I70.56

Header — not billable

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

The ICD-10 code for atherosclerosis of nonautologous biological bypass graft(s) of the extremities with gangrene is I70.56.

I70.56 is a non-billable header code. It groups related conditions but cannot be used on its own for reimbursement — select one of the 5 more specific codes below.

Clinical notes

Includes

Terms listed here further define or give examples of the conditions grouped under this code — they describe what the code covers, not a separate diagnosis.

any condition classifiable to I70.51-, I70.52-, and I70.53-, I70.54-, I70.55
chronic limb-threatening ischemia of nonautologous biological bypass graft(s) of the extremities with gangrene
critical limb ischemia of nonautologous biological bypass graft(s) of the extremities with gangrene

Use additional code

This code represents an underlying condition. When a related manifestation is also present, coding convention calls for an additional code to be listed after this one.

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

Documentation support

General coding-documentation guidance — not a substitute for payer-specific requirements or professional coding judgment.

•This is a non-billable header code. Documentation must support a more specific child code before this diagnosis can be reported on a claim.
•Laterality-specific codes exist for this condition — confirm the affected side is documented.
•If the associated manifestation or related condition noted above is also documented, an additional code should be reported alongside this one.
•As a general rule, code to the highest level of specificity supported by the documentation in the medical record.

I70.56

Clinical notes

Includes

Use additional code

Documentation support

Child codes under I70.56

Related codes in this category