ICD-10 Code I71.40 – Abdominal aortic aneurysm, without rupture, unspecified (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code I71.40 – Abdominal aortic aneurysm, without rupture, unspecified
What it is
This code identifies an abdominal aortic aneurysm that has not ruptured, with no further detail documented about location or type. Use it when the chart confirms an abdominal aortic aneurysm but does not specify more precisely.
Clinical signs
Clinical features vary; refer to documentation. Many patients have no symptoms, while some may have abdominal, back, or pulsatile abdominal findings noted on exam or imaging.
When to use this code
Use I71.40 when imaging, operative notes, or provider assessment documents an abdominal aortic aneurysm without rupture and no more specific abdominal aortic aneurysm code is supported. It also fits when the record confirms the diagnosis but does not identify a subtype or segment. Check documentation if laterality or extent is described elsewhere.
Do not use for
Do not use this code for ruptured abdominal aortic aneurysm or for thoracic aortic aneurysm diagnoses. If the record specifies a more detailed abdominal aortic aneurysm type, code that instead.
Coding tip
Code to the highest specificity available in the record, and verify whether the aneurysm is ruptured, dissecting, or more precisely described before assigning I71.40.