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I71Non-billableSave

I71 - Aortic aneurysm and dissection

ICD-10-CM Chapter 9: Diseases of the circulatory system · I70-I79 Diseases of arteries, arterioles and capillaries (I70-I79) · Top-level category · FY2027

Coding Guidance

I71 is a non-billable heading. Report one of the 9 more specific codes below.

Includes, Excludes and Coding Notes

Code FirstFrom I71

Sequence the underlying condition before this code.

  • , if applicable:
  • syphilitic aortic aneurysm (A52.01)
  • traumatic aortic aneurysm (S25.09, S35.09)
Excludes 2 — Not Included HereFrom Chapter I00-I99

Not part of this code; report both codes when the patient has both conditions.

  • 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 (9)

I71.0Dissection of aorta→I71.1Thoracic aortic aneurysm, ruptured→I71.2Thoracic aortic aneurysm, without rupture→I71.3Abdominal aortic aneurysm, ruptured→I71.4Abdominal aortic aneurysm, without rupture→I71.5Thoracoabdominal aortic aneurysm, ruptured→I71.6Thoracoabdominal aortic aneurysm, without rupture→I71.8Aortic aneurysm of unspecified site, ruptured→I71.9Aortic aneurysm of unspecified site, without rupture→

Related condition guides

Documentation requirements, coding pitfalls and FAQs for conditions coded with I71.