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Chapters ENES DE

XExtension Codes
Anatomy and topography
Functional anatomy
Musculoskeletal system
Joints and ligaments
XA7948Joints and ligaments of the head and neck
XA1LE7Ligaments of the head and neck

XA80K5 category

Posterior atlantooccipital ligament

Also indexed as

Posterior atlantooccipital ligament

Nearby in Ligaments of the head and neck

XA68Z9Anterior atlantoaxial ligament
XA4XK9Anterior atlantooccipital ligament
XA9F16Anterior longitudinal ligament
XA3K95Apical odontoid ligament
XA3XV5Articular capsules
XA3ZW3Interarticular ligament
XA9M15Interspinal ligament
XA9NZ1Intertransverse ligament

PreviousXA1CC5 — Posterior atlantoaxial ligament NextXA8E20 — Posterior longitudinal ligament

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
Nervous system
Visual system
Auditory system
Circulatory system
Respiratory system
Digestive system
Integumentary system
Musculoskeletal system
Genitourinary system
3 more
Bones
Joints and ligaments
Cartilage
Muscles
Tendons
XA16K5Bursa
XA7948Joints and ligaments of the head and neck
XA2EL4Joints and ligaments of the thorax
XA6KC7Joints and ligaments of the pelvis and perineum
XA4XC0Joints and ligaments of the upper extremity
XA5ST4Joints and ligaments of the lower extremity
XA2P74Ligaments and joints of multiple sites
Number of joints
Number of Ligaments
XA6UT2Joints of the head
XA1LE7Ligaments of the head and neck
XA9NZ1Intertransverse ligament
XA5180Intervertebral fibrocartilage ligament
XA97L7Lateral atlantooccipital ligament
XA72L3Ligamenta flava
XA6RG7Ligamentum nuchae
XA3J99Occipitoaxial ligament
XA1CC5Posterior atlantoaxial ligament
XA80K5Posterior atlantooccipital ligament
XA8E20Posterior longitudinal ligament
XA4FR7Sphenomandibular ligament
XA4WM3Stylomandibular ligament
XA7WU3Supraspinal ligament
XA4WJ7Temporomandibular ligament
XA8389Transverse ligament of the atlas
XA33F9Thyrohyoid ligament
15 more

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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