TableĀ 2

Concordance of patients identified with multimorbidity (3+ definition) between ICPC-2, ICD-10 and CIRS

Proportion of patients identified as having multimorbidity using each classification system (horizontal) that were also identified using other classification systems (vertical) (%, 95% CIs)
ICPC-2ICD-10CIRS
ICPC-2100.099.1 (98.7 to 99.5)92.1 (90.9 to 93.3)
ICD-1099.3 (98.9 to 99.6)100.091.9 (90.7 to 93.1)
CIRS93.7 (92.6 to 94.7)93.3 (92.2 to 94.4)100.0
  • CIRS, Cumulative Illness Rating Scale; ICD-10, International Classification of Disease10th chapter; ICPC-2, International Classification of Primary Care second chapter.