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Table 1 Criteria applied to identify chronic patients through administrative datasets

From: Reported experience of patients with single or multiple chronic diseases: empirical evidence from Italy

Conditions

Hospital data (ICD9cm)

Drug data (ATC)

Exemption

Diabetes

250*

A10*

250

Heart failure

428, 3981, 40,201, 40,211, 40,291, 40,401, 40,403, 40,411, 40,413, 40,491, 40,493

 

428

Hypertension

 

000, 401, 402, 403, 404, 405

ischemic heart disease

 

414

  1. *includes all subcodes associated to the main classification