2025
ICD-10-CM
Diagnosis
Code

Z3A Weeks of gestation

  • Non-billable
  • 2016–2025

Z3A is a non-billable/non-specific diagnosis code from the 2025 ICD-10-CM used to classify the following condition: Weeks of gestation.

Notes

  • 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

  • Obstetric condition or encounter for delivery (O09-O60, O80-O82)

Codes

Versions

  1. 2025

    No changes

  2. 2024

    No changes

  3. 2023

    No changes

  4. 2022

    Code changed

    • Code first

        • complications of pregnancy, childbirth and the puerperium (O09-O9A)
        • obstetric condition or encounter for delivery (O09-O60, O80-O82)
  5. 2021

    No changes

  6. 2020

    No changes

  7. 2019

    No changes

  8. 2018

    Code changed

    • Code first

        • complications of pregnancy, childbirth and the puerperium (O00-O9A)
        • complications of pregnancy, childbirth and the puerperium (O09-O9A)
  9. 2017

    Code changed

    • Notes

        • Codes from category Z3A are for use, only on the maternal record, to indicate the weeks of gestation of the pregnancy.
        • Codes from category Z3A are for use, only on the maternal record, to indicate the weeks of gestation of the pregnancy, if known.
  10. 2016

    New code