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I12.0

I12.0Hypertensive chronic kidney disease with stage 5 chronic kidney disease or end stage renal disease

Billable / specific codeICD-10-CM

I12.0 is a billable, specific ICD-10-CM code for hypertensive chronic kidney disease with stage 5 chronic kidney disease or end stage renal disease. It is valid for submission on a claim.

Use additional code

Add a secondary code to capture the detail described below.

  • code to identify the stage of chronic kidney disease (N18.5, N18.6)

Excludes1 inherited from the categories above I12.0

These are not written on I12.0, but they bind it: a note on a category applies to every code beneath it. Billing I12.0 with anything listed here is a denial.

Written on I12 Hypertensive chronic kidney disease

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

Excludes2 inherited from the categories above I12.0

Also inherited, and the opposite of Excludes1: these conditions are not part of I12.0, but a patient can have both, so you may code both.

Written on I12 Hypertensive chronic kidney disease

  • acute kidney failure (N17.-)

Other codes that can never be billed with I12.0

These codes carry an Excludes1 note pointing at I12.0. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading I12.0 alone.

  • N26Unspecified contracted kidney

Risk adjustment

I12.0 risk-adjusts. Under the CMS-HCC V28 model it maps to this category:

  • HCC 326 Chronic Kidney Disease, Stage 50.815 RAF

Coefficient shown for the Community Non-dual Aged segment. A higher HCC in the same hierarchy will suppress this one, so capturing it does not always add score.

Medicare coverage

I12.0 is named in 40 Medicare coverage policies 40 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.

  • A52850Billing and Coding: Cardiac Catheterization and Coronary Angiography
  • A53026Billing and Coding: Bariatric Surgery Coverage
  • A54923Billing and Coding: Bariatric Surgery for Treatment of Co-Morbidities Conditions Related to Morbid Obesity
  • A55336Billing and Coding: Retroperitoneal Ultrasound

How I12.0 is indexed

Coders do not find codes by browsing the tabular list — they look them up in the alphabetic index, under the word the physician wrote. These are the index entries that lead here, so you can see which chart wordings map to I12.0.

  • Disease, diseasedend stage renaldue to hypertension
  • Disease, diseasedrenalend-stagedue to hypertension
  • Failure, failedrenalend stagedue to hypertension
  • Hypertension, hypertensivekidneywithstage 5 chronic kidney disease(CKD) or end stage renal disease (ESRD)

The condition this code belongs to

Every code for the condition on one page, which one applies when, and the mistake coders make with it.

Code history

I12.0 has not changed since FY2024 — no addition, revision or deletion across the three most recent ICD-10-CM releases.

Related codes at this level

Codes that share I12. If I12.0 is not quite right, the correct code is usually one of these.

Questions about I12.0

Is I12.0 a billable ICD-10-CM code?
Yes. I12.0 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
Where does I12.0 sit in the tabular list?
Diseases of the circulatory system (I00-I99), in the block Hypertensive diseases (I10-I1A).
What cannot be coded together with I12.0?
I12.0 carries Excludes1 notes, which means the conditions they list can never be coded together with it on the same encounter. Some are written on the categories above I12.0 (I12) and apply to it just the same.
ICD-10-CMFY2026-Apr· effective April 1, 2026

Loaded directly from the CMS/NCHS ICD-10-CM public-domain release — see data sources and our editorial policy. If this page disagrees with the CMS tabular list, this page is wrong. Reference information for professional coders; not medical or billing advice.