O13 is a non-billable/non-specific diagnosis code from the 2025 ICD-10-CM used to classify the following condition: Gestational [pregnancy-induced] hypertension without significant proteinuria.
Includes
Gestational hypertension NOS
Transient hypertension of pregnancy
Codes
O13.1
Gestational [pregnancy-induced] hypertension without significant proteinuria, first trimester
O13.2
Gestational [pregnancy-induced] hypertension without significant proteinuria, second trimester
O13.3
Gestational [pregnancy-induced] hypertension without significant proteinuria, third trimester
O13.4
Gestational [pregnancy-induced] hypertension without significant proteinuria, complicating childbirth
O13.5
Gestational [pregnancy-induced] hypertension without significant proteinuria, complicating the puerperium
O13.9
Gestational [pregnancy-induced] hypertension without significant proteinuria, unspecified trimester
Versions
2025
No changes
2024
No changes
2023
No changes
2022
No changes
2021
No changes
2020
No changes
2019
No changes
2018
No changes
2017
Code changed
Includes
gestational hypertension NOS
- gestational hypertension NOS
- transient hypertension of pregnancy
2016
New code