2026 ICD-10-CM Diagnosis Code I13.0Hypertensive heart and chronic kidney disease with heart failure and stage 1 through stage 4 chronic kidney disease, or unspecified chronic kidney disease

ICD-10-CM Codes›I00–I99›I10-I1A›I13

ICD-10-CM I13.0
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

I13.0 is a billable ICD-10-CM diagnosis code for hypertensive heart and chronic kidney disease with heart failure and stage 1 through stage 4 chronic kidney disease, or unspecified chronic kidney disease. 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 hypertensive heart AND chronic kidney disease with congestive heart failure. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Chronic kidney disease, 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
I13.0
Billable Status
Yes — Valid for Submission
Code Describes
Hypertensive heart and chronic kidney disease with heart failure and stage 1 through stage 4 chronic kidney disease, or unspecified chronic kidney disease
Short Description
Hyp hrt & chr kdny dis w hrt fail and stg 1-4/unsp chr kdny
Parent Code
I13
Hypertensive heart and chronic kidney disease

Code Classification

ChapterI00–I99Diseases of the circulatory system
SectionI10-I1AHypertensive diseases
CategoryI13Hypertensive heart and chronic kidney disease
This CodeI13.0Hypertensive heart and chronic kidney disease with heart failure and stage 1 through stage 4 chronic kidney disease, or unspecified chronic kidney disease

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Hypertensive heart AND chronic kidney disease with congestive heart failure
  • Hypertensive heart AND renal disease complicating AND/OR reason for care during childbirth
  • Hypertensive heart AND renal disease in obstetric context
  • Hypertensive heart and renal disease with heart failure
  • Hypertensive heart disease complicating AND/OR reason for care during childbirth
  • Hypertensive renal disease complicating AND/OR reason for care during childbirth
  • Hypertensive renal disease in obstetric context

Tabular List NotesGuidance

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

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)
      • cardiorenal (disease)
        • with heart failure
    • Hypertension, hypertensive(accelerated) (benign) (essential) (idiopathic) (malignant) (systemic)
      • cardiorenal (disease)
        • with heart failure
          • with stage 1 through stage 4 chronic kidney disease

Clinical ClassificationClinical

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

CCSR GEN003
Chronic kidney disease
Default principal diagnosis: inpatient No · outpatient No
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

Chronic Kidney Disease

You have two kidneys, each about the size of your fist. Their main job is to filter your blood. They remove wastes and extra water, which become urine. They also keep the body's chemicals balanced, help control blood pressure, and make hormones.

Read the full article at MedlinePlus

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

Convert I13.0 to ICD-9-CMHistory

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

ICD-9-CM
404.01 Mal hyp ht/kd I-IV w hf
Approximate The match is approximate rather than exact.
ICD-9-CM
404.11 Ben hyp ht/kd I-IV w hf
Approximate The match is approximate rather than exact.
ICD-9-CM
404.91 Hyp ht/kd NOS I-IV w hf
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 I13.0Overview

Is I13.0 (Hypertensive heart and chronic kidney disease) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report hypertensive heart and chronic kidney disease with heart failure and stage 1 through stage 4 chronic kidney disease, or unspecified chronic kidney disease on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

What MS-DRG does I13.0 group to?

When hypertensive heart and chronic kidney disease with heart failure and stage 1 through stage 4 chronic kidney disease, or unspecified chronic kidney disease 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 I13.0?

Under the General Equivalence Mappings, hypertensive heart and chronic kidney disease with heart failure and stage 1 through stage 4 chronic kidney disease, or unspecified chronic kidney disease converts to ICD-9-CM 404.01 (mal hyp ht/kd I-IV w hf), 404.11 (ben hyp ht/kd I-IV w hf), and 404.91 (hyp ht/kd NOS I-IV w hf). 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.