ICD-10 Code I73.8 – Other specified peripheral vascular diseases (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code I73.8 – Other specified peripheral vascular diseases
What it is
I73.8 is used for peripheral vascular disease that affects the blood vessels outside the heart and brain, when the condition does not fit a more specific ICD-10 category. Use it for a documented vascular disorder with a clearer diagnosis than “unspecified.”
Clinical signs
Clinical features vary; refer to documentation. Commonly documented findings may include reduced peripheral circulation, limb discomfort, color changes, cool extremities, or diminished pulses, but you should code only what is clearly stated.
When to use this code
Use I73.8 when the provider identifies a specific peripheral vascular disorder that is not indexed elsewhere in ICD-10-CM. It is appropriate when the record supports a peripheral vascular diagnosis but does not name a more exact code. If the note is vague, check documentation before assigning this code.
Do not use for
Do not use I73.8 for atherosclerosis, peripheral arterial disease with a more specific code, or vasculitis. If the condition is documented as nonspecific peripheral vascular disease without further detail, check documentation.
Coding tip
Confirm the exact vascular diagnosis and laterality, if documented, before selecting I73.8.