I1A

Non-billable

Other hypertension

I1A is the ICD-10-CM code for Other hypertension. It is a non-billable category code — use a more specific child code such as I1A.0 for billing.

Status
Header (non-billable)
Chapter
I00-I99
Subcodes
1
Edition
FY2026

I00-I99 Diseases of the circulatory system

No additional coding notes for this code.

Frequently asked questions

What is ICD-10 code I1A?
I1A is the ICD-10-CM code for "Other hypertension". It falls under I00-I99 Diseases of the circulatory system.
Is I1A a billable code?
No — I1A is a non-billable header code. Use a more specific child code (such as I1A.0) for billing.
What are the subcodes of I1A?
I1A has 1 more specific child code, including I1A.0.

Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.

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