I1A
Non-billableOther 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
What this means — in plain language
MedlinePlus · NIHWhat is blood pressure? Blood pressure is the force of your blood pushing against the walls of your arteries. Each time your heart beats, it pumps blood into the arteries. Your blood pressure is highest when your heart beats, pumping the blood. This is called systolic pressure. When your heart is at rest, between beats, your blood pressure falls. This is called diastolic pressure. Your blood pressure reading uses…
Read more about High Blood Pressure at MedlinePlus ↗Source: U.S. National Library of Medicine (MedlinePlus). Informational only — not medical advice.
Frequently asked questions
Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.
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