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Chapters ENES DE

XExtension Codes
Anatomy and topography
Functional anatomy
Circulatory system
XA4PM9Cardiovascular system
XA5999Arteries
XA4TS7Artery of head, face, and neck
XA13S2Cerebral artery

XA2K99 category

Basilar artery

1 subordinate code

XA3185Pontine branches of the basilar artery

Also indexed as

Basilar artery

Nearby in Cerebral artery

XA1VB0Anterior cerebral artery
XA2JH8Middle cerebral artery
XA4WT4Anterolateral central artery
XA7C50Posterior cerebral artery

PreviousXA1VB0 — Anterior cerebral artery NextXA2JH8 — Middle cerebral artery

Browse ICD-11

01Certain infectious or parasitic diseases
02Neoplasms
03Diseases of the blood or blood-forming organs
04Diseases of the immune system
05Endocrine, nutritional or metabolic diseases
06Mental, behavioural or neurodevelopmental disorders
07Sleep-wake disorders
08Diseases of the nervous system
09Diseases of the visual system
10Diseases of the ear or mastoid process
11Diseases of the circulatory system
12Diseases of the respiratory system
13Diseases of the digestive system
14Diseases of the skin
15Diseases of the musculoskeletal system or connective tissue
16Diseases of the genitourinary system
17Conditions related to sexual health
18Pregnancy, childbirth or the puerperium
19Certain conditions originating in the perinatal period
20Developmental anomalies
21Symptoms, signs or clinical findings, not elsewhere classified
22Injury, poisoning or certain other consequences of external causes
23External causes of morbidity or mortality
24Factors influencing health status or contact with health services
25Codes for special purposes
26Supplementary Chapter Traditional Medicine Conditions
VSupplementary section for functioning assessment
XExtension Codes
Severity Scale Value
Temporality
Aetiology
Topology Scale Value
Anatomy and topography
Histopathology
Dimensions of injury
Dimensions of external causes
Consciousness
5 more
Functional anatomy
Surface topography
Partonomic view
Endocrine system
Nervous system
Visual system
Auditory system
Circulatory system
Respiratory system
Digestive system
Integumentary system
Musculoskeletal system
3 more
XA4PM9Cardiovascular system
Lymphatic system
XA5999Arteries
XA5J49Veins
XA21T7Blood Vessels
XA6H07Heart
XA4TS7Artery of head, face, and neck
XA9UT1Artery of thorax
XA9JK8Artery of abdomen
XA4GP1Artery of pelvis
XA81N7Artery of upper extremity
XA8DW5Artery of lower extremity
XA6Y34Aorta
XA1GU9Anterior superior alveolar artery
XA2505Artery of pterygoid canal
XA9AD7Carotid artery
XA5SN3Cerebellar artery
XA13S2Cerebral artery
XA2UK9Costocervical trunk
XA7SK1Deep auricular artery
XA1NY7Deep cervical artery
XA18D8Dorsal nasal artery
62 more
XA1VB0Anterior cerebral artery
XA2K99Basilar artery
XA2JH8Middle cerebral artery
XA4WT4Anterolateral central artery
XA7C50Posterior cerebral artery
XA3185Pontine branches of the basilar artery

International Classification of Diseases, Eleventh Revision (ICD-11), World Health Organization (WHO) 2019/2021, https://icd.who.int/browse11. Licensed under Creative Commons Attribution-NoDerivatives 3.0 IGO (CC BY-ND 3.0 IGO).

Release 2026-01. View this entity in the official WHO ICD-11 browser.

This page reproduces WHO classification content for reference. It is not medical advice and must not be used to diagnose or treat. For coding decisions, consult the official release and your national coding guidelines.

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