Is I1A a billable code?
No. I1A is a header code that groups 1 more specific codes. Use one of the billable codes listed on this page instead.
ICD-10-CM FY2027 diagnosis code
I1A: Other hypertension
Header code: not billableValid for dates of service October 1, 2026 to September 30, 2027
I1A groups related diagnoses under other hypertension. It cannot be used on a claim by itself. Choose the billable code below that matches the patient's record.
Billable codes under I1A
I1A questions
What does I1A mean?
I1A is the ICD-10-CM code for Other hypertension. It is in chapter 9, Diseases of the circulatory system (I00-I99).
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.