World Health Organization · 2026-01 · English
ICD-11 MMS
Official WHO ICD-11 MMS tabulation. This international classification is separate from US ICD-10-CM. For complete instructions and postcoordination, consult the WHO browser.
Chapters (28)
01Certain infectious or parasitic diseases02Neoplasms03Diseases of the blood or blood-forming organs04Diseases of the immune system05Endocrine, nutritional or metabolic diseases06Mental, behavioural or neurodevelopmental disorders07Sleep-wake disorders08Diseases of the nervous system09Diseases of the visual system10Diseases of the ear or mastoid process11Diseases of the circulatory system12Diseases of the respiratory system13Diseases of the digestive system14Diseases of the skin15Diseases of the musculoskeletal system or connective tissue16Diseases of the genitourinary system17Conditions related to sexual health18Pregnancy, childbirth or the puerperium19Certain conditions originating in the perinatal period20Developmental anomalies21Symptoms, signs or clinical findings, not elsewhere classified22Injury, poisoning or certain other consequences of external causes23External causes of morbidity or mortality24Factors influencing health status or contact with health services25Codes for special purposes26Supplementary Chapter Traditional Medicine ConditionsVSupplementary section for functioning assessmentXExtension Codes© World Health Organization · CC BY-ND 3.0 IGO