All ICD10 Codes

I77.81

Non-Billable
ChapterI00–I99
Ranksubcategory
Official Description

Aortic ectasia

Use a more specific code (4 billable)
I77.810Thoracic aortic ectasiaI77.811Abdominal aortic ectasiaI77.812Thoracoabdominal aortic ectasiaI77.819Aortic ectasia, unspecified site
Metadata & Insights
  • •Non-billable category (requires more specific sub-code).
  • •Chapter 9: Diseases of the Circulatory System (I00-I99).

Instructional Notes

Includes
  • Ectasis aorta
Excludes1(Not coded here. Use a different code.)
  • aortic aneurysm and dissection (I71.-)
General instructions are available for the parent sections:
View CH9 NotesView I77 Notes

Clinical Hierarchy

BillableHas subcodes
CH9Diseases of the circulatory system (I00-I99)
I70-I79Diseases of arteries, arterioles and capillaries (I70-I79)
I77Other disorders of arteries and arterioles
I77.8Other specified disorders of arteries and arterioles
I77.81Aortic ectasiaNot billable
I77.810Thoracic aortic ectasiaBillable
I77.811Abdominal aortic ectasiaBillable
I77.812Thoracoabdominal aortic ectasiaBillable
I77.819Aortic ectasia, unspecified siteBillable

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to I77.81:

categoryI77
Other disorders of arteries and arterioles
View context instructions
chapterCH9
Diseases of the circulatory system (I00-I99)
View context instructions

MS-DRG Classification

2026

No direct MS-DRG triggers identified.

Cross Reference

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