Alphabetic Index FY2027

I72.9

Aneurysm of unspecified site

FY2027Chapter 9: Diseases of the circulatory system/I70–I79 Diseases of arteries, arterioles and capillaries

BillableComplete code, valid to report

I72.9 (also written I729) is a billable ICD-10-CM diagnosis code for aneurysm of unspecified site. It is part of the FY2027 code set, effective October 1, 2026. It is one of the 9 codes in category I72 (Other aneurysm). The Alphabetic Index lists it under 5 entries. Its coding notes include 28 Excludes2 entries.

Excludes2

Not included here. Both codes may be reported if the patient has both conditions.

Inherited from I72 Other aneurysm
  • 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)
Also from chapter/block level (10 notes)
Inherited from Chapter 9 Diseases of the circulatory system
  • 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.-)

Includes

Further defines or gives examples of the content of the category.

Inherited from I72 Other aneurysm
  • aneurysm (cirsoid) (false) (ruptured)

Alphabetic Index terms

Terms the official Alphabetic Index lists for this code. 5 entries