1. Certain infectious and parasitic diseases (A00-B99)

 2. Neoplasms (C00-D48)

 3. Diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism (D50-D89)

 4. Endocrine, nutritional and metabolic diseases (E00-E90)

 5. Mental and behavioural disorders (F00-F99)

 6. Diseases of the nervous system (G00-G99)

 7. Diseases of the eye and adnexa (H00-H59)

 8. Diseases of the ear and mastoid process (H60-H95)

 9. Diseases of the circulatory system (I00-I99)

 10. Diseases of the respiratory system (J00-J99)

 11. Diseases of the digestive system (K00-K93)

 12. Diseases of the skin and subcutaneous tissue (L00-L99)

 13. Diseases of the musculoskeletal system and connective tissue (M00-M99)

   M00-M03  Infectious arthropathies

   M05-M14  Inflammatory polyarthropathies

   M15-M19  Arthrosis

   M20-M25  Other joint disorders

   M30-M36  Systemic connective tissue disorders

     M30  Polyarteritis nodosa and related conditions

     M31  Other necrotizing vasculopathies

     M32  Systemic lupus erythematosus

     M33  Dermatopolymyositis

     M34  Systemic sclerosis

     M35  Other systemic involvement of connective tissue

   M40-M43  Deforming dorsopathies

   M45-M49  Spondylopathies

   M50-M54  Other dorsopathies

   M60-M63  Disorders of muscles

   M65-M68  Disorders of synovium and tendon

   M70-M79  Other soft tissue disorders

   M80-M85  Disorders of bone density and structure

   M86-M90  Other osteopathies

   M91-M94  Chondropathies

   M95-M99  Other disorders of the musculoskeletal system and connective tissue

 14. Diseases of the genitourinary system (N00-N99)

 15. Pregnancy, childbirth and the puerperium (O00-O99)

 16. Certain conditions originating in the perinatal period (P00-P96)

 17. Congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)

 18. Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99)

 19. Injury, poisoning and certain other consequences of external causes (S00-T98)

 20. External causes of morbidity and mortality (V01-Y98)

 21. Factors influencing health status and contact with health services (Z00-Z99)

 22. Codes for special purposes (U00-U85)