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Table 1 Diagnostic codes for selected outcomes and comorbidities in this study

From: Long-term exposure to ambient ultrafine particles and respiratory disease incidence in in Toronto, Canada: a cohort study

  ICD-9/ICD-O-3 codes
Selected outcomes
 Chronic obstructive pulmonary disease (COPD) 491,492, 496
 Asthma 493
 Lung cancer C34.0 - C34.9 a
Comorbid health conditions
 Diabetes 250
 Hypertension 401–405
 Congestive Heart Failure (CHF) 428
 Acute myocardial infarction (AMI) 410
 All cancer 140–208
  1. aMalignant lung tumors (behaviour code 3)