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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)