Abnormal findings on diagnostic imaging of lung (R91)

ICD-10 code R91 covers abnormal findings identified through diagnostic imaging of the lungs. This section is specifically designed to classify lung abnormalities detected on X-rays, CT scans, or other imaging methods without assigning a definitive diagnosis.

The code R91.1 refers to a solitary pulmonary nodule, which is a single abnormal spot or lesion in the lung seen on imaging. Synonyms like "coin lesion of lung" and "pulmonary nodule following infection by Coccidioides or Pneumocystis" help clarify this code’s use when identifying isolated nodules possibly caused by infections or other conditions. Meanwhile, R91.8 captures various other nonspecific abnormal lung findings, such as "ground glass opacity," "air bronchogram," or "radiologic infiltrate," terms often used to describe less clearly defined changes or increased densities on lung images. These codes are critical when healthcare providers observe abnormal lung imaging results but have not yet confirmed a specific lung disease, ensuring accurate coding for further investigation or follow-up care. Understanding ICD-10 codes for abnormal lung imaging helps facilitate appropriate documentation and communication within medical records and billing systems.