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I12

Non-billable

Hypertensive chronic kidney disease

I12 is the ICD-10-CM code for Hypertensive chronic kidney disease. It is a non-billable category code — use a more specific child code such as I12.0 for billing.

Status
Header (non-billable)
Chapter
I00-I99
Subcodes
2
Edition
FY2026

I00-I99 Diseases of the circulatory system

What this means — in plain language

MedlinePlus · NIH

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. Chronic kidney disease (CKD) means that your kidneys are damaged and can't filter blood as they should. This damage can cause wastes to build up in your body. It can also…

Read more about Chronic Kidney Disease at MedlinePlus ↗
High Blood Pressure ↗

Source: U.S. National Library of Medicine (MedlinePlus). Informational only — not medical advice.

Includes

  • •any condition in N18 and N26 - due to hypertension
  • •arteriosclerosis of kidney
  • •arteriosclerotic nephritis (chronic) (interstitial)
  • •hypertensive nephropathy
  • •nephrosclerosis

Excludes1 — not coded here

  • •hypertension due to kidney disease (I15.0, I15.1)
  • •renovascular hypertension (I15.0)
  • •secondary hypertension (I15.-)

Excludes2 — not included here

  • •acute kidney failure (N17.-)

Frequently asked questions

What is ICD-10 code I12?
I12 is the ICD-10-CM code for "Hypertensive chronic kidney disease". It falls under I00-I99 Diseases of the circulatory system.
Is I12 a billable code?
No — I12 is a non-billable header code. Use a more specific child code (such as I12.0) for billing.
What are the subcodes of I12?
I12 has 2 more specific child codes, including I12.0, I12.9.
What is excluded from I12?
Excludes1 (not coded here): hypertension due to kidney disease (I15.0, I15.1); renovascular hypertension (I15.0); secondary hypertension (I15.-).

Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.

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