O13 is a non-billable/non-specific diagnosis code from the 2026 ICD-10-CM used to classify the following condition: Gestational [pregnancy-induced] hypertension without significant proteinuria.
Gestational hypertension NOS
Transient hypertension of pregnancy
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Gestational [pregnancy-induced] hypertension without significant proteinuria, first trimester
Gestational [pregnancy-induced] hypertension without significant proteinuria, second trimester
Gestational [pregnancy-induced] hypertension without significant proteinuria, third trimester
Gestational [pregnancy-induced] hypertension without significant proteinuria, complicating childbirth
Gestational [pregnancy-induced] hypertension without significant proteinuria, complicating the puerperium
Gestational [pregnancy-induced] hypertension without significant proteinuria, unspecified trimester
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