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Chapters ENES DE

XExtension Codes
Anatomy and topography
Functional anatomy
Musculoskeletal system
Muscles
XA47J0Muscles of the lower extremity

XA7XS8 category

Piriformis muscle

Also indexed as

Piriformis muscle

Nearby in Muscles of the lower extremity

XA0W07Abductor digiti minimi muscle (foot)
XA7119Abductor hallucis muscle
XA8GU7Adductor brevis muscle
XA0FW7Adductor hallucis muscle
XA01U3Adductor longus muscle
XA8HR3Adductor magnus muscle
XA0DE1Articularis genu muscle
XA3CB9Biceps femoris muscle

PreviousXA9D52 — Peroneus tertius muscle NextXA7W96 — Plantaris muscle

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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
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19Certain conditions originating in the perinatal period
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26Supplementary Chapter Traditional Medicine Conditions
VSupplementary section for functioning assessment
XExtension Codes
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Anatomy and topography
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Functional anatomy
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XA16K5Bursa
XA2JQ8Muscles of the head and neck
XA19W0Muscle of the thorax
XA8PG5Muscle of the abdomen
XA8Z76Muscle of the back
XA2J71Muscles of the pelvis and perineum
XA4Z20Muscles of the upper extremity
XA47J0Muscles of the lower extremity
XA7PN0Lumbricals of foot muscle
XA7Y24Obturator externus muscle
XA11E8Obturator internus muscle
XA9E00Pectineus muscle
XA26M7Peroneus brevis muscle
XA3P60Peroneus longus muscle
XA9D52Peroneus tertius muscle
XA7XS8Piriformis muscle
XA7W96Plantaris muscle
XA8CL8Popliteus muscle
XA41G3Quadratus plantae muscle
XA1BT5Quadriceps femoris muscle
XA5447Rectus femoris muscle
XA5CE3Sartorius muscle
XA5AM5Semimembranosus muscle
35 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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