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I10

Billable

Essential (primary) hypertension

I10 is the ICD-10-CM code for Essential (primary) hypertension. It is a billable, specific code valid for reimbursement.

Status
Billable
Chapter
I00-I99
Edition
FY2026

I00-I99 Diseases of the circulatory system

What this means — in plain language

MedlinePlus · NIH

What 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 ↗
Hypertension ↗

Source: U.S. National Library of Medicine (MedlinePlus). Informational only — not medical advice.

Includes

  • •high blood pressure
  • •hypertension (arterial) (benign) (essential) (malignant) (primary) (systemic)

Excludes1 — not coded here

  • •hypertensive disease complicating pregnancy, childbirth and the puerperium (O10-O11, O13-O16)

Excludes2 — not included here

  • •essential (primary) hypertension involving vessels of brain (I60-I69)
  • •essential (primary) hypertension involving vessels of eye (H35.0-)

Medications indicated for this condition

FDA labeling

Drugs whose FDA labeling lists this condition's category among its indications. Informational only — not a treatment recommendation or medical advice.

Conditions mapped to this code

MedlinePlus · NIH
High Blood Pressure

Plain-language health-topic references grounded in MedlinePlus (NIH/NLM).

Frequently asked questions

What is ICD-10 code I10?
I10 is the ICD-10-CM code for "Essential (primary) hypertension". It falls under I00-I99 Diseases of the circulatory system.
Is I10 a billable code?
Yes — I10 is a billable, specific ICD-10-CM code valid for reimbursement.
What is excluded from I10?
Excludes1 (not coded here): hypertensive disease complicating pregnancy, childbirth and the puerperium (O10-O11, O13-O16).

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

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