ICD-10-CM I10 is the diagnosis code for Essential (primary) hypertension. This code falls under the section "Hypertensive diseases" within Chapter 9 â Diseases of the circulatory system (I00-I99). It is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. Medical coders and healthcare providers use this code to document and classify diagnoses in electronic health records, insurance claims, and clinical databases.
The following conditions should never be coded at the same time as I10. They are mutually exclusive:
The following conditions are not included in I10. If the patient has both, code each condition separately:
Understanding where I10 sits in the ICD-10-CM classification helps ensure proper coding:
Yes, I10 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
I10 is the ICD-10-CM diagnosis code for "Essential (primary) hypertension". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.
I10 is located in Section I10-I1A â "Hypertensive diseases" within Chapter 9 of the ICD-10-CM Tabular List.
Use I10 when the patients documented diagnosis matches "Essential (primary) hypertension" and the clinical documentation supports this level of specificity. Always verify with the latest ICD-10-CM guidelines and payer requirements.
The ICD-10-CM code for Essential (primary) hypertension is I10.
Yes, I10 can be used as a primary diagnosis code since it is billable and specific.
I10 is in Chapter 9 of the ICD-10-CM Tabular List.
Type 1 Excludes for I10 include: hypertensive disease complicating pregnancy, childbirth and the puerperium (O10-O11, O13-O16).
Yes, I10 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.