O13: Gestational [pregnancy-induced] hypertension without significant proteinuria

Codes under O13 (Gestational [pregnancy-induced] hypertension without significant proteinuria). A ✓ marks a billable (fully specified) code; category codes without a ✓ are not billable on their own.

Code	Description	Billable
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	✓

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Informational only, not coding or medical advice. Verify against the official ICD-10-CM (FY2026) and your payer's guidelines.

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