01 Certain infectious or parasitic diseases

 02 Neoplasms

   Neoplasms of brain or central nervous system

   Neoplasms of haematopoietic or lymphoid tissues

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

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

     2E60  Carcinoma in situ of oral cavity, oesophagus or stomach

     2E61  Carcinoma in situ of other or unspecified digestive organs

     2E62  Carcinoma in situ of middle ear or respiratory system

     2E63  Melanoma in situ neoplasms

     2E64  Carcinoma in situ of skin

     2E65  Carcinoma in situ of breast

     2E66  Carcinoma in situ of cervix uteri

     2E67  Carcinoma in situ of other or unspecified genital organs

     2E68  Carcinoma in situ of bladder

     2E69  Carcinoma in situ of other or unspecified urinary organs

     2E6A  Carcinoma in situ of the eye or ocular adnexa

     2E6B  Carcinoma in situ of thyroid and other endocrine glands

     2E6Y  Carcinoma in situ of other specified site

     2E6Z  Carcinoma in situ of unspecified site

   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

   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

 25 Codes for special purposes