Other pulmonary collapse

This code signifies a partial or complete collapse of a lung or a lobe of a lung due to causes other than those specifically classified elsewhere. It indicates a reduction in lung volume, often leading to impaired gas exchange and respiratory distress. This condition can arise from various factors obstructing the airway or compressing the lung.

Use this code when documentation specifies pulmonary collapse not otherwise specified, or when the cause is known but not covered by more specific codes (e.g., collapse due to foreign body, pneumothorax, or postoperative collapse). Supporting documentation should clearly state "pulmonary collapse" and rule out more specific etiologies.

• Always seek to identify the underlying cause of the pulmonary collapse; if a more specific code exists for the etiology, use that instead.
• Do not use this code for atelectasis explicitly linked to a newborn condition (P28.0).
• Consider sequencing this code after the primary diagnosis if the pulmonary collapse is a complication of another condition.