MCMedicalCodingSoftware
I99.8

I99.8: Other disorder of circulatory system

Billable / specific codeICD-10-CM

I99.8 is a billable, specific ICD-10-CM code for other disorder of circulatory system. It is valid for submission on a claim.

Check I99.8 with the rest of the claim: free scrubber

Risk adjustment

No CMS-HCC V28 category: this code does not change a RAF score.

Alphabetic index entries that lead here

  • Angiectasis, angiectopia
  • Fluctuating blood pressure
  • Ischemia, ischemic
  • Atrophy, atrophic›vascular
  • Circulation›collateral, any site
  • Complication›circulatory system
  • Congestion, congestive›circulatory NEC
  • Dilatation›blood vessel
  • Disease, diseased›circulatory NEC(system)
  • Dissection›vascular
  • Insufficiency, insufficient›arteriovenous
  • Insufficiency, insufficient›circulatory NEC

Code history

Unchanged in every release from FY2024 to FY2027.

Other codes under I99

ICD-10-CMFY2027· effective October 1, 2026

Loaded directly from the CMS/NCHS ICD-10-CM public-domain release: see data sources and our editorial policy. If this page disagrees with the CMS tabular list, this page is wrong. Reference information for professional coders; not medical or billing advice.