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The International Statistical Classification of Diseases and Related Health Problems

National Centre for Classification in Health, Australia; AM - Australian Modification
Description ICD-10 & ICD-10-AM
Blood and immune diseases D50-D89
Cardiovascular diseases I00-I99, excludes I84
Dialysis Z49.1, Z49.2
Digestive system diseases K00-K93, includes I84 up to 2012/13 
Endocrine diseases E00-E89
Genitourinary diseases N00-N99
Infectious diseases A00-B99
Injury and poisoning S00-T98
Maternal, neonatal and congenital causes O00-Q99
Mental disorders F00-F99
Musculoskeletal diseases M00-M99
Neoplasms - malignant C00-C99
Neoplasms - other than malignant D00-D48
Nervous and sense disorders G00-H95
Other factors influencing health Z00-Z48, Z49.0, Z50-Z99
Respiratory diseases J00-J99
Skin diseases L00-L99
Symptoms and abnormal findings R00-R99, U00-U49

Haemorrhoids were classified as diseases of the circulatory system under ICD-10-AM Seventh edition (I84). In ICD-10-AM Eighth edition haemorrhoids are classified with diseases of the digestive system (K64). Consequently, haemorrhoids are not included in the total count of diseases of circulatory system.