ICD-10 Code for Aneurysm
Also indexed as (anastomotic) (artery) (cirsoid) (diffuse) (false) (fusiform) (multiple) (saccular)
The ICD-10-CM code for aneurysm is I72.9 — Aneurysm of unspecified site. This is the code the Alphabetic Index gives for aneurysm with no further qualifier, valid for FY2027 (October 1, 2026 – September 30, 2027).
BillableUnspecified
I72.9 is billable but unspecified. If the documentation names a type, site or cause, one of the more specific codes below is likely expected.
Which aneurysm code should you use?
The Alphabetic Index lists 69 codes under Aneurysm. Which one applies depends on the qualifier documented in the record — the type, site, cause, or associated condition. Find the qualifier below, then verify the code in the Tabular List before using it.
By type
| abdominal | I71.40 | Abdominal aortic aneurysm, without rupture, unspecified | |
| aorta, aortic | I71.9 | Aortic aneurysm of unspecified site, without rupture | |
| arteriosclerotic | I72.9 | Aneurysm of unspecified site | |
| basilar | I72.5 | Aneurysm of other precerebral arteries | |
| berry | I67.1 | Cerebral aneurysm, nonruptured | |
| brain | I67.1 | Cerebral aneurysm, nonruptured | |
| cardiac | I25.3 | Aneurysm of heart | |
| carotid artery | I72.0 | Aneurysm of carotid artery | |
| cavernous sinus | I67.1 | Cerebral aneurysm, nonruptured | |
| celiac | I72.8 | Aneurysm of other specified arteries | |
| central nervous system, syphilitic | A52.05 | Other cerebrovascular syphilis | |
| circle of Willis | I67.1 | Cerebral aneurysm, nonruptured | |
| common iliac artery | I72.3 | Aneurysm of iliac artery | |
| congenital | Q27.8 | Other specified congenital malformations of peripheral vascular system | |
| coronary | I25.41 | Coronary artery aneurysm | |
| cylindroid | I71.9 | Aortic aneurysm of unspecified site, without rupture | |
| ductus arteriosus | Q25.0 | Patent ductus arteriosus | |
| endocardial, infective | I33.0 | Acute and subacute infective endocarditis | |
| femoral | I72.4 | Aneurysm of artery of lower extremity | |
| gastroduodenal | I72.8 | Aneurysm of other specified arteries | |
| gastroepiploic | I72.8 | Aneurysm of other specified arteries | |
| heart | I25.3 | Aneurysm of heart | |
| hepatic | I72.8 | Aneurysm of other specified arteries | |
| iliac | I72.3 | Aneurysm of iliac artery | |
| infective | I72.9 | Aneurysm of unspecified site | |
| innominate | I72.8 | Aneurysm of other specified arteries | |
| intrathoracic | I71.20 | Thoracic aortic aneurysm, without rupture, unspecified | |
| lower limb | I72.4 | Aneurysm of artery of lower extremity | |
| lung | I28.1 | Aneurysm of pulmonary artery | |
| mediastinal | I72.8 | Aneurysm of other specified arteries | |
| miliary | I67.1 | Cerebral aneurysm, nonruptured | |
| mitral | I34.89 | Other nonrheumatic mitral valve disorders | |
| mycotic | I72.9 | Aneurysm of unspecified site | |
| neck | I72.0 | Aneurysm of carotid artery | |
| pancreaticoduodenal | I72.8 | Aneurysm of other specified arteries | |
| patent ductus arteriosus | Q25.0 | Patent ductus arteriosus | |
| peripheral NEC | I72.8 | Aneurysm of other specified arteries | |
| popliteal | I72.4 | Aneurysm of artery of lower extremity | |
| pulmonary | I28.1 | Aneurysm of pulmonary artery | |
| racemose | I72.9 | Aneurysm of unspecified site | |
| radial | I72.1 | Aneurysm of artery of upper extremity | |
| Rasmussen NEC | A15.0 | Tuberculosis of lung | |
| renal | I72.2 | Aneurysm of renal artery | |
| sinus of Valsalva | Q25.43 | Congenital aneurysm of aorta | |
| specified NEC | I72.8 | Aneurysm of other specified arteries | |
| spinal | I72.8 | Aneurysm of other specified arteries | |
| splenic | I72.8 | Aneurysm of other specified arteries | |
| subclavian | I72.8 | Aneurysm of other specified arteries | |
| superior mesenteric | I72.8 | Aneurysm of other specified arteries | |
| syphilitic | A52.01 | Syphilitic aneurysm of aorta | |
| thoracoabdominal | I71.60 | Thoracoabdominal aortic aneurysm, without rupture, unspecified | |
| tricuspid | I07.8 | Other rheumatic tricuspid valve diseases | |
