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ICD-10-CM 2027 diagnosis code

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

✓ Billable / specificCC — complication/comorbidity

I12.0 is a valid, billable ICD-10-CM code for hypertensive chronic kidney disease with stage 5 chronic kidney disease or end stage renal disease. It can be reported on claims for dates of service from October 1, 2026 – September 30, 2027.Short description: Hyp chr kidney disease w stage 5 chr kidney disease or ESRD

Code unchanged since ICD-10-CM took effect on October 1, 2015. Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data

About I12.0

I12.0 is the ICD-10-CM diagnosis code for hypertensive chronic kidney disease with stage 5 chronic kidney disease or end stage renal disease. It belongs to category I12 (hypertensive chronic kidney disease), block I10-I1A (hypertensive diseases) and chapter 9 (diseases of the circulatory system). It is billable, so it can be reported on its own for dates of service from October 1, 2026 through September 30, 2027.

Within I12 (hypertensive chronic kidney disease), I12.0 is specifically for hypertensive chronic kidney disease with stage 5 chronic kidney disease or end stage renal disease. Related codes cover with stage 1 through stage 4 chronic kidney disease, or unspecified chronic kidney disease (I12.9).

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

As a secondary diagnosis it is a CC (complication or comorbidity), which can move an inpatient stay into the "with CC" MS-DRG of its family, unless the principal diagnosis excludes it.

In MS-DRG v44.0, it is part of the grouping logic for DRG 008 (Simultaneous Pancreas, Islet Cell and Kidney Transplant, relative weight 5.5146), DRG 019 (Simultaneous Pancreas, Islet Cell and Kidney Transplant with Hemodialysis, relative weight 7.5493), DRG 673 (Other Kidney and Urinary Tract Procedures with MCC, relative weight 4.2525), DRG 674 (Other Kidney and Urinary Tract Procedures with CC, relative weight 2.2504), DRG 675 (Other Kidney and Urinary Tract Procedures without CC/MCC, relative weight 1.5887), DRG 682 (Renal Failure with MCC, relative weight 1.4656) and 2 more, in Pre-MDC and MDC 11 (Diseases and Disorders of the Kidney and Urinary Tract), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.

Before ICD-10, this condition was coded in ICD-9-CM as 403.01 (hypertensive chronic kidney disease, malignant, with chronic kidney disease stage V or end stage renal disease), 403.11 (hypertensive chronic kidney disease, benign, with chronic kidney disease stage V or end stage renal disease) and 403.91 (hypertensive chronic kidney disease, unspecified, with chronic kidney disease stage V or end stage renal disease).

Coding notes

Use additional codeAdd a secondary code to fully describe the condition
  • code to identify the stage of chronic kidney disease (N18.5, N18.6)

Notes that apply from higher levels

Instructions written at a parent level also apply to I12.0.

› From I12 Hypertensive chronic kidney disease
Includes
  • any condition in N18 and N26 - due to hypertension
  • arteriosclerosis of kidney
  • arteriosclerotic nephritis (chronic) (interstitial)
  • hypertensive nephropathy
  • nephrosclerosis
Excludes1
  • hypertension due to kidney disease (I15.0, I15.1)
  • renovascular hypertension (I15.0)
  • secondary hypertension (I15.-)
Excludes2
  • acute kidney failure (N17.-)

Broader instructions also apply from I10-I1A Hypertensive diseases and Chapter 9: Diseases of the circulatory system.

Alphabetic index entries

4 entries

Terms in the official ICD-10-CM index that lead to I12.0.

Codes whose notes reference I12.0

MS-DRG v44.0 grouping

All DRGs →

Inpatient MS-DRGs this diagnosis can group to, as the principal or a secondary diagnosis, depending on the rest of the claim.

ICD-9-CM equivalent

Converter →
  • 403.01Hypertensive chronic kidney disease, malignant, with chronic kidney disease stage V or end stage renal diseaseapproximate
  • 403.11Hypertensive chronic kidney disease, benign, with chronic kidney disease stage V or end stage renal diseaseapproximate
  • 403.91Hypertensive chronic kidney disease, unspecified, with chronic kidney disease stage V or end stage renal diseaseapproximate

From the CMS 2018 General Equivalence Mappings (GEMs), the final GEMs release.

Code history

  1. 2016
  2. 2017
  3. 2018
  4. 2019
  5. 2020
  6. 2021
  7. 2022
  8. 2023
  9. 2024
  10. 2025
  11. 2026
  12. 2027
  • FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
  • No changes since FY2016.

Common questions about I12.0

Is I12.0 billable?

Yes. I12.0 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).

Can I12.0 be used as a principal diagnosis?

Yes. The Medicare Code Editor doesn't restrict I12.0 as a principal diagnosis.

Is I12.0 a CC or MCC?

I12.0 is a CC (complication or comorbidity) under MS-DRG v44.0, unless excluded by the principal diagnosis.

What DRG does I12.0 group to?

I12.0 is used in the MS-DRG v44.0 logic for MS-DRG 008 (Simultaneous Pancreas, Islet Cell and Kidney Transplant), MS-DRG 019 (Simultaneous Pancreas, Islet Cell and Kidney Transplant with Hemodialysis), MS-DRG 673 (Other Kidney and Urinary Tract Procedures with MCC), MS-DRG 674 (Other Kidney and Urinary Tract Procedures with CC), MS-DRG 675 (Other Kidney and Urinary Tract Procedures without CC/MCC), MS-DRG 682 (Renal Failure with MCC) and 2 more. Which one applies depends on whether it is the principal diagnosis and on the rest of the claim.

What is the ICD-9 code for I12.0?

The CMS General Equivalence Mappings map I12.0 to ICD-9-CM 403.01, 403.11 and 403.91.