MCMedicalCodingSoftware
I82.91

I82.91: Chronic embolism and thrombosis of unspecified vein

Billable / specific codeICD-10-CM

I82.91 is a billable, specific ICD-10-CM code for chronic embolism and thrombosis of unspecified vein. It is valid for submission on a claim.

Check I82.91 with the rest of the claim: free scrubber

Excludes2 inherited from the categories above I82.91

Not part of this code, but both may be coded when both are present.

Written on I82: Other venous embolism and thrombosis

  • venous embolism and thrombosis (of):
  • cerebral (I63.6, I67.6)
  • coronary (I21-I25)
  • intracranial and intraspinal, septic or NOS (G08)
  • intracranial, nonpyogenic (I67.6)
  • intraspinal, nonpyogenic (G95.1)
  • mesenteric (K55.0-)
  • portal (I81)
  • pulmonary (I26.-)

Risk adjustment

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

Medicare coverage

I82.91 is named in 14 Medicare coverage policies: 14 listing it as supporting medical necessity. Which one applies depends on your Medicare contractor.

  • A55717Billing and Coding: Lab: Flow Cytometry
  • A56464Billing and Coding: Flow Cytometry
  • A56541Billing and Coding: Biomarkers Overview
  • A56697Billing and Coding: Non-Invasive Vascular Studies

Alphabetic index entries that lead here

  • Thrombosis, thrombotic›chronic
  • Embolism›vein›chronic
  • Thrombosis, thrombotic›vein›chronic

Code history

Unchanged in every release from FY2024 to FY2027.

Other codes under I82.9

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.