MENTAL DISORDERS [290-319]
[290-299] Psychoses.
[290-294] Organic psychotic conditions.
[295-299] Other psychoses.
[300-316] Neurotic disorders, personality disorders, and other non-psychotic mental disorders.
[317-319] Mental retardation.

NERVOUS SYSTEM AND SENSE ORGANS [320-389]
[320-326] Inflammatory diseases of the central nervous system.
[330-337] Hereditary and degenerative diseases of the central nervous system.
[340-349] Other disorders of the central nervous system.
[350-359] Disorders of the peripheral nervous system.
[360-379] Disorders of the eye and adnexa.
[380-389] Diseases of the ear and mstoid process.

DISEASES OF THE CIRCULATORY SYSTEM [390-459]
[390-392] Acute rheumatic fever.
[393-398] Chronic rheumatic heart disease.
[401-405] Hypertensive disease.
[410-414] Ischemic heart disease.
[415-417] Diseases of pulmonary circulation.
[420-429] Other forms of heart disease.
[430-438] Cerebrovascular disease.
[440-448] Diseases of arteries, arterioles, and capillaries.
[451-459] Diseases of veins and lymphatics, and other diseases of circulatory system