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ICD-10-CM 2027 diagnosis code

I70.1Atherosclerosis of renal artery

✓ Billable / specificAdult · age 15–124

I70.1 is a valid, billable ICD-10-CM code for atherosclerosis of renal artery. It can be reported on claims for dates of service from October 1, 2026 – September 30, 2027.

Looking up by condition? See ICD-10 code for Goldblatt's hypertension or kidney.

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 I70.1

I70.1 is the ICD-10-CM diagnosis code for atherosclerosis of renal artery. It belongs to category I70 (atherosclerosis), block I70-I79 (diseases of arteries, arterioles and capillaries) 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 I70 (atherosclerosis), I70.1 is specifically for atherosclerosis of renal artery. Related codes cover of aorta (I70.0), of native arteries of the extremities (I70.2), of unspecified type of bypass graft(s) of the extremities (I70.3), of autologous vein bypass graft(s) of the extremities (I70.4), of nonautologous biological bypass graft(s) of the extremities (I70.5), of nonbiological bypass graft(s) of the extremities (I70.6), of other type of bypass graft(s) of the extremities (I70.7), of other arteries (I70.8) and 1 more.

The conditions in its Excludes2 note aren't part of I70.1, but may be coded alongside it if the patient has both: atherosclerosis of renal arterioles (I12.-).

Use an additional code to identify: exposure to environmental tobacco smoke (Z77.22), history of tobacco dependence (Z87.891), occupational exposure to environmental tobacco smoke (Z57.31), tobacco dependence (F17.-) and tobacco use (Z72.0).

It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.

In MS-DRG v44.0, it is part of the grouping logic for DRG 698 (Other Kidney and Urinary Tract Diagnoses with MCC, relative weight 1.6398), DRG 699 (Other Kidney and Urinary Tract Diagnoses with CC, relative weight 1.0003) and DRG 700 (Other Kidney and Urinary Tract Diagnoses without CC/MCC, relative weight 0.6741), in 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.

The Medicare Code Editor expects this diagnosis only for patients age 15 through 124.

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 440.1 (atherosclerosis of renal artery).

Coding notes

Applicable toConditions and synonyms classified to this code
  • Goldblatt's kidney
Excludes2Not included here — may be reported together if both conditions exist
  • atherosclerosis of renal arterioles (I12.-)

Notes that apply from higher levels

Instructions written at a parent level also apply to I70.1.

› From I70 Atherosclerosis
Includes
  • arteriolosclerosis
  • arterial degeneration
  • arteriosclerosis
  • arteriosclerotic vascular disease
  • arteriovascular degeneration
  • atheroma
  • endarteritis deformans or obliterans
  • senile arteritis
  • senile endarteritis
  • vascular degeneration
Excludes2
  • arteriosclerotic cardiovascular disease (I25.1-)
  • arteriosclerotic heart disease (I25.1-)
  • atheroembolism (I75.-)
  • cerebral atherosclerosis (I67.2)
  • coronary atherosclerosis (I25.1-)
  • mesenteric atherosclerosis (K55.1)
  • precerebral atherosclerosis (I67.2)
  • primary pulmonary atherosclerosis (I27.0)
Use additional code
  • code to identify:
  • exposure to environmental tobacco smoke (Z77.22)
  • history of tobacco dependence (Z87.891)
  • occupational exposure to environmental tobacco smoke (Z57.31)
  • tobacco dependence (F17.-)
  • tobacco use (Z72.0)

Broader instructions also apply from Chapter 9: Diseases of the circulatory system.

Alphabetic index entries

7 entries

Terms in the official ICD-10-CM index that lead to I70.1.

Codes whose notes reference I70.1

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 →
  • 440.1Atherosclerosis of renal arteryexact

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 I70.1

Is I70.1 billable?

Yes. I70.1 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).

Can I70.1 be used as a principal diagnosis?

Yes. The Medicare Code Editor doesn't restrict I70.1 as a principal diagnosis.

Is I70.1 a CC or MCC?

No. I70.1 is neither a CC nor an MCC under MS-DRG v44.0.

What DRG does I70.1 group to?

I70.1 is used in the MS-DRG v44.0 logic for MS-DRG 698 (Other Kidney and Urinary Tract Diagnoses with MCC), MS-DRG 699 (Other Kidney and Urinary Tract Diagnoses with CC) and MS-DRG 700 (Other Kidney and Urinary Tract Diagnoses without CC/MCC). 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 I70.1?

The CMS General Equivalence Mappings map I70.1 to ICD-9-CM 440.1.