I71.01 Dissection of thoracic aorta

Non-billable header with 4 child codes.

Applies from I71 Aortic aneurysm and dissection

Code first

• , if applicable:
• syphilitic aortic aneurysm (A52.01)
• traumatic aortic aneurysm (S25.09, S35.09)

Codes under I71.01

• I71.010 Dissection of ascending aorta
• I71.011 Dissection of aortic arch
• I71.012 Dissection of descending thoracic aorta
• I71.019 Dissection of thoracic aorta, unspecified

Approximate ICD-9-CM (GEMs)

• 441.01 Dissection of aorta, thoracic

Code annotations containing back-references to I71.01

Back-references to I71.0

• Use Additional: I16.1 Hypertensive emergency ("aortic dissection (I71.0-)")
• Type 2 Excludes: I77.7 Other arterial dissection ("dissection of aorta (I71.0-)")

Back-references to I71

• Type 2 Excludes: I72 Other aneurysm ("aneurysm (of) aorta (I71.-)")
• Type 1 Excludes: I77.81 Aortic ectasia ("aortic aneurysm and dissection (I71.-)")

Nearby codes

• I71 Aortic aneurysm and dissection
• I71.0 Dissection of aorta
• I71.00 Dissection of unspecified site of aorta
• I71.01 Dissection of thoracic aorta (this code)
• I71.010 Dissection of ascending aorta
• I71.011 Dissection of aortic arch
• I71.012 Dissection of descending thoracic aorta
• I71.019 Dissection of thoracic aorta, unspecified
• I71.02 Dissection of abdominal aorta