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Table 2 ICD10 Code assignment by clinical coders at King’s College Hospital

From: CogStack - experiences of deploying integrated information retrieval and extraction services in a large National Health Service Foundation Trust hospital

Group Unique patient count
I Certain infectious and parasitic diseases 171 988
II Neoplasms 259 975
III Diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism 72 939
IV Endocrine, nutritional and metabolic diseases 272 317
IX Diseases of the circulatory system 504 581
V Mental and behavioural disorders 706 990
VI Diseases of the nervous system 179 710
VII Diseases of the eye and adnexa 183 841
VIII Diseases of the ear and mastoid process 13 416
X Diseases of the respiratory system 242 282
XI Diseases of the digestive system 598 165
XII Diseases of the skin and subcutaneous tissue 131 227
XIII Diseases of the musculoskeletal system and connective tissue 343 803
XIV Diseases of the genitourinary system 212 198
XIX Injury, poisoning and certain other consequences of external causes 351 608
XV Pregnancy, childbirth and the puerperium 327 111
XVI Certain conditions originating in the perinatal period 78 541
XVII Congenital malformations, deformations and chromosomal abnormalities 104 242
XVIII Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified 513 384
XX External causes of morbidity and mortality 650 984
XXI Factors influencing health status and contact with health services 1 520 107
XXII Codes for special purposes 385 417