Other pneumothorax

This code signifies a collapsed lung due to air accumulation in the pleural space, not otherwise specified as spontaneous, traumatic, or iatrogenic. It encompasses various less common or ill-defined types of pneumothorax.

Use this code when documentation indicates a pneumothorax that doesn't fit the criteria for spontaneous (primary or secondary), traumatic, or iatrogenic causes. This may include cases where the etiology is unclear or attributed to rare conditions not specifically coded elsewhere.

• Ensure documentation clearly rules out spontaneous, traumatic, or iatrogenic etiologies before assigning this code.
• Always review the medical record for any further specificity regarding the cause of the pneumothorax; a more specific code may be available.
• Consider sequencing this code as a secondary diagnosis if the primary reason for the encounter is treatment of an underlying condition contributing to the pneumothorax.