O13
⚠ Non-billable
Gestational [pregnancy-induced] hypertension without significant proteinuria
ICD-10-CM · FY2026 · Pregnancy, Childbirth and the Puerperium
Code
O13
System
ICD-10-CM
Billable
No — use specific code
Effective
FY2026
Chapter
Pregnancy, Childbirth and the Puerperium
Source
CMS / CDC NCHS
⚠ Verify before billing. Confirm against the current CMS/NCHS ICD-10-CM files and your payer's rules before claims submission.
Frequently asked questions
What is ICD-10 code O13?
ICD-10-CM code O13 represents Gestational [pregnancy-induced] hypertension without significant proteinuria. It is a non-billable header code requiring a more specific subcategory in the Pregnancy, Childbirth and the Puerperium chapter, effective October 1, 2025 – September 30, 2026.
Is O13 billable?
No. O13 is a non-billable header. Select a more specific subcategory for claims submission.
What chapter is O13 in?
O13 belongs to the Pregnancy, Childbirth and the Puerperium chapter (O00–O9A) of ICD-10-CM.
Related codes in the O13 category
O13.1
Gestational [pregnancy-induced] hypertension without significant proteinuria, first trimester
Billable
O13.2
Gestational [pregnancy-induced] hypertension without significant proteinuria, second trimester
Billable
O13.3
Gestational [pregnancy-induced] hypertension without significant proteinuria, third trimester
Billable
O13.4
Gestational [pregnancy-induced] hypertension without significant proteinuria, complicating childbirth
Billable
O13.5
Gestational [pregnancy-induced] hypertension without significant proteinuria, complicating the puerperium
Billable
O13.9
Gestational [pregnancy-induced] hypertension without significant proteinuria, unspecified trimester
Billable
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