I73.9 Peripheral vascular disease, unspecified

Billable ICD-10-CM code, FY2026.

Applicable to

• Intermittent claudication
• Peripheral angiopathy NOS
• Spasm of artery

Excludes1 (never code together)

• atherosclerosis of the extremities (I70.2--I70.7-)

Applies from I73 Other peripheral vascular diseases

Excludes2 (not included here)

• chilblains (T69.1)
• frostbite (T33-T34)
• immersion hand or foot (T69.0-)
• spasm of cerebral artery (G45.9)

Risk adjustment (HCC)

• CMS-HCC V22: HCC 108 — Vascular Disease
• ESRD V24: HCC 108

MS-DRG index

Defines the logic of DRG(s) 299-301 in MDC 05.

Approximate ICD-9-CM (GEMs)

• 443.9 Peripheral vascular disease, unspecified

Code annotations containing back-references to I73.9

Back-references to I73

• Type 1 Excludes: I96 Gangrene, not elsewhere classified ("gangrene in other peripheral vascular diseases (I73.-)")

Diagnosis Index entries for I73.9

• Angina (attack) (cardiac) (chest) (heart) (pectoris) (syndrome) (vasomotor) › cruris
• Angiopathia, angiopathy › peripheral
• Angiospasm (peripheral) (traumatic) (vessel)
• Angiospastic disease or edema
• Arteriospasm
• Change (s) (in) (of) › vasomotor
• Charcot's › syndrome (intermittent claudication)
• Claudication (intermittent)
• Dilatation › vasomotor
• Disease, diseased › angiospastic
• Disease, diseased › arterial › peripheral
• Disease, diseased › artery › peripheral
• Disease, diseased › peripheral › arterial
• Disease, diseased › peripheral › vascular NOS
• Disease, diseased › small vessel
• Disease, diseased › terminal vessel
• Disease, diseased › vascular › obliterative › peripheral
• Disease, diseased › vascular › peripheral (occlusive)
• Disease, diseased › vasomotor
• Disease, diseased › vasospastic
• Disturbance (s) › vasomotor
• Disturbance (s) › vasospastic
• Dysbasia › angiosclerotica intermittens
• Edema, edematous (infectious) (pitting) (toxic) › angiospastic
• Insufficiency, insufficient › arterial › peripheral
• Insufficiency, insufficient › peripheral vascular (arterial)
• Insufficiency, insufficient › vascular › peripheral
• Labile › vasomotor system
• Microangiopathy (peripheral)
• Phenomenon › vasospastic
• Reflex › vasoconstriction
• Spasm (s), spastic, spasticity › artery
• Spasm (s), spastic, spasticity › vascular
• Spasm (s), spastic, spasticity › vasomotor
• Syndrome › Charcot's (angina cruris) (intermittent claudication)
• Syndrome › vasomotor
• Vascular › spasm
• Vasodilation
• Vasospasm (vasoconstriction)
• Vasospasm (vasoconstriction) › peripheral NOS

Nearby codes

• I73.01 Raynaud's syndrome with gangrene
• I73.1 Thromboangiitis obliterans [Buerger's disease]
• I73.8 Other specified peripheral vascular diseases
• I73.81 Erythromelalgia
• I73.89 Other specified peripheral vascular diseases
• I73.9 Peripheral vascular disease, unspecified (this code)