2026 ICD-10-CM Diagnosis Code I15.0Renovascular hypertension

ICD-10-CM Codes›I00–I99›I10-I1A›I15

ICD-10-CM I15.0
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

I15.0 is a billable ICD-10-CM diagnosis code for renovascular hypertension. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 304 through 305. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Hypertension with complications and secondary hypertension.

Code Identity

ICD-10-CM Code
I15.0
Billable Status
Yes — Valid for Submission
Code Describes
Renovascular hypertension
Short Description
Renovascular hypertension
Same as the full description in the CMS dataset.
Parent Code
I15
Secondary hypertension

Code Classification

ChapterI00–I99Diseases of the circulatory system
SectionI10-I1AHypertensive diseases
CategoryI15Secondary hypertension
This CodeI15.0Renovascular hypertension

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Benign hypertension
  • Benign secondary hypertension
  • Benign secondary renovascular hypertension
  • Goldblatt hypertension
  • Hypertensive crisis
  • Hypertensive emergency
  • Malignant hypertension
  • Malignant secondary hypertension
  • Malignant secondary renovascular hypertension
  • Renal arterial hypertension
  • Renovascular hypertension

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)
      • due to
        • renal disorders NEC
          • arterial
    • Hypertension, hypertensive(accelerated) (benign) (essential) (idiopathic) (malignant) (systemic)
      • due to
        • renovascular disorders
    • Hypertension, hypertensive(accelerated) (benign) (essential) (idiopathic) (malignant) (systemic)
      • renovascular
    • Hypertension, hypertensive(accelerated) (benign) (essential) (idiopathic) (malignant) (systemic)
      • secondary NEC
        • due to
          • renal disorders NEC
            • arterial
    • Hypertension, hypertensive(accelerated) (benign) (essential) (idiopathic) (malignant) (systemic)
      • secondary NEC
        • due to
          • renovascular disorders

Clinical ClassificationClinical

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

CCSR CIR008
Hypertension with complications and secondary hypertension
Default principal diagnosis: inpatient Yes · outpatient Yes

Clinical InformationClinical

  • Hypertensive Crisis

    a severe, acute increase in blood pressure that may result in stroke or myocardial ischemia.

  • Benign Secondary Hypertension

    mild to moderate high blood pressure that is caused by an underlying medical condition.

  • Malignant Hypertension

    severe hypertension that is characterized by rapid onset of extremely high blood pressure.

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 I15.0 to ICD-9-CMHistory

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

ICD-9-CM
405.01 Mal renovasc hypertens
Approximate The match is approximate rather than exact.
ICD-9-CM
405.11 Benign renovasc hyperten
Approximate The match is approximate rather than exact.
ICD-9-CM
405.91 Renovasc hypertension
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 I15.0Overview

Is I15.0 (Secondary hypertension) a billable code?

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

What MS-DRG does I15.0 group to?

When renovascular hypertension is the principal diagnosis on an inpatient stay, it groups to MS-DRG 304, 305, with relative weights from 0.7551 to 1.1900 depending on complications. Higher weights mean higher Medicare reimbursement.

What is the ICD-9 equivalent of I15.0?

Under the General Equivalence Mappings, renovascular hypertension converts to ICD-9-CM 405.01 (mal renovasc hypertens), 405.11 (benign renovasc hyperten), and 405.91 (renovasc hypertension). 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.