ICD-10 Code I73.9 – Peripheral vascular disease, unspecified (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code I73.9 – Peripheral vascular disease, unspecified
What it is
I73.9 identifies peripheral vascular disease when the affected vessels or exact type are not further specified. Use it for documented peripheral arterial disease or vascular insufficiency that lacks a more precise diagnosis.
Clinical signs
Common findings include reduced peripheral pulses, leg pain with walking, cool extremities, or skin color changes. Clinical features vary; refer to documentation when the record does not clearly describe the vascular territory.
When to use this code
Use this code when the provider documents peripheral vascular disease, peripheral arterial disease, or vascular insufficiency without naming a more specific site or cause. It also fits when the chart confirms chronic peripheral circulation problems but does not support a more detailed ICD-10 option.
If later documentation identifies a specific vessel disorder, code that condition instead. You should rely on the clinician’s wording, not on assumptions from symptoms alone.
Do not use for
Do not use I73.9 for acute arterial occlusion, venous disease, or Raynaud syndrome. Check documentation if the record points to a more specific peripheral circulatory disorder.
Coding tip
Query for specificity when the note says only “PVD,” because a more detailed diagnosis may be available.