I71.2
Thoracic aortic aneurysm, without rupture
I71.2 is a non-billable ICD-10-CM code header for thoracic aortic aneurysm, without rupture. 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 I71.20 Thoracic aortic aneurysm, without rupture, unspecified; I71.21 Aneurysm of the ascending aorta, without rupture; I71.22 Aneurysm of the aortic arch, without rupture and I71.23 Aneurysm of the descending thoracic aorta, without rupture. 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.
Excludes2
Not included here. Both codes may be reported if the patient has both conditions.
Also from chapter/block level (10 notes)
- 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.-)