ICD-11 Code Directory
Browse the WHO's ICD-11 (International Classification of Diseases, 11th Revision) code set organized by 28 chapters. Each code includes descriptions, clinical synonyms, SNOMED CT terms, UMLS cross-references, and mappings to ICD-10-CM equivalents.
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Chapter 1: Certain Infectious or Parasitic Diseases
23 code blocks
Chapter 2: Neoplasms
23 code blocks
Chapter 3: Diseases of the Blood or Blood-Forming Organs
10 code blocks
Chapter 4: Diseases of the Immune System
5 code blocks
Chapter 5: Endocrine, Nutritional or Metabolic Diseases
12 code blocks
Chapter 6: Mental, Behavioural or Neurodevelopmental Disorders
18 code blocks
Chapter 7: Sleep-Wake Disorders
6 code blocks
Chapter 8: Diseases of the Nervous System
15 code blocks
Chapter 9: Diseases of the Visual System
13 code blocks
Chapter 10: Diseases of the Ear or Mastoid Process
8 code blocks
Chapter 11: Diseases of the Circulatory System
16 code blocks
Chapter 12: Diseases of the Respiratory System
7 code blocks
Chapter 13: Diseases of the Digestive System
18 code blocks
Chapter 14: Diseases of the Skin
22 code blocks
Chapter 15: Diseases of the Musculoskeletal System or Connective Tissue
9 code blocks
Chapter 16: Diseases of the Genitourinary System
12 code blocks
Chapter 17: Conditions Related to Sexual Health
4 code blocks
Chapter 18: Pregnancy, Childbirth or the Puerperium
6 code blocks
Chapter 19: Certain Conditions Originating in the Perinatal Period
12 code blocks
Chapter 20: Developmental Anomalies
12 code blocks
Chapter 21: Symptoms, Signs or Clinical Findings, Not Elsewhere Classified
16 code blocks
Chapter 22: Injury, Poisoning or Certain Other Consequences of External Causes
24 code blocks
Chapter 23: External Causes of Morbidity or Mortality
16 code blocks
Chapter 24: Factors Influencing Health Status or Contact With Health Services
11 code blocks
Chapter 25: Codes for Special Purposes
1 code block
Chapter 26: Supplementary Chapter: Traditional Medicine Conditions
9 code blocks
Chapter 27: Supplementary Chapter: Functioning Assessment
3 code blocks
Chapter 28: Extension Codes
10 code blocks
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