Q28.1
BillableOther malformations of precerebral vessels
Other malformations of precerebral vessels
Coding Notes
Inclusion Terms
Alternative clinical terms for this condition
- Congenital malformation of precerebral vessels NOS
- Congenital precerebral aneurysm (nonruptured)
Excludes 1
Codes that cannot be used together with this code (mutual exclusion)
Excludes 2
Conditions not included here, but the patient may have both
Related Codes(5)
Q28.0Arteriovenous malformation of precerebral vessels
Q28.2Arteriovenous malformation of cerebral vessels
Q28.3Other malformations of cerebral vessels
Q28.8Oth congenital malformations of circulatory system
Q28.9Congenital malformation of circulatory system, unspecified
ICD-11 Equivalents(1)
ICD-11 Equivalents
View full mappingCorresponding ICD-11 codes from the WHO crosswalk mapping
Also Known As / Clinical Terms(35)
SNOMED CT
- Congenital anomaly of carotid artery92997002
- Congenital malposition of carotid artery93312006
- Congenital malpositioned carotid artery93312006
- Retro-oesophageal carotid artery95235009
- Retroesophageal carotid artery95235009
- CCA - Isolation of common carotid artery253699002
- Isolation of common carotid artery253699002
- Isolation of left common carotid artery445109004
- Congenital aneurysm of precerebral artery783630000
- Congenital hypoplasia of carotid artery1144395006
- Congenital hypoplasia of posterior communicating artery1144546005
- Congenital hypoplastic posterior communicating artery1144546005
- Congenital hypoplasia of vertebral artery1144860001
- Congenital hypoplasia of internal carotid artery1149058004
- Congenital fenestration of basilar artery16520041000119104
UMLS
Clinical Terms
- Congenital hypoplastic posterior communicating artery
- Congenital anomaly of carotid artery
- Congenital malformation of precerebral vessels NOS
- Congenital hypoplasia of carotid artery
- Congenital hypoplasia of internal carotid artery
- Congenital hypoplasia of posterior communicating artery
- Retro-oesophageal carotid artery
- Congenital precerebral aneurysm (nonruptured)
- Isolation of common carotid artery
- Congenital malposition of carotid artery
- Congenital hypoplasia of vertebral artery
- Congenital malpositioned carotid artery
- CCA - Isolation of common carotid artery
- Congenital aneurysm of precerebral artery
- Retroesophageal carotid artery
- Isolation of left common carotid artery
- Congenital fenestration of basilar artery
Frequently Asked Questions
What is the ICD-10 code for other malformations of precerebral vessels?
The ICD-10-CM code for other malformations of precerebral vessels is Q28.1. The full clinical description is "Other malformations of precerebral vessels". Q28.1 is a billable/specific code that can be used on insurance claims and medical billing.
What does ICD-10 code Q28.1 mean?
ICD-10-CM code Q28.1 represents “Other malformations of precerebral vessels”. It is classified under Chapter 17: Congenital Malformations, Deformations and Chromosomal Abnormalities and is a billable/specific code that can be used on a claim.
Is Q28.1 a billable code?
Yes, Q28.1 is a billable/specific ICD-10-CM code and can be used to indicate a diagnosis on a medical claim.
What chapter is Q28.1 in?
Q28.1 is in Chapter 17: Congenital Malformations, Deformations and Chromosomal Abnormalities (codes Q00-Q99).
What codes cannot be used with Q28.1?
Q28.1 has Excludes1 notes indicating codes that cannot be used together with it, including: congenital aneurysm NOS (Q27.8); congenital coronary aneurysm (Q24.5); ruptured cerebral arteriovenous malformation (I60.8); and 1 more.
What SNOMED CT codes does Q28.1 map to?
Q28.1 maps to 11 SNOMED CT concepts: 253699002, 783630000, 92997002, 16520041000119104, 1144395006, and 6 more. SNOMED CT is a clinical terminology used in electronic health records.
What are the UMLS CUIs for Q28.1?
Q28.1 is linked to 3 UMLS Concept Unique Identifiers: C2910154, C2910155, C0478006. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.
How does Q28.1 relate to ICF functioning codes?
ICF (International Classification of Functioning, Disability and Health) codes describe how conditions like other malformations of precerebral vessels affect a person's functioning — body functions, activities, participation, and environmental factors. AutoICD provides ICF Core Sets for 12+ conditions and can map clinical text to ICF categories automatically. Browse the ICF directory to explore functioning codes.
What is the ICD-11 equivalent of Q28.1?
Q28.1 maps to the ICD-11 code: LA90.41 (Congenital precerebral nonruptured aneurysm).
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Includes SNOMED Clinical Terms® (SNOMED CT®) used by permission of SNOMED International. Includes content from the UMLS Metathesaurus, courtesy of the U.S. National Library of Medicine.