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Chapters ENES DE

XExtension Codes
Anatomy and topography
Functional anatomy
Nervous system
XA1630Peripheral nervous system
XA06U6Peripheral nerve

XA8PE3 category

Nerve to the piriformis

Also indexed as

Nerve to the piriformisnerve to the piriformis musclepiriformis nerve

Nearby in Peripheral nerve

XA20S2Inferior cervical ganglion
XA0Z50Suboccipital nerve
XA4WK4Greater auricular nerve
XA6BB0Greater occipital nerve
XA3ND8Lesser occipital nerve
XA18D0Third occipital nerve
XA8T30Iliohypogastric nerve
XA5Q50Ilioinguinal nerve

PreviousXA1HC7 — Nerve to obturator internus NextXA0869 — Nervus intermedius

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
Haematopoietic system
Immune system
Endocrine system
Nervous system
Visual system
Auditory system
Circulatory system
Respiratory system
Digestive system
3 more
XA3JU6Central nervous system
XA1630Peripheral nervous system
XA7718Autonomic nervous system
Nerve
XA65L3Spinal nerve
XA6EC2Spinal nerve root
XA64F0Spinal nerve plexus
XA06U6Peripheral nerve
XA8EK9Cranial Nerve
XA6B81Intermediate cutaneous nerve
XA8AU6Jugular ganglion
XA1Z01Long root of the ciliary ganglion
XA9RD0Middle cervical ganglion
XA5QF4Musculocutaneous nerve
XA96Q6Nerve of the cervical region
XA1HC7Nerve to obturator internus
XA8PE3Nerve to the piriformis
XA0869Nervus intermedius
XA2KG8Nervus spinosus
XA5NY4Nodose ganglion
XA4548Obturator nerve
XA9519Paraganglion
XA1GM8Pelvic splanchnic nerve
XA6GZ8Perforating cutaneous nerve
94 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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