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Table 1 Selection of 29 chronic diseases with ICPC-1 codes

From: Multimorbidity and comorbidity in the Dutch population – data from general practices

Chronic disease

ICPC-1 code

Tuberculosis

A70

HIV/AIDS

B90

Cancer

A79, B72, B73, D74, D75, D77, L71, N74, R84, R85, S77, T71, U75, U76, U77, W72, X75, X76, X77, Y77, Y78

Gastric or duodenal ulcer

D85, D86

Chronic enteritis/colitis ulcerosa

D94

Visual disorder

F83, F84, F92, F93, F94

Hearing disorder

H84, H85

Congenital cardiovascular anomaly

K73

Coronary heart disease

K74, K75, K76

Heart failure

K77

Stroke (including TIA)

K89, K90

Chronic back or neck disorder

L83, L84, L85, L86

Rheumatoid arthritis

L88

Osteoarthritis

L89, L90, L91

Osteoporosis

L95

Congenital neurological anomaly

N85

Multiple sclerosis

N86

Parkinson’s disease

N87

Epilepsy

N88

Chronic alcohol abuse

P15

Dementia

P70

Schizophrenia

P72

Anxiety disorder, neurosis, PTSS

P74, P79

Depressive disorder

P76

Mental retardation

P85

Chronic obstructive pulmonary disease

R91, R95

Asthma

R96

Anorexia

T06

Diabetes mellitus

T90

  1. The selection of chronic diseases is based on ‘Defining chronic conditions for primary care using ICPC-2: supplementary data'.[17] ICPC-2 codes are encoded into ICPC-1 codes.