FY2027 ICD-10-CM reference
I72.0: Aneurysm of carotid artery
By the HCC Buddy Coding Team
The official ICD-10-CM descriptor is Aneurysm of carotid artery. The FY2027 annual edition starts October 1, 2026. Check the edition that applies to the encounter or inpatient discharge, including any April update.
Billable code. Verified against the official FY2027 order file.
FY2027 Tabular instructions
Instructions below include applicable chapter, section and parent-code notes. Each note identifies where it appears in the official source.
Excludes2
certain conditions originating in the perinatal period (P04-P96)
Source: I00-I99 (chapter, inherited).
Excludes2
certain infectious and parasitic diseases (A00-B99)
Source: I00-I99 (chapter, inherited).
Excludes2
complications of pregnancy, childbirth and the puerperium (O00-O9A)
Source: I00-I99 (chapter, inherited).
Excludes2
congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
Source: I00-I99 (chapter, inherited).
Excludes2
endocrine, nutritional and metabolic diseases (E00-E88)
Source: I00-I99 (chapter, inherited).
Excludes2
injury, poisoning and certain other consequences of external causes (S00-T88)
Source: I00-I99 (chapter, inherited).
Excludes2
neoplasms (C00-D49)
Source: I00-I99 (chapter, inherited).
Excludes2
symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
Source: I00-I99 (chapter, inherited).
Excludes2
systemic connective tissue disorders (M30-M36)
Source: I00-I99 (chapter, inherited).
Excludes2
transient cerebral ischemic attacks and related syndromes (G45.-)
Source: I00-I99 (chapter, inherited).
Includes
aneurysm (cirsoid) (false) (ruptured)
Source: I72 (category, inherited).
Excludes2
acquired aneurysm (I77.0)
Source: I72 (category, inherited).
Excludes2
aneurysm (of) aorta (I71.-)
Source: I72 (category, inherited).
Excludes2
aneurysm (of) arteriovenous NOS (Q27.3-)
Source: I72 (category, inherited).
Excludes2
carotid artery dissection (I77.71)
Source: I72 (category, inherited).
Excludes2
cerebral (nonruptured) aneurysm (I67.1)
Source: I72 (category, inherited).
Excludes2
coronary aneurysm (I25.4)
Source: I72 (category, inherited).
Excludes2
coronary artery dissection (I25.42)
Source: I72 (category, inherited).
Excludes2
dissection of artery NEC (I77.79)
Source: I72 (category, inherited).
Excludes2
dissection of precerebral artery, congenital (nonruptured) (Q28.1)
Source: I72 (category, inherited).
Excludes2
heart aneurysm (I25.3)
Source: I72 (category, inherited).
Excludes2
iliac artery dissection (I77.72)
Source: I72 (category, inherited).
Excludes2
precerebral artery, congential (nonruptured) (Q28.1)
Source: I72 (category, inherited).
Excludes2
pulmonary artery aneurysm (I28.1)
Source: I72 (category, inherited).
Excludes2
renal artery dissection (I77.73)
Source: I72 (category, inherited).
Excludes2
retinal aneurysm (H35.0)
Source: I72 (category, inherited).
Excludes2
ruptured cerebral aneurysm (I60.7)
Source: I72 (category, inherited).
Excludes2
varicose aneurysm (I77.0)
Source: I72 (category, inherited).
Excludes2
vertebral artery dissection (I77.74)
Source: I72 (category, inherited).
Instructional note
Aneurysm of common carotid artery
Source: I72.0 (self, direct).
Instructional note
Aneurysm of external carotid artery
Source: I72.0 (self, direct).
Instructional note
Aneurysm of internal carotid artery, extracranial portion
Source: I72.0 (self, direct).
Excludes1
aneurysm of internal carotid artery, intracranial portion (I67.1)
Source: I72.0 (self, direct).
Excludes1
aneurysm of internal carotid artery NOS (I67.1)
Source: I72.0 (self, direct).
Compare the FY2027 additions, removals and billable-status changes
What does I72.0 mean in FY2027?
The official ICD-10-CM descriptor is Aneurysm of carotid artery. The FY2027 annual edition starts October 1, 2026. Check the edition that applies to the encounter or inpatient discharge, including any April update.
Is I72.0 billable in FY2027?
The FY2027 order file marks I72.0 as billable. Check the complete Tabular instructions and documentation before assigning it.
Does I72.0 map to an HCC?
I72.0 has no CMS-HCC V28 category in the CMS 2027 Initial ICD-10-CM Mappings (payment year 2027, 2026 dates of service). ESRD, RxHCC, PACE and HHS-HCC mappings are still pending verification for FY2027.
Source: CMS FY2027 ICD-10-CM order file. Read the FY2027 Official Guidelines.
Review the FY2026 April edition