I72.9 Aneurysm of unspecified site

Billable ICD-10-CM code, FY2026.

Applies from I72 Other aneurysm

Includes

• aneurysm (cirsoid) (false) (ruptured)

Excludes2 (not included here)

• acquired aneurysm (I77.0)
• aneurysm (of) aorta (I71.-)
• aneurysm (of) arteriovenous NOS (Q27.3-)
• carotid artery dissection (I77.71)
• cerebral (nonruptured) aneurysm (I67.1)
• coronary aneurysm (I25.4)
• coronary artery dissection (I25.42)
• dissection of artery NEC (I77.79)
• dissection of precerebral artery, congenital (nonruptured) (Q28.1)
• heart aneurysm (I25.3)
• iliac artery dissection (I77.72)
• precerebral artery, congential (nonruptured) (Q28.1)
• pulmonary artery aneurysm (I28.1)
• renal artery dissection (I77.73)
• retinal aneurysm (H35.0)
• ruptured cerebral aneurysm (I60.7)
• varicose aneurysm (I77.0)
• vertebral artery dissection (I77.74)

Risk adjustment (HCC)

• CMS-HCC V22: HCC 108 — Vascular Disease
• ESRD V24: HCC 108

MS-DRG index

Defines the logic of DRG(s) 299-301 in MDC 05.

Approximate ICD-9-CM (GEMs)

• 442.9 Aneurysm of unspecified site

Diagnosis Index entries for I72.9

• Aneurysm (anastomotic) (artery) (cirsoid) (diffuse) (false) (fusiform) (multiple) (saccular)
• Aneurysm (anastomotic) (artery) (cirsoid) (diffuse) (false) (fusiform) (multiple) (saccular) › arteriosclerotic
• Aneurysm (anastomotic) (artery) (cirsoid) (diffuse) (false) (fusiform) (multiple) (saccular) › infective
• Aneurysm (anastomotic) (artery) (cirsoid) (diffuse) (false) (fusiform) (multiple) (saccular) › mycotic
• Aneurysm (anastomotic) (artery) (cirsoid) (diffuse) (false) (fusiform) (multiple) (saccular) › racemose (peripheral)

Nearby codes

• I72.3 Aneurysm of iliac artery
• I72.4 Aneurysm of artery of lower extremity
• I72.5 Aneurysm of other precerebral arteries
• I72.6 Aneurysm of vertebral artery
• I72.8 Aneurysm of other specified arteries
• I72.9 Aneurysm of unspecified site (this code)