Solitary pulmonary nodule

This code signifies the presence of a single, well-defined, rounded opacity in the lung, typically less than 3 cm in diameter, identified on imaging studies. It represents an abnormal finding that requires further investigation to determine its etiology.

Use this code when imaging reports (e.g., chest X-ray, CT scan) document a solitary pulmonary nodule without further specification of its nature (e.g., benign, malignant). It is appropriate when the definitive diagnosis of the nodule's cause is still pending or unknown.

• Do not use this code if a definitive diagnosis for the nodule (e.g., lung cancer, granuloma) has been established; instead, code the specific condition.
• This code is often used as a primary diagnosis when the nodule is the reason for the encounter, followed by codes for any associated symptoms or risk factors.
• Ensure documentation clearly states "solitary" and "nodule" to support this code, differentiating it from multiple nodules or other lung opacities.