I65.21
BillableOcclusion and stenosis of right carotid artery
Occlusion and stenosis of right carotid 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(3)
Also Known As / Clinical Terms(50)
SNOMED CT
- Carotid artery obstruction69798007
- Carotid artery embolism80606009
- Carotid embolus80606009
- Carotid artery thrombosis86003009
- ICA - Internal carotid artery stenosis233964008
- Internal carotid artery stenosis233964008
- Carotid artery occlusion266254007
- Occlusion of carotid artery266254007
- Internal carotid artery thrombosis425420004
- Thrombosis internal carotid artery425420004
- Thrombosis of internal carotid artery425420004
- Right carotid artery thrombosis734382000
- Thrombosis of right carotid artery734382000
- Embolism of right carotid artery1153631008
- Embolus of right carotid artery1153631008
- Occlusion of right carotid artery285171000119104
- Right carotid artery occlusion285171000119104
- Occlusion of right carotid artery by embolus455831000124104
- Occlusive embolus of right carotid artery455831000124104
- Right carotid artery stenosis285201000119100
- Stenosis of right carotid artery285201000119100
- Right cavernous carotid stenosis12720001000004100
- Stenosis of cavernous portion of right internal carotid artery12720001000004100
- Thrombosis of right internal carotid artery15707841000119101
UMLS
Clinical Terms
- Carotid artery embolism
- Thrombosis internal carotid artery
- Right carotid artery stenosis
- Carotid artery thrombosis
- Right carotid artery thrombosis
- Occlusive embolus of right carotid artery
- Carotid artery occlusion
- Carotid artery obstruction
- Thrombosis of right internal carotid artery
- Embolism of right carotid artery
- Right cavernous carotid stenosis
- Right carotid artery occlusion
- Occlusion of right carotid artery by embolus
- Stenosis of cavernous portion of right internal carotid artery
- Stenosis of right carotid artery
- Thrombosis of right carotid artery
- Internal carotid artery thrombosis
- Embolus of right carotid artery
- ICA - Internal carotid artery stenosis
- Carotid embolus
- Occlusion of right carotid artery
- Internal carotid artery stenosis
- Thrombosis of internal carotid artery
- Occlusion of carotid artery
Frequently Asked Questions
What is the ICD-10 code for occlusion and stenosis of right carotid artery?
The ICD-10-CM code for occlusion and stenosis of right carotid artery is I65.21. The full clinical description is "Occlusion and stenosis of right carotid artery". I65.21 is a billable/specific code that can be used on insurance claims and medical billing.
What does ICD-10 code I65.21 mean?
ICD-10-CM code I65.21 represents “Occlusion and stenosis of right carotid 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 I65.21 a billable code?
Yes, I65.21 is a billable/specific ICD-10-CM code and can be used to indicate a diagnosis on a medical claim.
What chapter is I65.21 in?
I65.21 is in Chapter 9: Diseases of the Circulatory System (codes I00-I99).
What codes cannot be used with I65.21?
I65.21 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 I65.21?
Yes, when using I65.21, 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 I65.21 map to?
I65.21 maps to 13 SNOMED CT concepts: 80606009, 69798007, 266254007, 86003009, 1153631008, and 8 more. SNOMED CT is a clinical terminology used in electronic health records.
What are the UMLS CUIs for I65.21?
I65.21 is linked to 1 UMLS Concept Unique Identifier: C2882421. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.
How does I65.21 relate to ICF functioning codes?
ICF (International Classification of Functioning, Disability and Health) codes describe how conditions like occlusion and stenosis of right carotid 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 I65.21?
There is no direct ICD-11 mapping available for I65.21 in the WHO crosswalk tables. This may mean the concept is classified differently in ICD-11. Use the ICD-10 to ICD-11 converter to search for related codes.
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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.