| ulnar | I72.1 | Aneurysm of artery of upper extremity | |
| upper limb | I72.1 | Aneurysm of artery of upper extremity | |
| venous | I86.8 | Varicose veins of other specified sites | |
| vertebral artery | I72.6 | Aneurysm of vertebral artery | |
| visceral NEC | I72.8 | Aneurysm of other specified arteries |
Aneurysm abdominal
| infrarenal | I71.43 | Infrarenal abdominal aortic aneurysm, without rupture | |
| juxtarenal | I71.42 | Juxtarenal abdominal aortic aneurysm, without rupture | |
| pararenal | I71.41 | Pararenal abdominal aortic aneurysm, without rupture | |
| ruptured | I71.30 | Abdominal aortic aneurysm, ruptured, unspecified | |
| syphilitic | A52.01 | Syphilitic aneurysm of aorta |
Aneurysm aorta, aortic
| abdominal | I71.40 | Abdominal aortic aneurysm, without rupture, unspecified | |
| arch | I71.22 | Aneurysm of the aortic arch, without rupture | |
| arteriosclerotic | I71.9 | Aortic aneurysm of unspecified site, without rupture | |
| ascending | I71.21 | Aneurysm of the ascending aorta, without rupture | |
| congenital | Q25.43 | Congenital aneurysm of aorta | |
| descending | I71.9 | Aortic aneurysm of unspecified site, without rupture | |
| root | Q25.43 | Congenital aneurysm of aorta | |
| ruptured | I71.8 | Aortic aneurysm of unspecified site, ruptured | |
| sinus, congenital | Q25.43 | Congenital aneurysm of aorta | |
| syphilitic | A52.01 | Syphilitic aneurysm of aorta | |
| thoracic | I71.20 | Thoracic aortic aneurysm, without rupture, unspecified | |
| thoracoabdominal | I71.60 | Thoracoabdominal aortic aneurysm, without rupture, unspecified | |
| thorax, thoracic | I71.20 | Thoracic aortic aneurysm, without rupture, unspecified | |
| transverse | I71.22 | Aneurysm of the aortic arch, without rupture | |
| valve | I35.8 | Other nonrheumatic aortic valve disorders |
Aneurysm arteriosclerotic
| cerebral | I67.1 | Cerebral aneurysm, nonruptured |
Aneurysm arteriovenous
Aneurysm berry
| ruptured | I60.7 | Nontraumatic subarachnoid hemorrhage from unspecified intracranial artery |
Aneurysm brain
| arteriosclerotic | I67.1 | Cerebral aneurysm, nonruptured | |
| arteriovenous | Q28.2 | Arteriovenous malformation of cerebral vessels | |
| berry | I67.1 | Cerebral aneurysm, nonruptured | |
| congenital | Q28.3 | Other malformations of cerebral vessels | |
| meninges | I67.1 | Cerebral aneurysm, nonruptured | |
| miliary | I67.1 | Cerebral aneurysm, nonruptured | |
| mycotic | I67.1 | Cerebral aneurysm, nonruptured | |
| syphilitic | A52.05 | Other cerebrovascular syphilis |
Aneurysm carotid artery
Aneurysm cavernous sinus
| arteriovenous | Q28.3 | Other malformations of cerebral vessels |
Aneurysm circle of Willis
Aneurysm congenital
| aorta | Q25.43 | Congenital aneurysm of aorta | |
| brain | Q28.3 | Other malformations of cerebral vessels | |
| coronary | Q24.5 | Malformation of coronary vessels | |
| digestive system | Q27.8 | Other specified congenital malformations of peripheral vascular system | |
| lower limb | Q27.8 | Other specified congenital malformations of peripheral vascular system | |
| pulmonary | Q25.79 | Other congenital malformations of pulmonary artery | |
| retina | Q14.1 | Congenital malformation of retina | |
| specified site NEC | Q27.8 | Other specified congenital malformations of peripheral vascular system | |
| upper limb | Q27.8 | Other specified congenital malformations of peripheral vascular system |
Aneurysm coronary
Aneurysm cylindroid
Aneurysm infective
| endocardial | I33.0 | Acute and subacute infective endocarditis |
Aneurysm innominate
| syphilitic | A52.09 | Other cardiovascular syphilis |
Aneurysm intrathoracic
Aneurysm mediastinal
| syphilitic | A52.09 | Other cardiovascular syphilis |
Aneurysm mycotic
| endocardial | I33.0 | Acute and subacute infective endocarditis |
Aneurysm peripheral NEC
| congenital | Q27.8 | Other specified congenital malformations of peripheral vascular system |
Index terms and codes are reproduced from the official ICD-10-CM FY2027 release. The Alphabetic Index is a finding aid — a code must always be verified in the Tabular List before it is reported. Data sources