I77.8 – Other specified disorders of arteries and arterioles

ICD-10-CM 2027 diagnosis code · Diseases of arteries, arterioles and capillaries

Non-billable header

ICD-10-CM code I77.8

Code: I77.8 (claims format: I778)
Description: Other specified disorders of arteries and arterioles
Billable: No – use a more specific code below
Valid for: Dates of service October 1, 2026 – September 30, 2027 (FY2027)
Chapter: 9. Diseases of the circulatory system (I00-I99)
Block: I70-I79 Diseases of arteries, arterioles and capillaries
Parent codes: I77

Billable codes under I77.8

I77.8 is a header code and cannot be used on claims. Choose the most specific code:

I77.81 – Aortic ectasiaHeader (more codes below)
I77.82 – Antineutrophilic cytoplasmic antibody [ANCA] vasculitisBillable
I77.89 – Other specified disorders of arteries and arteriolesBillable

Notes inherited from parent codes

Instructional notes at a category or block level apply to every code below it.

I77 – Other disorders of arteries and arterioles

Excludes2 (not included here):

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

Related codes in I77

I77.0 – Arteriovenous fistula, acquiredBillable
I77.1 – Stricture of arteryBillable
I77.2 – Rupture of arteryBillable
I77.3 – Arterial fibromuscular dysplasiaBillable
I77.4 – Celiac artery compression syndromeBillable
I77.5 – Necrosis of arteryBillable
I77.6 – Arteritis, unspecifiedBillable
I77.7 – Other arterial dissectionHeader
I77.9 – Disorder of arteries and arterioles, unspecifiedBillable

Frequently asked questions

What is ICD-10 code I77.8?

I77.8 is the ICD-10-CM code for other specified disorders of arteries and arterioles, in the block I70-I79 (Diseases of arteries, arterioles and capillaries).

Is I77.8 a billable code?

No. I77.8 is a header code with more specific child codes; report one of the billable codes listed above.

What category does I77.8 belong to?

It belongs to category I77 – Other disorders of arteries and arterioles.

Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.