation. It cannot be billed on its own: choose one of the more specific child codes below.
Code first
The underlying condition must be sequenced before this code.
Notes
Additional guidance from the ICD-10-CM tabular list.
- Codes from category Z3A are for use, only on the maternal record, to indicate the weeks of gestation of the pregnancy, if known.
Risk adjustment
No CMS-HCC V28 category: this code does not change a RAF score.
Code history
Unchanged in every release from FY2024 to FY2027.
Code to one of these instead Z3A
5 child codes. Green means billable.