ICD-10-CM Alphabetic Index · FY 2026 225 Entries

Aneurysm in the ICD-10-CM Index ICD-10-CM

The main term Aneurysm (anastomotic) (artery) (cirsoid) (diffuse) (false) (fusiform) (multiple) (saccular) carries 225 index entries pointing to 68 ICD-10-CM codes. The default entry is I72.9, the code the bare main term maps to; every indented line below refines the term by site, cause, or type. Verify any candidate code in the Tabular List before using it.

✓ Built from the official CMS FY 2026 index fileEffective Oct 1, 2025 – Sep 30, 2026

225

Index Entries

Codes Referenced

I72.9

Default Code

Letter

225 of 225 shown

ICD-10-CM

Index Entries Under Aneurysm 225 entries · 68 codes

Aneurysm (anastomotic) (artery) (cirsoid) (diffuse) (false) (fusiform) (multiple) (saccular) I72.9

abdominal (aorta) I71.40

infrarenal I71.43

ruptured I71.33

juxtarenal I71.42

ruptured I71.32

pararenal I71.41

ruptured I71.31

ruptured I71.30

syphilitic A52.01

aorta, aortic (nonsyphilitic) I71.9

abdominal I71.40

dissecting see Dissection, aorta, abdominal

ruptured I71.30

arch I71.22

ruptured I71.12

arteriosclerotic I71.9

ruptured I71.8

ascending I71.21

ruptured I71.11

congenital Q25.43

descending I71.9

abdominal I71.40

ruptured I71.30

ruptured I71.8

thoracic I71.23

ruptured I71.13

dissecting see Dissection, aorta

root Q25.43

ruptured I71.8

sinus, congenital Q25.43

syphilitic A52.01

thoracic I71.20

ruptured I71.10

thoracoabdominal I71.60

paravisceral I71.62

ruptured I71.52

ruptured I71.50

supraceliac I71.61

ruptured I71.51

thorax, thoracic I71.20

arch I71.22

ruptured I71.12

ascending I71.21

ruptured I71.11

descending I71.23

ruptured I71.13

ruptured I71.10

arch I71.12

ascending I71.11

descending I71.13

transverse I71.22

ruptured I71.12

valve (heart) I35.8 see also Endocarditis, aortic

arteriosclerotic I72.9

cerebral I67.1

ruptured see Hemorrhage, intracranial, subarachnoid

arteriovenous (congenital) see also Malformation, arteriovenous

acquired I77.0

brain I67.1

ruptured see Aneurysm, arteriovenous, brain, ruptured

coronary I25.41

pulmonary I28.0

brain Q28.2

ruptured I60.8

intracerebral I61.8

intraparenchymal I61.8

intraventricular I61.5

subarachnoid I60.8

peripheral see Malformation, arteriovenous, peripheral

precerebral vessels Q28.0

specified site NEC see also Malformation, arteriovenous

acquired I77.0

basal see Aneurysm, brain

basilar (trunk) I72.5

berry (congenital) (nonruptured) I67.1

ruptured I60.7

brain I67.1

arteriosclerotic I67.1

ruptured see Hemorrhage, intracranial, subarachnoid

arteriovenous (congenital) (nonruptured) Q28.2

acquired I67.1

ruptured see Aneurysm, arteriovenous, brain, ruptured

berry (congenital) (nonruptured) I67.1

ruptured I60.7 see also Hemorrhage, intracranial, subarachnoid

congenital Q28.3

ruptured I60.7

meninges I67.1

ruptured I60.8

miliary (congenital) (nonruptured) I67.1

ruptured I60.7 see also Hemorrhage, intracranial, subarachnoid

mycotic I67.1

with endocarditis see also Endocarditis

ruptured see Hemorrhage, intracranial, subarachnoid

syphilitic (hemorrhage) A52.05

cardiac (false) I25.3 see also Aneurysm, heart

carotid artery (common) (external) I72.0

internal (intracranial) I67.1

extracranial portion I72.0

ruptured into brain I60.0 Non-billable

syphilitic A52.09

intracranial A52.05

cavernous sinus I67.1

arteriovenous (congenital) (nonruptured) Q28.3

ruptured I60.8

celiac I72.8

central nervous system, syphilitic A52.05

cerebral see Aneurysm, brain

chest see Aneurysm, thorax

