I77.81Header code — not billable
Aortic ectasia
- Chapter
- 9. Diseases of the circulatory system
- Category
- I77
- Effective date
- October 1, 2026
Related codes in category I77
I77Other disorders of arteries and arteriolesI77.0Arteriovenous fistula, acquiredYesI77.1Stricture of arteryYesI77.2Rupture of arteryYesI77.3Arterial fibromuscular dysplasiaYesI77.4Celiac artery compression syndromeYesI77.5Necrosis of arteryYesI77.6Arteritis, unspecifiedYesI77.7Other arterial dissectionI77.70Dissection of unspecified arteryYesI77.71Dissection of carotid arteryYesI77.72Dissection of iliac arteryYes
Frequently asked questions
What is ICD-10 code I77.81?
I77.81 is an ICD-10-CM diagnosis code for Aortic ectasia.
Is I77.81 a billable code?
No. I77.81 is a category/header code, not billable on its own — use one of its more specific child codes instead.
What ICD-10-CM chapter is I77.81 in?
I77.81 falls under Chapter 9: Diseases of the circulatory system.
When did I77.81 become effective?
I77.81 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.
What other codes are related to I77.81?
I77.81 belongs to category I77, which includes 12 other codes — see the related codes list on this page.
ICD-10-CM data maintained by CDC/CMS (public domain). Always verify codes with authoritative sources before making coding or billing decisions.