2026 ICD-10-CM Diagnosis Code I11.0Hypertensive heart disease with heart failure

ICD-10-CM Codes›I00–I99›I10-I1A›I11

ICD-10-CM I11.0
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

I11.0 is a billable ICD-10-CM diagnosis code for hypertensive heart disease with heart failure. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 291 through 293. Coders also document this condition as benign hypertensive heart disease. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Heart failure and Hypertension with complications and secondary hypertension.

This medical diagnosis code is frequently used in Cardiology medical specialties to designate conditions such heart failure.

Code Identity

ICD-10-CM Code
I11.0
Billable Status
Yes — Valid for Submission
Code Describes
Hypertensive heart disease with heart failure
Short Description
Hypertensive heart disease with heart failure
Same as the full description in the CMS dataset.
Parent Code
I11
Hypertensive heart disease

Code Classification

ChapterI00–I99Diseases of the circulatory system
SectionI10-I1AHypertensive diseases
CategoryI11Hypertensive heart disease
This CodeI11.0Hypertensive heart disease with heart failure

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Benign hypertensive heart disease
  • Benign hypertensive heart disease with congestive cardiac failure
  • Hypertensive heart disease with congestive heart failure
  • Hypertensive heart failure
  • Malignant hypertensive heart disease
  • Malignant hypertensive heart disease with congestive heart failure

Tabular List NotesGuidance

Coding notes and annotation back-references applicable to this code.

Inclusion Terms

  • Hypertensive heart failure

Use Additional Code

  • code to identify type of heart failure I50

Index to Diseases and InjuriesGuidance

Alphabetical index entries that point to this code.

External Cause of Injuries IndexGuidance

References for this code in the External Cause of Injuries Index.

    • Hypertension, hypertensive(accelerated) (benign) (essential) (idiopathic) (malignant) (systemic)
      • with
        • heart failure (congestive)
    • Hypertension, hypertensive(accelerated) (benign) (essential) (idiopathic) (malignant) (systemic)
      • heart (disease) (conditions in I51.4-I51.9 due to hypertension)
        • with
          • heart failure (congestive)

Clinical ClassificationClinical

AHRQ’s CCSR groups this code into broader clinical categories.

CCSR CIR019
Heart failure
Default principal diagnosis: inpatient Yes · outpatient Yes
CCSR CIR008
Hypertension with complications and secondary hypertension
Default principal diagnosis: inpatient No · outpatient No

Patient EducationClinical

Heart Failure

Heart failure means that your heart can't pump enough oxygen-rich blood to meet your body's needs. Heart failure doesn't mean that your heart has stopped or is about to stop beating. But without enough blood flow, your organs may not work well, which can cause serious problems.

The full article covers:

  • What is heart failure?
  • What causes heart failure?
  • Who is more likely to develop heart failure?
  • What are the symptoms of heart failure?
  • What other problems does heart failure cause?
  • How is heart failure diagnosed?
  • What are the treatments for heart failure?
  • Can heart failure be prevented?

Read the full article at MedlinePlus

Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.

Convert I11.0 to ICD-9-CMHistory

The closest ICD-9-CM equivalents under the General Equivalence Mappings.

ICD-9-CM
402.01 Mal hypert hrt dis w hf
Approximate The match is approximate rather than exact.
ICD-9-CM
402.11 Benign hyp ht dis w hf
Approximate The match is approximate rather than exact.
ICD-9-CM
402.91 Hyp ht dis NOS w ht fail
Approximate The match is approximate rather than exact.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2025No changes
FY 2026CurrentCurrent code set, no changesEffective October 1, 2025 through September 30, 2026.

Questions About I11.0Overview

Is I11.0 (Hypertensive heart disease) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report hypertensive heart disease with heart failure on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

What MS-DRG does I11.0 group to?

When hypertensive heart disease with heart failure is the principal diagnosis on an inpatient stay, it groups to MS-DRG 291, 292, 293, with relative weights from 0.5660 to 1.2838 depending on complications. Higher weights mean higher Medicare reimbursement.

What is the ICD-9 equivalent of I11.0?

Under the General Equivalence Mappings, hypertensive heart disease with heart failure converts to ICD-9-CM 402.01 (mal hypert hrt dis w hf), 402.11 (benign hyp ht dis w hf), and 402.91 (hyp ht dis NOS w ht fail). The mapping is approximate, so confirm the match fits the documentation.

Footnotes

[1] Chronic - a chronic condition code indicates a condition lasting 12 months or longer and its effect on the patient based on one or both of the following criteria:

  • The condition results in the need for ongoing intervention with medical products,treatment, services, and special equipment
  • The condition places limitations on self-care, independent living, and social interactions.