ICD-10 consists of 22 chapters, each of which covers a specific aspect of diseases, disorders, or conditions.
A00-B99
Certain infectious and parasitic diseases
D50-D89
Diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism
E00-E90
Endocrine, nutritional and metabolic diseases
F00-F99
Mental and behavioural disorders
G00-G99
Diseases of the nervous system
H00-H59
Diseases of the eye and adnexa
H60-H95
Codes for special purposes
I00-I99
Diseases of the circulatory system
J00-J99
Diseases of the respiratory system
K00-K93
Diseases of the digestive system
L00-L99
Diseases of the skin and subcutaneous tissue
M00-M99
Diseases of the musculoskeletal system and connective tissue
N00-N99
Diseases of the genitourinary system
O00-O99
Pregnancy, childbirth and the puerperium
P00-P96
Certain conditions originating in the perinatal period
Q00-Q99
Congenital malformations, deformations and chromosomal abnormalities
R00-R99
Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified
S00-T98
Injury, poisoning and certain other consequences of external causes
V01-Y98
External causes of morbidity and mortality
Z00-Z99
Factors influencing health status and contact with health services
U00-U99
Codes for special purposes