I77.81 Aortic ectasia

Non-billable header with 4 child codes.

Applicable to

• Ectasis aorta

Excludes1 (never code together)

• aortic aneurysm and dissection (I71.-)

Applies from I77 Other disorders of arteries and arterioles

Excludes2 (not included here)

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

Codes under I77.81

• I77.810 Thoracic aortic ectasia
• I77.811 Abdominal aortic ectasia
• I77.812 Thoracoabdominal aortic ectasia
• I77.819 Aortic ectasia, unspecified site

Nearby codes

• I77.75 Dissection of other precerebral arteries
• I77.76 Dissection of artery of upper extremity
• I77.77 Dissection of artery of lower extremity
• I77.79 Dissection of other specified artery
• I77.8 Other specified disorders of arteries and arterioles
• I77.81 Aortic ectasia (this code)
• I77.810 Thoracic aortic ectasia
• I77.811 Abdominal aortic ectasia
• I77.812 Thoracoabdominal aortic ectasia
• I77.819 Aortic ectasia, unspecified site
• I77.82 Antineutrophilic cytoplasmic antibody [ANCA] vasculitis