Is O13 a billable code?
No. O13 is a header code that groups 6 more specific codes. Use one of the billable codes listed on this page instead.
ICD-10-CM FY2027 diagnosis code
O13: Gestational [pregnancy-induced] hypertension without significant proteinuria
Header code: not billableValid for dates of service October 1, 2026 to September 30, 2027
O13 groups related diagnoses under gestational [pregnancy-induced] hypertension without significant proteinuria. It cannot be used on a claim by itself. Choose the billable code below that matches the patient's record.
Billable codes under O13
- O13.1Gestational [pregnancy-induced] hypertension without significant proteinuria, first trimester
- O13.2Gestational [pregnancy-induced] hypertension without significant proteinuria, second trimester
- O13.3Gestational [pregnancy-induced] hypertension without significant proteinuria, third trimester
- O13.4Gestational [pregnancy-induced] hypertension without significant proteinuria, complicating childbirth
- O13.5Gestational [pregnancy-induced] hypertension without significant proteinuria, complicating the puerperium
- O13.9Gestational [pregnancy-induced] hypertension without significant proteinuria, unspecified trimester
O13 questions
What does O13 mean?
O13 is the ICD-10-CM code for Gestational [pregnancy-induced] hypertension without significant proteinuria. It is in chapter 15, Pregnancy, childbirth and the puerperium (O00-O9A).
Code titles come from the official ICD-10-CM files published by the CDC National Center for Health Statistics. Always check payer rules and the clinical record before billing.