Is O10 a billable code?
No. O10 is a header code that groups 36 more specific codes. Use one of the billable codes listed on this page instead.
ICD-10-CM FY2027 diagnosis code
O10: Pre-existing hypertension complicating pregnancy, childbirth and the puerperium
Header code: not billableValid for dates of service October 1, 2026 to September 30, 2027
O10 groups related diagnoses under pre-existing hypertension complicating pregnancy, childbirth and the puerperium. It cannot be used on a claim by itself. Choose the billable code below that matches the patient's record.
Billable codes under O10
- O10.011Pre-existing essential hypertension complicating pregnancy, first trimester
- O10.012Pre-existing essential hypertension complicating pregnancy, second trimester
- O10.013Pre-existing essential hypertension complicating pregnancy, third trimester
- O10.019Pre-existing essential hypertension complicating pregnancy, unspecified trimester
- O10.02Pre-existing essential hypertension complicating childbirth
- O10.03Pre-existing essential hypertension complicating the puerperium
- O10.111Pre-existing hypertensive heart disease complicating pregnancy, first trimester
- O10.112Pre-existing hypertensive heart disease complicating pregnancy, second trimester
- O10.113Pre-existing hypertensive heart disease complicating pregnancy, third trimester
- O10.119Pre-existing hypertensive heart disease complicating pregnancy, unspecified trimester
- O10.12Pre-existing hypertensive heart disease complicating childbirth
- O10.13Pre-existing hypertensive heart disease complicating the puerperium
- O10.211Pre-existing hypertensive chronic kidney disease complicating pregnancy, first trimester
- O10.212Pre-existing hypertensive chronic kidney disease complicating pregnancy, second trimester
- O10.213Pre-existing hypertensive chronic kidney disease complicating pregnancy, third trimester
- O10.219Pre-existing hypertensive chronic kidney disease complicating pregnancy, unspecified trimester
- O10.22Pre-existing hypertensive chronic kidney disease complicating childbirth
- O10.23Pre-existing hypertensive chronic kidney disease complicating the puerperium
- O10.311Pre-existing hypertensive heart and chronic kidney disease complicating pregnancy, first trimester
- O10.312Pre-existing hypertensive heart and chronic kidney disease complicating pregnancy, second trimester
- O10.313Pre-existing hypertensive heart and chronic kidney disease complicating pregnancy, third trimester
- O10.319Pre-existing hypertensive heart and chronic kidney disease complicating pregnancy, unspecified trimester
- O10.32Pre-existing hypertensive heart and chronic kidney disease complicating childbirth
- O10.33Pre-existing hypertensive heart and chronic kidney disease complicating the puerperium
- O10.411Pre-existing secondary hypertension complicating pregnancy, first trimester
- O10.412Pre-existing secondary hypertension complicating pregnancy, second trimester
- O10.413Pre-existing secondary hypertension complicating pregnancy, third trimester
- O10.419Pre-existing secondary hypertension complicating pregnancy, unspecified trimester
- O10.42Pre-existing secondary hypertension complicating childbirth
- O10.43Pre-existing secondary hypertension complicating the puerperium
- O10.911Unspecified pre-existing hypertension complicating pregnancy, first trimester
- O10.912Unspecified pre-existing hypertension complicating pregnancy, second trimester
- O10.913Unspecified pre-existing hypertension complicating pregnancy, third trimester
- O10.919Unspecified pre-existing hypertension complicating pregnancy, unspecified trimester
- O10.92Unspecified pre-existing hypertension complicating childbirth
- O10.93Unspecified pre-existing hypertension complicating the puerperium
O10 questions
What does O10 mean?
O10 is the ICD-10-CM code for Pre-existing hypertension complicating pregnancy, childbirth and the puerperium. 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.