ICD-10 Code I70.319 – Atherosclerosis of unspecified type of bypass graft(s) of the extremities with intermittent claudication, unspecified extremity (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code I70.319 – Atherosclerosis of unspecified type of bypass graft(s) of the extremities with intermittent claudication, unspecified extremity
What it is
This code identifies atherosclerosis affecting an unspecified bypass graft in an extremity, with intermittent claudication and no specified side. It means blood flow through the graft is reduced enough to cause exertional leg pain.
Clinical signs
Typical findings include exertional pain, cramping, or fatigue in the affected limb that improves with rest. Clinical features vary; refer to documentation for graft type, extremity laterality, and whether claudication is clearly documented.
When to use this code
Use I70.319 when the provider documents atherosclerosis in a bypass graft of an extremity and specifically notes intermittent claudication, but does not identify the graft type or the side. Apply it only when the record supports both the graft disease and the claudication.
If the note names a specific extremity or graft type, select the more specific code instead. Check documentation when the wording is ambiguous or when pain is present without explicit claudication.
Do not use for
Do not use this code for native artery atherosclerosis, acute limb ischemia, or bypass graft disease without claudication. Also avoid it when the documentation specifies a different extremity or graft type.
Coding tip
Confirm both “bypass graft” and “intermittent claudication” are documented before assigning I70.319.