O13Header code — not billable
Gestational [pregnancy-induced] hypertension without significant proteinuria
Short description: Gestational hypertension without significant proteinuria
- Chapter
- 15. Pregnancy, childbirth and the puerperium
- Category
- O13
- Effective date
- October 1, 2026
Related codes in category O13
O13.1Gestational htn w/o significant proteinuria, first trimesterYesO13.2Gestatnl htn w/o significant proteinuria, second trimesterYesO13.3Gestational htn w/o significant proteinuria, third trimesterYesO13.4Gestatnl htn without significant protein, comp childbirthYesO13.5Gestatnl htn without significant protein, comp the puerpYesO13.9Gestational htn w/o significant proteinuria, unsp trimesterYes
Frequently asked questions
What is ICD-10 code O13?
O13 is an ICD-10-CM diagnosis code for Gestational [pregnancy-induced] hypertension without significant proteinuria.
Is O13 a billable code?
No. O13 is a category/header code, not billable on its own — use one of its more specific child codes instead.
What ICD-10-CM chapter is O13 in?
O13 falls under Chapter 15: Pregnancy, childbirth and the puerperium.
When did O13 become effective?
O13 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.
What other codes are related to O13?
O13 belongs to category O13, which includes 6 other codes — see the related codes list on this page.
ICD-10-CM data maintained by CDC/CMS (public domain). Always verify codes with authoritative sources before making coding or billing decisions.