Hypertensive heart disease (I11) ICD-10-CM
The I11 code range covers hypertensive heart disease with 3 ICD-10-CM diagnosis codes. 2 of them are billable and valid for claim submission in fiscal year 2026, and the category headers group them but cannot themselves be billed.
Includes
This note appears immediately under a three character code title to further define, or give examples of, the content of the category.
Codes in the I11 Range 3 codes · 2 billable
Clinical Terms in This Code Range
Definitions from the National Library of Medicine for conditions coded in the I11 range.
Cardiomegaly
Enlargement of the HEART, usually indicated by a cardiothoracic ratio above 0.50. Heart enlargement may involve the right, the left, or both HEART VENTRICLES or HEART ATRIA. Cardiomegaly is a nonspecific symptom seen in patients with chronic systolic heart failure (HEART FAILURE) or several forms of CARDIOMYOPATHIES.
Cardiomegaly, Exercise-Induced
Non-pathological heart enlargement and other remodeling in cardiac morphology and electrical circuitry found in individuals who participate in intense repeated exercises.
About the I11 Code Range
ICD-10 codes in the I11 category are used to identify types of hypertensive heart disease, which refers to heart conditions caused by high blood pressure. These codes distinguish between cases with and without heart failure, helping healthcare professionals accurately classify the impact of hypertension on the heart.
This section includes the general code I11 for hypertensive heart disease and more specific codes like I11.0, which covers hypertensive heart disease accompanied by heart failure. Common terms linked to I11.0 include benign hypertensive heart disease with congestive cardiac failure and hypertensive heart failure. The code I11.9 captures hypertensive heart disease without heart failure and is associated with various synonyms such as cardiomyopathy due to hypertension, hypertensive left ventricular hypertrophy, and hypertensive heart disease complicating pregnancy. Understanding these synonyms clarifies the correct ICD-10 code for hypertensive heart disease in different clinical scenarios, including pregnancy complications and organ enlargement due to hypertension.
Questions About This Page
How many billable codes are in the I11 range?
Of the 3 codes in this range, 2 are billable and valid for claim submission from October 1, 2025 through September 30, 2026. Category header codes group them but cannot be reported on claims.
What does the I11 range classify?
The range classifies hypertensive heart disease. Each code links to its own reference page with billing status, MS-DRG grouping, coding notes, and clinical information.
Related References
Source: CMS FY 2026 ICD-10-CM Tabular List and order file, effective October 1, 2025 through September 30, 2026.