circle of Willis I67.1

congenital Q28.3

ruptured I60.6

common iliac artery I72.3

congenital (peripheral) Q27.8

aorta (root) (sinus) Q25.43

brain Q28.3

ruptured I60.7

coronary Q24.5

digestive system Q27.8

lower limb Q27.8

pulmonary Q25.79

retina Q14.1

specified site NEC Q27.8

upper limb Q27.8

conjunctiva see Abnormality, conjunctiva, vascular

conus arteriosus see Aneurysm, heart

coronary (arteriosclerotic) (artery) I25.41

arteriovenous, congenital Q24.5

congenital Q24.5

ruptured see Infarct, myocardium

syphilitic A52.06

vein I25.89

cylindroid (aorta) I71.9

ruptured I71.8

syphilitic A52.01

ductus arteriosus Q25.0

endocardial, infective (any valve) I33.0

femoral (artery) (ruptured) I72.4

gastroduodenal I72.8

gastroepiploic I72.8

heart (wall) (chronic or with a stated duration of over 4 weeks) I25.3

valve see Endocarditis

hepatic I72.8

iliac (common) (artery) (ruptured) I72.3

infective I72.9

endocardial (any valve) I33.0

innominate (nonsyphilitic) I72.8

syphilitic A52.09

interauricular septum see Aneurysm, heart

interventricular septum see Aneurysm, heart

intrathoracic (nonsyphilitic) I71.20 see also Aneurysm, aorta, thorax

ruptured I71.10 see also Aneurysm, aorta, thorax, ruptured

syphilitic A52.01

lower limb I72.4

lung (pulmonary artery) I28.1

mediastinal (nonsyphilitic) I72.8

syphilitic A52.09

miliary (congenital) I67.1

ruptured see Hemorrhage, intracerebral, subarachnoid, intracranial

mitral (heart) (valve) I34.89

mural see Aneurysm, heart

mycotic I72.9

endocardial (any valve) I33.0

ruptured, brain see Hemorrhage, intracerebral, subarachnoid

myocardium see Aneurysm, heart

neck I72.0

pancreaticoduodenal I72.8

patent ductus arteriosus Q25.0

peripheral NEC I72.8

congenital Q27.8

digestive system Q27.8

lower limb Q27.8

specified site NEC Q27.8

upper limb Q27.8

popliteal (artery) (ruptured) I72.4

precerebral

congenital (nonruptured) Q28.1

specified site, NEC I72.5

pulmonary I28.1

arteriovenous Q25.72

acquired I28.0

syphilitic A52.09

valve (heart) see Endocarditis, pulmonary

racemose (peripheral) I72.9

congenital see Aneurysm, congenital

radial I72.1

Rasmussen NEC A15.0

renal (artery) I72.2

retina see also Disorder, retina, microaneurysms

congenital Q14.1

diabetic see E08-E13 with .3-

sinus of Valsalva Q25.43

specified NEC I72.8

spinal (cord) I72.8

syphilitic (hemorrhage) A52.09

splenic I72.8

subclavian (artery) (ruptured) I72.8

syphilitic A52.09

superior mesenteric I72.8

syphilitic (aorta) A52.01

central nervous system A52.05

congenital (late) A50.54

spine, spinal A52.09

thoracoabdominal (aorta) I71.60

ruptured I71.50

syphilitic A52.01

thorax, thoracic (aorta) (arch) (nonsyphilitic) see Aneurysm, aorta, thorax

ruptured see Aneurysm, aorta, thorax, ruptured

syphilitic A52.01

traumatic (complication) (early), specified site see Injury, blood vessel

tricuspid (heart) (valve) I07.8

ulnar I72.1

upper limb (ruptured) I72.1

valve, valvular see Endocarditis

venous I86.8 see also Varix

congenital Q27.8

digestive system Q27.8

lower limb Q27.8

specified site NEC Q27.8

upper limb Q27.8

ventricle see Aneurysm, heart

vertebral artery I72.6

visceral NEC I72.8

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Related Index Terms

Dissection Injury All index terms starting with A Index to Diseases and Injuries ICD-10-CM Code Lookup

Source: Centers for Medicare & Medicaid Services, FY 2026 ICD-10-CM Index to Diseases and Injuries release files, effective October 1, 2025 through September 30, 2026.