I99.8 Other disorder of circulatory system

Billable ICD-10-CM code, FY2026.

MS-DRG index

Defines the logic of DRG(s) 302-303 in MDC 05.

Approximate ICD-9-CM (GEMs)

• 459.89 Other specified disorders of circulatory system (approximate)

Diagnosis Index entries for I99.8

• Angiectasis, angiectopia
• Atrophy, atrophic (of) › vascular
• Blood › pressure › fluctuating
• Circulation › collateral, any site
• Complication (s) (from) (of) › circulatory system
• Congestion, congestive › circulatory NEC
• Dilatation › blood vessel
• Disease, diseased › circulatory (system) NEC
• Disease, diseased › vascular › occlusive
• Dissection › vascular
• Fluctuating blood pressure
• Insufficiency, insufficient › arteriovenous
• Insufficiency, insufficient › circulatory NEC
• Insufficiency, insufficient › vascular
• Ischemia, ischemic
• Obstruction, obstructed, obstructive › circulatory
• Obstruction, obstructed, obstructive › vessel NEC
• Occlusion, occluded › vascular NEC
• Occlusion, occluded › vessel (blood)

Nearby codes

• I99 Other and unspecified disorders of circulatory system
• I99.8 Other disorder of circulatory system (this code)
• I99.9 Unspecified disorder of circulatory system