I65.1
BillableOcclusion and stenosis of basilar artery
Occlusion and stenosis of basilar artery
Coding Notes
Includes
Conditions included under this code
- embolism of precerebral artery
- narrowing of precerebral artery
- obstruction (complete) (partial) of precerebral artery
- thrombosis of precerebral artery
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
- •certain conditions originating in the perinatal periodP04-P96
- •certain infectious and parasitic diseasesA00-B99
- •complications of pregnancy, childbirth and the puerperiumO9A)O00
- •congenital malformations, deformations, and chromosomal abnormalitiesQ00-Q99
- •endocrine, nutritional and metabolic diseasesE00-E88
- •injury, poisoning and certain other consequences of external causesS00-T88
- •neoplasmsC00-D49
- •symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classifiedR00-R94
- •systemic connective tissue disordersM30-M36
- •transient cerebral ischemic attacks and related syndromesG45
Use Additional Code
Additional codes that should follow this code
Related Codes(4)
ICD-11 Equivalents(1)
ICD-11 Equivalents
View full mappingCorresponding ICD-11 codes from the WHO crosswalk mapping
Also Known As / Clinical Terms(48)
SNOMED CT
- Basilar artery narrowing54519002
- Basilar artery stenosis54519002
- Stenosis of basilar artery54519002
- Basilar artery thrombosis88174006
- Basilar artery embolism111296006
- Basilar artery obstruction195180004
- Basilar artery occlusion195180004
- Occlusion of basilar artery195180004
- Pontine artery occlusion408664007
- Pontine artery thrombosis408665008
- Asymptomatic occlusion of artery703183007
- Asymptomatic occlusion of basilar artery703206009
- Asymptomatic stenosis of intracranial artery724427002
- Occlusion of distal basilar artery870544005
- Occlusion of branch of basilar artery870579007
- Asymptomatic stenosis of basilar artery1204164005
- Basilar artery occlusion without infarction430731000124103
- Occlusion of basilar artery by embolus455811000124105
- Occlusive embolus of basilar artery455811000124105
UMLS
- Basilar artery obstructionC0265098
- Basilar artery occlusionC0265098
- Basilar artery occlusion (disorder)C0265098
- Occlusion and Stenosis of Basilar ArteryC0265098
- Occlusion and stenosis of basilar arteryC0265098
- Occlusion of basilar arteryC0265098
- basilar artery occlusionC0265098
- occlusion basilar arteryC0265098
Clinical Terms
- Basilar artery embolism
- Basilar artery occlusion (disorder)
- Occlusion of basilar artery by embolus
- Occlusive embolus of basilar artery
- Basilar artery obstruction
- Pontine artery occlusion
- Basilar artery stenosis
- Stenosis of basilar artery
- Occlusion of branch of basilar artery
- Asymptomatic occlusion of basilar artery
- Asymptomatic stenosis of intracranial artery
- occlusion basilar artery
- Basilar artery occlusion
- Pontine artery thrombosis
- Basilar artery narrowing
- Asymptomatic stenosis of basilar artery
- Basilar artery occlusion without infarction
- Occlusion of basilar artery
- Basilar artery thrombosis
- Asymptomatic occlusion of artery
- Occlusion of distal basilar artery
Frequently Asked Questions
What is the ICD-10 code for occlusion and stenosis of basilar artery?
The ICD-10-CM code for occlusion and stenosis of basilar artery is I65.1. The full clinical description is "Occlusion and stenosis of basilar artery". I65.1 is a billable/specific code that can be used on insurance claims and medical billing.
What does ICD-10 code I65.1 mean?
ICD-10-CM code I65.1 represents “Occlusion and stenosis of basilar artery”. It is classified under Chapter 9: Diseases of the Circulatory System and is a billable/specific code that can be used on a claim.
Is I65.1 a billable code?
Yes, I65.1 is a billable/specific ICD-10-CM code and can be used to indicate a diagnosis on a medical claim.
What chapter is I65.1 in?
I65.1 is in Chapter 9: Diseases of the Circulatory System (codes I00-I99).
What codes cannot be used with I65.1?
I65.1 has Excludes1 notes indicating codes that cannot be used together with it, including: traumatic intracranial hemorrhage (S06.-); insufficiency, NOS, of precerebral artery (G45.-); insufficiency of precerebral arteries causing cerebral infarction (I63.0-I63.2).
Are additional codes required with I65.1?
Yes, when using I65.1, also report: presence of:; alcohol abuse and dependence (F10.-); exposure to environmental tobacco smoke (Z77.22); history of tobacco dependence (Z87.891); hypertension (I10-I1A); occupational exposure to environmental tobacco smoke (Z57.31); tobacco dependence (F17.-); tobacco use (Z72.0).
What SNOMED CT codes does I65.1 map to?
I65.1 maps to 14 SNOMED CT concepts: 703183007, 703206009, 1204164005, 724427002, 111296006, and 9 more. SNOMED CT is a clinical terminology used in electronic health records.
What are the UMLS CUIs for I65.1?
I65.1 is linked to 1 UMLS Concept Unique Identifier: C0265098. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.
How does I65.1 relate to ICF functioning codes?
ICF (International Classification of Functioning, Disability and Health) codes describe how conditions like occlusion and stenosis of basilar artery 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 I65.1?
I65.1 maps to the ICD-11 code: BD55&XA2K99.
Automate ICD-10 Coding With AI
Send clinical text to the AutoICD API and get back structured ICD-10 codes with confidence scores. Integrates into any EHR or billing system in minutes.
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.