ICD-10-CM code · FY2027
I71 Aortic aneurysm and dissection
Header codeNot billable: use one of the 31 billable codes below
About I71
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Coding notes for I71
Code first Report the underlying condition's code before this one.
Chapter 9 notes (apply to every code in it)
Excludes2 Not part of this condition, but a patient can have both: report both codes when both apply.
- 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.-)
Codes under I71 39
- I71.0 Dissection of aortaHeader
- I71.00 Dissection of unspecified site of aortaBillable
- I71.01 Dissection of thoracic aortaHeader
- I71.010 Dissection of ascending aortaBillable
- I71.011 Dissection of aortic archBillable
- I71.012 Dissection of descending thoracic aortaBillable
- I71.019 Dissection of thoracic aorta, unspecifiedBillable
- I71.02 Dissection of abdominal aortaBillable
- I71.03 Dissection of thoracoabdominal aortaBillable
- I71.1 Thoracic aortic aneurysm, rupturedHeader
- I71.10 Thoracic aortic aneurysm, ruptured, unspecifiedBillable
- I71.11 Aneurysm of the ascending aorta, rupturedBillable
- I71.12 Aneurysm of the aortic arch, rupturedBillable
- I71.13 Aneurysm of the descending thoracic aorta, rupturedBillable
- I71.2 Thoracic aortic aneurysm, without ruptureHeader
- I71.20 Thoracic aortic aneurysm, without rupture, unspecifiedBillable
- I71.21 Aneurysm of the ascending aorta, without ruptureBillable
- I71.22 Aneurysm of the aortic arch, without ruptureBillable
- I71.23 Aneurysm of the descending thoracic aorta, without ruptureBillable
- I71.3 Abdominal aortic aneurysm, rupturedHeader
- I71.30 Abdominal aortic aneurysm, ruptured, unspecifiedBillable
- I71.31 Pararenal abdominal aortic aneurysm, rupturedBillable
- I71.32 Juxtarenal abdominal aortic aneurysm, rupturedBillable
- I71.33 Infrarenal abdominal aortic aneurysm, rupturedBillable
- I71.4 Abdominal aortic aneurysm, without ruptureHeader
- I71.40 Abdominal aortic aneurysm, without rupture, unspecifiedBillable
- I71.41 Pararenal abdominal aortic aneurysm, without ruptureBillable
- I71.42 Juxtarenal abdominal aortic aneurysm, without ruptureBillable
- I71.43 Infrarenal abdominal aortic aneurysm, without ruptureBillable
- I71.5 Thoracoabdominal aortic aneurysm, rupturedHeader
- I71.50 Thoracoabdominal aortic aneurysm, ruptured, unspecifiedBillable
- I71.51 Supraceliac aneurysm of the thoracoabdominal aorta, rupturedBillable
- I71.52 Paravisceral aneurysm of the thoracoabdominal aorta, rupturedBillable
- I71.6 Thoracoabdominal aortic aneurysm, without ruptureHeader
- I71.60 Thoracoabdominal aortic aneurysm, without rupture, unspecifiedBillable
- I71.61 Supraceliac aneurysm of the thoracoabdominal aorta, without ruptureBillable
- I71.62 Paravisceral aneurysm of the thoracoabdominal aorta, without ruptureBillable
- I71.8 Aortic aneurysm of unspecified site, rupturedBillable
- I71.9 Aortic aneurysm of unspecified site, without ruptureBillable
Other categories in I70-I79
- I70 AtherosclerosisHeader
- I72 Other aneurysmHeader
- I73 Other peripheral vascular diseasesHeader
- I74 Arterial embolism and thrombosisHeader
- I75 AtheroembolismHeader
- I76 Septic arterial embolismBillable
- I77 Other disorders of arteries and arteriolesHeader
- I78 Diseases of capillariesHeader
- I79 Disorders of arteries, arterioles and capillaries in diseases classified elsewhereHeader
Latest research on aortic aneurysm
- Aspirin may slow the progression of abdominal aortic aneurysm
- #VisualAbstract: Thoracic endovascular aortic repair is not superior to medical therapy for acute uncomplicated type B aortic dissection
- Initial thoracic endovascular aortic repair not associated with reduced mortality and morbidity compared to medical therapy for acute uncomplicated type B aortic dissection
- Greater thoracic aortic aneurysm size associated with worse long-term outcomes
- Decision aids during surgical consultation effective in aligning patient preferences when choosing between open repair and endovascular repair for abdominal aortic aneurysms
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See 2MM+ plansICD-10-CM FY2027 code set, as published by the CDC National Center for Health Statistics (NCHS) and CMS, effective October 1, 2026 to September 30, 2027. Codes, titles and notes are shown as published. Check payer rules and the official guidelines before billing. This page is not medical advice.
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