01 Certain infectious or parasitic diseases

 02 Neoplasms

   Neoplasms of brain or central nervous system

   Neoplasms of haematopoietic or lymphoid tissues

   Malignant neoplasms, except of lymphoid, haematopoietic, central nervous system or related tissues

   In situ neoplasms, except of lymphoid, haematopoietic, central nervous system or related tissues

   Benign neoplasms, except of lymphoid, haematopoietic, central nervous system or related tissues

   Neoplasms of uncertain behaviour, except of lymphoid, haematopoietic, central nervous system or related tissues

     2F70  Neoplasms of uncertain behaviour of oral cavity or digestive organs

     2F71  Neoplasms of uncertain behaviour of middle ear, respiratory or intrathoracic organs

     2F72  Neoplasms of uncertain behaviour of skin

     2F73  Neoplasms of uncertain behaviour of retroperitoneum

     2F74  Neoplasms of uncertain behaviour of peritoneum

     2F75  Neoplasms of uncertain behaviour of breast

     2F76  Neoplasms of uncertain behaviour of female genital organs

     2F77  Neoplasms of uncertain behaviour of male genital organs

     2F78  Neoplasms of uncertain behaviour of urinary organs

     2F79  Neoplasms of uncertain behaviour of eye or ocular adnexa

     2F7A  Neoplasms of uncertain behaviour of endocrine glands

     2F7B  Neoplasms of uncertain behaviour of bone or articular cartilage

     2F7C  Neoplasms of uncertain behaviour of connective or other soft tissue

     2F7Y  Neoplasms of uncertain behaviour of other specified site

     2F7Z  Neoplasms of uncertain behaviour of unspecified site

   Neoplasms of unknown behaviour, except of lymphoid, haematopoietic, central nervous system or related tissues

 03 Diseases of the blood or blood-forming organs

 04 Diseases of the immune system

 05 Endocrine, nutritional or metabolic diseases

 06 Mental, behavioural or neurodevelopmental disorders

 07 Sleep-wake disorders

 08 Diseases of the nervous system

 09 Diseases of the visual system

 10 Diseases of the ear or mastoid process

 11 Diseases of the circulatory system

 12 Diseases of the respiratory system

 13 Diseases of the digestive system

 14 Diseases of the skin

 15 Diseases of the musculoskeletal system or connective tissue

 16 Diseases of the genitourinary system

 17 Conditions related to sexual health

 18 Pregnancy, childbirth or the puerperium

 19 Certain conditions originating in the perinatal period

 20 Developmental anomalies

 21 Symptoms, signs or clinical findings, not elsewhere classified

 22 Injury, poisoning or certain other consequences of external causes