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Chapters ENES DE

22Injury, poisoning or certain other consequences of external causes
Injuries to the thorax
NB31Injury of heart
NB31.4Injury of heart valve

NB31.40 category

Injury to mitral valve

Also indexed as

Injury to mitral valvetraumatic injury to mitral valve

Nearby in Injury of heart valve

4B4YOther specified diseases of the immune system
4B4ZDiseases of the immune system, unspecified

Next4B4Y — Other specified diseases of the immune system

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
NA00-NA0ZInjuries to the head
NA20-NA6ZInjuries to the neck
NA80-NB3ZInjuries to the thorax
NB50-NB9ZInjuries to the abdomen, lower back, lumbar spine or pelvis
NC10-NC1ZInjuries to the shoulder or upper arm
NC30-NC3ZInjuries to the elbow or forearm
NC50-NC5ZInjuries to the wrist or hand
NC70-NC7ZInjuries to the hip or thigh
NC90-NC9ZInjuries to the knee or lower leg
11 more
NA82Fracture of rib, sternum or thoracic spine
NA83Dislocation or strain or sprain of joints or ligaments of thorax
NA90-NB2ZInjury of nerves or spinal cord at thorax level
NB30Injury of blood vessels of thorax
NB31Injury of heart
NB32Injury of other or unspecified intrathoracic organs
NB33Crushing injury of thorax or traumatic amputation of part of thorax
NB34Injury of muscle, fascia or tendon at thorax level
NB35Multiple injuries of thorax
4 more
NB31.0Injury of heart with haemopericardium
NB31.1Injury of heart without haemopericardium
NB31.2Injury of heart, unspecified without open wound into thoracic cavity
NB31.3Injury of heart, unspecified with open wound into thoracic cavity
NB31.4Injury of heart valve
4B4YOther specified diseases of the immune system
4B4ZDiseases of the immune system, unspecified
NB31.40Injury to mitral valve
4B4YOther specified diseases of the immune system
4B4ZDiseases of the immune system, unspecified

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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