U.S. ICD-10-CM · FY 2027

I70 ICD-10-CM Code: Atherosclerosis

A clear reference for the official code description, hierarchy, and related coding information from the FY 2027 U.S. release.

Code definition

Official description

I70

Atherosclerosis

ICD-10-CM diagnosis code · United States clinical modification

Classification

Where I70 sits

  1. 1

    Chapter 9

    Diseases of the circulatory system (I00-I99)

  2. 2

    Section

    Diseases of arteries, arterioles and capillaries (I70-I79)

  3. 3

    Category I70

    Atherosclerosis

  4. 4

    Code I70

    Atherosclerosis

More specific choices

Codes under I70

I70 is a non-billable category. Choose the child code that best matches the documented diagnosis.

I70.0

Atherosclerosis of aorta

I70.1

Atherosclerosis of renal artery

I70.2

Atherosclerosis of native arteries of the extremities

I70.3

Atherosclerosis of unspecified type of bypass graft(s) of the extremities

I70.4

Atherosclerosis of autologous vein bypass graft(s) of the extremities

I70.5

Atherosclerosis of nonautologous biological bypass graft(s) of the extremities

I70.6

Atherosclerosis of nonbiological bypass graft(s) of the extremities

I70.7

Atherosclerosis of other type of bypass graft(s) of the extremities

I70.8

Atherosclerosis of other arteries

I70.9

Other and unspecified atherosclerosis

Documentation details

Notes for this code

Inclusion terms

No inclusion terms are listed for I70.

Code first

No “code first” instruction is listed for I70.

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)

Excludes1

Conditions that should not be reported together with this code.

No Excludes1 note is listed for I70.

Excludes2

Conditions not included here that may be reported separately when present.

  • 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)

Transparency

Source and release

Data release

U.S. ICD-10-CM · FY 2027

Effective date

Oct 1, 2026

Publisher

Vero Scribe Inc.

This reference is generated from Vero’s ICD-10-CM description, hierarchy, and code-note dataset. The visible content and structured data share that source.

Review the CDC/NCHS ICD-10-CM source

Code-specific guidance

Frequently asked questions

What does ICD-10-CM code I70 mean?

I70 is the FY 2027 U.S. ICD-10-CM code for “Atherosclerosis.”

Is I70 a billable or specific ICD-10-CM code?

No. I70 has more specific child codes in the FY 2027 reference data. Select the code that matches the documentation and confirm the active code set and payer requirements.

Where is I70 located in ICD-10-CM?

I70 is listed in Chapter 9, Diseases of the circulatory system (I00-I99), within Diseases of arteries, arterioles and capillaries (I70-I79) (I70–I79), under category I70, Atherosclerosis.

What coding notes are listed for I70?

No inclusion terms are listed for I70 in this reference record. No code-first instruction is listed. Additional-code instructions: 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). No Excludes1 note is listed. Excludes2 notes: 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).

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