Table 2

Main diagnosis codes contributing to the NCM difference

ICD10 codesICD10 block description% of NCM difference
R10-R19Symptoms and signs involving the digestive system and abdomen10.44%
N30-N39Other diseases of urinary system4.63%
I20-I25Ischaemic heart diseases4.57%
C00-C97Malignant neoplasms4.33%
K55-K63Other diseases of intestines4.28%
Z00-Z13Persons encountering health services for examination and investigation4.28%
J40-J47Chronic lower respiratory diseases4.08%
R50-R69General symptoms and signs3.97%
R00-R09Symptoms and signs involving the circulatory and respiratory systems3.69%
I30-I52Other forms of heart disease3.49%
K50-K52Non-infective enteritis and colitis3.48%
M60-M79Soft tissue disorders3.26%
K20-K31Diseases of oesophagus, stomach and duodenum3.18%
N80-N98Non-inflammatory disorders of female genital tract3.11%
G40-G47Episodic and paroxysmal disorders2.74%
K80-K87Disorders of gall bladder, biliary tract and pancreas2.56%
D55-D59Haemolytic anaemias1.80%
E70-E90Metabolic disorders1.69%
N40-N51Diseases of male genital organs1.65%
  • ICD 10, International Classification of Diseases 10th revision; NCM, non-case mix.