I71.9: Aortic aneurysm of unspecified site, without rupture

I71.9, aortic aneurysm of unspecified site, without rupture, is listed as a covered diagnosis in 6 Medicare billing and coding articles that apply to 46 HCPCS Level II codes, including J0461 (Injection, atropine sulfate, 0.01 mg), J0153 (Injection, adenosine, 1 mg (not to be used to report any…), J1250 (Injection, dobutamine hydrochloride, per 250 mg). The articles come from 3 Medicare contractors. A listed diagnosis supports medical necessity only; coverage still depends on the LCD's criteria and on documentation in the medical record.

HCPCS Level II codes with I71.9 as a covered diagnosis

21 more codes are listed. See every code with payment by region in Caduvo.

Medicare policy articles listing I71.9

• A56476: Billing and Coding: Cardiac Radionuclide Imaging (Palmetto GBA (MAC - Part A, MAC - Part B); 13 Level II codes). LCD with the same title: L33457
• A52850: Billing and Coding: Cardiac Catheterization and Coronary Angiography (Wellpoint Federal (MAC - Part A, MAC - Part B); 2 Level II codes). LCD with the same title: L33557, L33959
• A56722: Billing and Coding: Intraoperative Neurophysiological Testing (Novitas Solutions, Inc. (MAC - Part A, MAC - Part B); 1 Level II codes). LCD with the same title: L34623, L35003
• A56805: Billing and Coding: Magnetic Resonance Angiography (MRA) (Novitas Solutions, Inc. (MAC - Part A, MAC - Part B); 12 Level II codes). LCD with the same title: L33633, L34372, L34865
• A56775: Billing and Coding: Magnetic Resonance Angiography (Palmetto GBA (MAC - Part A, MAC - Part B); 18 Level II codes). LCD with the same title: L34424
• A56781: Billing and Coding: Transthoracic Echocardiography (TTE) (Wellpoint Federal (MAC - Part A, MAC - Part B); 17 Level II codes). LCD with the same title: L33577, L34338

A diagnosis listed as covered in a billing and coding article supports medical necessity for the article's codes; it does not guarantee payment. Coverage depends on the LCD's criteria, the contractor's jurisdiction and documentation in the medical record.

Other I71 diagnoses (Aortic aneurysm and dissection)

• I71.00 — Dissection of unspecified site of aorta
• I71.010 — Dissection of ascending aorta
• I71.011 — Dissection of aortic arch
• I71.012 — Dissection of descending thoracic aorta
• I71.019 — Dissection of thoracic aorta, unspecified
• I71.02 — Dissection of abdominal aorta
• I71.03 — Dissection of thoracoabdominal aorta
• I71.10 — Thoracic aortic aneurysm, ruptured, unspecified
• I71.11 — Aneurysm of the ascending aorta, ruptured
• I71.12 — Aneurysm of the aortic arch, ruptured
• I71.13 — Aneurysm of the descending thoracic aorta, ruptured
• 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
• I71.23 — Aneurysm of the descending thoracic aorta, without rupture
• I71.30 — Abdominal aortic aneurysm, ruptured, unspecified
• I71.31 — Pararenal abdominal aortic aneurysm, ruptured
• I71.32 — Juxtarenal abdominal aortic aneurysm, ruptured
• I71.33 — Infrarenal abdominal aortic aneurysm, ruptured
• I71.40 — Abdominal aortic aneurysm, without rupture, unspecified
• I71.41 — Pararenal abdominal aortic aneurysm, without rupture
• I71.42 — Juxtarenal abdominal aortic aneurysm, without rupture
• I71.43 — Infrarenal abdominal aortic aneurysm, without rupture
• I71.50 — Thoracoabdominal aortic aneurysm, ruptured, unspecified
• I71.51 — Supraceliac aneurysm of the thoracoabdominal aorta, ruptured
• I71.52 — Paravisceral aneurysm of the thoracoabdominal aorta, ruptured
• I71.60 — Thoracoabdominal aortic aneurysm, without rupture, unspecified
• I71.61 — Supraceliac aneurysm of the thoracoabdominal aorta, without rupture
• I71.62 — Paravisceral aneurysm of the thoracoabdominal aorta, without rupture
• I71.8 — Aortic aneurysm of unspecified site, ruptured

Frequently asked questions

Does Medicare cover I71.9 (Aortic aneurysm of unspecified site, without rupture)?

Medicare covers items and services, not diagnoses. 6 Medicare billing and coding articles list I71.9 as a covered diagnosis for 46 HCPCS Level II codes: the diagnosis can support medical necessity for those codes, but payment still depends on the LCD's coverage criteria and the medical record.

Which HCPCS codes can be billed with ICD-10 I71.9?

The Level II codes from the policies most specific to this diagnosis are J0461 (Injection, atropine sulfate, 0.01 mg, 2 articles); J0153 (Injection, adenosine, 1 mg (not to be used to report any…, 2 articles); J1250 (Injection, dobutamine hydrochloride, per 250 mg, 2 articles); J0280 (Injection, aminophyllin, up to 250 mg, 2 articles); J1245 (Injection, dipyridamole, per 10 mg, 2 articles). Code choice depends on the item supplied; check each code's descriptor.

Which Medicare policy articles list I71.9?

A56476 (Billing and Coding: Cardiac Radionuclide Imaging); A52850 (Billing and Coding: Cardiac Catheterization and Coronary Angiography); A56722 (Billing and Coding: Intraoperative Neurophysiological Testing), and 3 more articles.

What is ICD-10-CM code I71.9?

I71.9 is the ICD-10-CM code for aortic aneurysm of unspecified site, without rupture, in category I71 (Aortic aneurysm and dissection), chapter 9: Diseases of the circulatory system.

Next steps

• Run a reimbursement report for a device billed under J0461
• Watch J0461 for fee, coverage and descriptor changes
• Build a full Medicare revenue model for J0461

Sources: CMS Medicare Coverage Database billing and coding articles (covered ICD-10 code lists and HCPCS links); ICD-10-CM FY2026; CMS HCPCS Level II release October 2026; CMS DMEPOS fee schedule 2026 (non-rural state fees). Not billing or legal advice.

Chapter 9: Diseases of the circulatory system · All diagnoses · HCPCS lookup