ICD-10 Code I70.229 – Atherosclerosis of native arteries of extremities with rest pain, unspecified extremity (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code I70.229 – Atherosclerosis of native arteries of extremities with rest pain, unspecified extremity
What it is
This code identifies atherosclerosis in a native artery of an extremity when the limb has rest pain. Use it when the documentation names the condition but does not specify which extremity is affected.
Clinical signs
Typical findings include ischemic pain in the affected limb, often worse at rest or when the leg is elevated. Clinical features vary; refer to documentation.
When to use this code
Use I70.229 when the provider documents atherosclerosis of a native extremity artery with rest pain and does not name the right or left side. It also fits when the note clearly supports ischemic rest pain from peripheral arterial disease. Check documentation if laterality is recorded elsewhere.
Do not use for
Do not use this code for atherosclerosis without rest pain, or when the record specifies a different extremity code. If documentation is unclear or conflicting, check documentation.
Coding tip
Confirm both the rest pain and the unspecified extremity wording before assigning I70.229.