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ICD-10-CM · FY 2026 APRIL UPDATE

I70

Atherosclerosis

Diagnosis reference

Nonbillable category

This entry is a category or subcategory. Choose the appropriate billable descendant based on the clinical documentation.

Effective periodOctober 1, 2026–September 30, 2027
SourceCMS ICD-10-CM order file
ClassificationDiagnosis · clinical modification

Related entries

Up to 30 descendants in this category

CODEDESCRIPTIONTYPE
I70.0Atherosclerosis of aortaBillable
I70.1Atherosclerosis of renal arteryBillable
I70.2Atherosclerosis of native arteries of the extremitiesCategory
I70.20Unspecified atherosclerosis of native arteries of extremitiesCategory
I70.201Unspecified atherosclerosis of native arteries of extremities, right legBillable
I70.202Unspecified atherosclerosis of native arteries of extremities, left legBillable
I70.203Unspecified atherosclerosis of native arteries of extremities, bilateral legsBillable
I70.208Unspecified atherosclerosis of native arteries of extremities, other extremityBillable
I70.209Unspecified atherosclerosis of native arteries of extremities, unspecified extremityBillable
I70.21Atherosclerosis of native arteries of extremities with intermittent claudicationCategory
I70.211Atherosclerosis of native arteries of extremities with intermittent claudication, right legBillable
I70.212Atherosclerosis of native arteries of extremities with intermittent claudication, left legBillable
I70.213Atherosclerosis of native arteries of extremities with intermittent claudication, bilateral legsBillable
I70.218Atherosclerosis of native arteries of extremities with intermittent claudication, other extremityBillable
I70.219Atherosclerosis of native arteries of extremities with intermittent claudication, unspecified extremityBillable
I70.22Atherosclerosis of native arteries of extremities with rest painCategory
I70.221Atherosclerosis of native arteries of extremities with rest pain, right legBillable
I70.222Atherosclerosis of native arteries of extremities with rest pain, left legBillable
I70.223Atherosclerosis of native arteries of extremities with rest pain, bilateral legsBillable
I70.228Atherosclerosis of native arteries of extremities with rest pain, other extremityBillable
I70.229Atherosclerosis of native arteries of extremities with rest pain, unspecified extremityBillable
I70.23Atherosclerosis of native arteries of right leg with ulcerationCategory
I70.231Atherosclerosis of native arteries of right leg with ulceration of thighBillable
I70.232Atherosclerosis of native arteries of right leg with ulceration of calfBillable
I70.233Atherosclerosis of native arteries of right leg with ulceration of ankleBillable
I70.234Atherosclerosis of native arteries of right leg with ulceration of heel and midfootBillable
I70.235Atherosclerosis of native arteries of right leg with ulceration of other part of footBillable
I70.238Atherosclerosis of native arteries of right leg with ulceration of other part of lower legBillable
I70.239Atherosclerosis of native arteries of right leg with ulceration of unspecified siteBillable
I70.24Atherosclerosis of native arteries of left leg with ulcerationCategory

Use the complete reference

This reference does not reproduce the full tabular hierarchy, inclusion notes, Excludes1/2 notes, sequencing instructions, or seventh-character rules. Review the official tables and coding guidelines.

Open official CMS files

ICD-10-CM codes describe diagnoses. They do not have an independent Medicare PFS reimbursement amount, and billability alone does not establish coverage.