Recent Trends in the Identification of Incidental Pulmonary Nodules.

Rationale: Pulmonary nodules are common incidental findings, but information about their incidence in the era of computed tomography (CT) is lacking.

Objectives: To examine recent trends in pulmonary nodule identification.

Methods: We used electronic health records and natural language processing to identify members of an integrated health system who had nodules measuring 4 to 30 mm.