ICD-10-CM 2027
ICD-10 code for artery peripheral aberrant
From the official ICD-10-CM alphabetic index entry “Aberrant (congenital) › artery (peripheral)”. Page updated September 29, 2026.
About coding artery peripheral aberrant
The ICD-10-CM code for artery peripheral aberrant is Q27.8 (Other specified congenital malformations of peripheral vascular system). The official index lists 14 more specific codes, so check the documentation for details such as type, cause, site or severity before settling on Q27.8.
Within Q27, choose Q27.8 (Other specified congenital malformations of peripheral vascular system) only when documentation doesn't support a more specific option: congenital absence and hypoplasia of umbilical artery (Q27.0), congenital renal artery stenosis (Q27.1), other congenital malformations of renal artery (Q27.2), arteriovenous malformation (peripheral) (Q27.3), congenital phlebectasia (Q27.4) and congenital malformation of peripheral vascular system, unspecified (Q27.9).
Don't report Q27.8 together with the conditions in its Excludes1 note: arteriovenous malformation (Q27.3-).
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
More specific artery peripheral aberrant codes (official index)
- basilar NEC Q28.1 — Other malformations of precerebral vessels
- cerebral 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
- eye Q15.8 — Other specified congenital malformations of eye
- lower limb Q27.8 — Other specified congenital malformations of peripheral vascular system
- precerebral Q28.1 — Other malformations of precerebral vessels
- pulmonary Q25.79 — Other congenital malformations of pulmonary artery
- renal Q27.2 — Other congenital malformations of renal artery
- retina Q14.1 — Congenital malformation of retina
- specified site NEC Q27.8 — Other specified congenital malformations of peripheral vascular system
- subclavian Q27.8 — Other specified congenital malformations of peripheral vascular system
- upper limb Q27.8 — Other specified congenital malformations of peripheral vascular system
- vertebral Q28.1 — Other malformations of precerebral vessels
Don't confuse with (Excludes1 for Q27.8)
- arteriovenous malformation (Q27.3-)
Common questions about artery peripheral aberrant ICD-10 codes
What is the ICD-10 code for artery peripheral aberrant?
- Q27.8 — Other specified congenital malformations of peripheral vascular system. More specific codes apply when the documentation supports them: Q28.1, Q28.3, Q24.5, Q27.8 and others below.
What is the ICD-10 code for basilar nec artery peripheral aberrant?
- Q28.1 — Other malformations of precerebral vessels.
What is the ICD-10 code for cerebral artery peripheral aberrant?
- Q28.3 — Other malformations of cerebral vessels.
What is the ICD-10 code for coronary artery peripheral aberrant?
- Q24.5 — Malformation of coronary vessels.
What is the ICD-10 code for digestive system artery peripheral aberrant?
- Q27.8 — Other specified congenital malformations of peripheral vascular system.
What is the ICD-10 code for eye artery peripheral aberrant?
- Q15.8 — Other specified congenital malformations of eye.
What is the ICD-10 code for lower limb artery peripheral aberrant?
- Q27.8 — Other specified congenital malformations of peripheral vascular system.
Is Q27.8 billable?
- Yes. Q27.8 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can Q27.8 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict Q27.8 as a principal diagnosis.
Is Q27.8 a CC or MCC?
- No. Q27.8 is neither a CC nor an MCC under MS-DRG v44.0.