Alphabetic Index FY2027

I71

Aortic aneurysm and dissection

FY2027Chapter 9: Diseases of the circulatory system/I70–I79 Diseases of arteries, arterioles and capillaries

Non-billable headerNot valid on its own. Use one of the more specific codes under it.

I71 is a non-billable ICD-10-CM code category for aortic aneurysm and dissection. Report a more specific code from it instead. It is part of the FY2027 code set, effective October 1, 2026. The more specific codes under it are I71.0 Dissection of aorta; I71.1 Thoracic aortic aneurysm, ruptured; I71.2 Thoracic aortic aneurysm, without rupture; I71.3 Abdominal aortic aneurysm, ruptured and 5 more. Its coding notes include a Code first instruction and 10 Excludes2 entries.

Code first

If the underlying condition listed here is present and known, sequence it first.

This code
  • , if applicable:

Excludes2

Not included here. Both codes may be reported if the patient has both conditions.

Also from chapter/block level (10 notes)
Inherited from Chapter 9 Diseases of the circulatory system
  • certain conditions originating in the perinatal period (P04-P96)
  • certain infectious and parasitic diseases (A00-B99)
  • complications of pregnancy, childbirth and the puerperium (O00-O9A)
  • congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
  • endocrine, nutritional and metabolic diseases (E00-E88)
  • injury, poisoning and certain other consequences of external causes (S00-T88)
  • neoplasms (C00-D49)
  • symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
  • systemic connective tissue disorders (M30-M36)
  • transient cerebral ischemic attacks and related syndromes (G45.-)

More specific codes under I71 9