2026 ICD-10-CM Diagnosis Code I12Hypertensive chronic kidney disease
I12 is a non-billable ICD-10-CM category code for hypertensive chronic kidney disease, so it cannot be submitted on claims. Use a more specific code from this category instead, such as I12.0 and I12.9.
Code Identity
Code Classification
Specific Coding for Hypertensive chronic kidney diseaseOverview
Non-specific codes like I12 require more characters. Use one of these billable codes instead:
Tabular List NotesGuidance
Coding notes and annotation back-references applicable to this code.
Includes
- any condition in N18 N26
- arteriosclerosis of kidney
- arteriosclerotic nephritis (chronic) (interstitial)
- hypertensive nephropathy
- nephrosclerosis
Type 1 Excludes
- hypertension due to kidney disease I15.0 I15.1
- renovascular hypertension I15.0
- secondary hypertension I15
Type 2 Excludes
- acute kidney failure N17
This note appears immediately under a three character code title to further define, or give examples of, the content of the category.
A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
A type 2 excludes note represents "Not included here". An excludes2 note indicates that the condition excluded is not part of the condition represented by the code, but a patient may have both conditions at the same time. When an Excludes2 note appears under a code, it is acceptable to use both the code and the excluded code together, when appropriate.
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.
Code HistoryHistory
Questions About I12Overview
Is I12 (Hypertensive chronic kidney disease) a billable code?
No. This is a category header that groups the codes for hypertensive chronic kidney disease, and headers cannot be submitted on claims. Claims for hypertensive chronic kidney disease need a more specific code from this category, such as I12.0 and I12.9.
