ICD-10-CM Tabular Index · Chapter 9 · FY 2026 I13

Hypertensive heart and chronic kidney disease (I13) ICD-10-CM

The I13 code range covers hypertensive heart and chronic kidney disease with 6 ICD-10-CM diagnosis codes. 4 of them are billable and valid for claim submission in fiscal year 2026, and the category headers group them but cannot themselves be billed.

✓ Built from the official CMS FY 2026 datasetEffective Oct 1, 2025 – Sep 30, 2026
6
Diagnosis Codes
4
Billable Codes
I13
Code Range
I10–I1A
Parent Section

Includes

This note appears immediately under a three character code title to further define, or give examples of, the content of the category.

ICD-10-CM

Codes in the I13 Range 6 codes · 4 billable

6 of 6 shown
  • I13 Hypertensive heart and chronic kidney diseaseNon-billable
  • I13.0 Hypertensive heart and chronic kidney disease with heart failure and stage 1 through stage 4 chronic kidney disease, or unspecified chronic kidney disease
  • I13.1 Hypertensive heart and chronic kidney disease without heart failureNon-billable
  • I13.10 Hypertensive heart and chronic kidney disease without heart failure, with stage 1 through stage 4 chronic kidney disease, or unspecified chronic kidney disease
  • I13.11 Hypertensive heart and chronic kidney disease without heart failure, with stage 5 chronic kidney disease, or end stage renal disease
  • I13.2 Hypertensive heart and chronic kidney disease with heart failure and with stage 5 chronic kidney disease, or end stage renal disease

About the I13 Code Range

ICD-10 codes in the I13 category are specifically used to identify and classify conditions involving hypertensive heart disease combined with chronic kidney disease. These codes distinguish whether the patient has accompanying heart failure and the stage of kidney disease, making them essential for precise documentation of intertwined cardiovascular and renal complications caused by hypertension.

This section covers the spectrum of hypertensive heart and chronic kidney disease, including cases with or without heart failure, and details stages 1 through 5 of chronic kidney disease or end-stage renal disease. For example, I13.0 codes cases with heart failure and kidney disease stages 1-4 or unspecified, while I13.1 refers to those without heart failure. The code I13.11 is used when kidney disease has progressed to stage 5 or end-stage renal disease without heart failure, and I13.2 covers combined heart failure and stage 5 kidney disease. Synonyms like "hypertensive heart and renal disease," "cardiorenal syndrome," and "hypertensive renal failure" reflect common clinical terms linked to these codes. Using these codes correctly helps ensure accurate recording of complex hypertension-related heart and kidney conditions, including those complicating pregnancy or childbirth.

Questions About This Page

How many billable codes are in the I13 range?

Of the 6 codes in this range, 4 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 I13 range classify?

The range classifies hypertensive heart and chronic kidney 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.