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I70.66

Non-billable

Atherosclerosis of nonbiological bypass graft(s) of the extremities with gangrene

I70.66 is the ICD-10-CM code for Atherosclerosis of nonbiological bypass graft(s) of the extremities with gangrene. It is a non-billable category code — use a more specific child code such as I70.661 for billing.

Status
Header (non-billable)
Chapter
I00-I99
Parent
I70.6
Subcodes
5
Edition
FY2026

I00-I99 Diseases of the circulatory system

Includes

  • •any condition classifiable to I70.61-, I70.62-, I70.63-, I70.64-, I70.65
  • •chronic limb-threatening ischemia of nonbiological bypass graft(s) of the extremities with gangrene
  • •critical limb ischemia of nonbiological bypass graft(s) of the extremities with gangrene

Use additional code

  • •code to identify the severity of any ulcer (L97.-, L98.49-), if applicable

Frequently asked questions

What is ICD-10 code I70.66?
I70.66 is the ICD-10-CM code for "Atherosclerosis of nonbiological bypass graft(s) of the extremities with gangrene". It falls under I00-I99 Diseases of the circulatory system.
Is I70.66 a billable code?
No — I70.66 is a non-billable header code. Use a more specific child code (such as I70.661) for billing.
What are the subcodes of I70.66?
I70.66 has 5 more specific child codes, including I70.661, I70.662, I70.663.

Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.

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