All ICD10 Codes
I77Not billable, use a more specific code below

Other disorders of arteries and arterioles

In Diseases of arteries, arterioles and capillaries (I70-I79), chapter 9: Diseases of the Circulatory System

23 billable codes under I77: 9 are an MCC, 3 are a CC; 1 map to HCC 93 (Rheumatoid Arthritis and Other Specified Inflammatory Rheumatic Disorders).A CC or MCC (major CC) is a secondary diagnosis that raises the MS-DRG payment. An HCC counts toward a Medicare Advantage patient's risk score.

Advertisements

Instructional notes

Excludes2: not included here, code separately if applicable

  • collagen (vascular) diseases (M30-M36)
  • hypersensitivity angiitis (M31.0)
  • pulmonary artery (I28.-)

Official coding guidelines

From the ICD-10-CM Official Guidelines for Coding and Reporting, FY 2027 (CMS and NCHS). Links open the PDF at the right page.

Covers hypertension with heart and kidney disease, coronary artery disease with angina, perioperative stroke, cerebrovascular sequelae, and acute myocardial infarction types and timing.

Read Section I.C.9 (page 50)

All codes under I77

I77 can't be used on a claim. Pick a billable code below; grey headings group them.

I77 MS-DRGs

As the principal diagnosis, the billable codes under I77 group to these 11 MS-DRGs (v44.0). Which one applies depends on procedures performed, secondary diagnoses (CC/MCC), and the patient's age and discharge status.

Code history

Valid since FY2016, when ICD-10-CM took effect on October 1, 2015. No changes since.