ICD-10 Code J93 – Pneumothorax and air leak (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code J93 – Pneumothorax and air leak
What it is
J93 identifies pneumothorax, meaning air has entered the pleural space and can partially or fully collapse the lung. It also covers related air leak conditions documented by the provider.
Clinical signs
Common findings include sudden chest pain, shortness of breath, decreased breath sounds, and reduced chest expansion. Clinical features vary; refer to documentation.
When to use this code
Use J93 when the record clearly documents pneumothorax or an air leak affecting the pleural space. Apply the code for spontaneous, traumatic, or procedure-related cases only if the provider documents this diagnosis. If the type or cause is specified elsewhere, code the documented detail as instructed.
Do not use for
Do not use J93 for pleural effusion, pneumonia, or other lung collapse without air in the pleural space. Check documentation if the note only mentions chest pain or postoperative respiratory symptoms.
Coding tip
Capture the provider’s exact pneumothorax type and cause, because J93 may need a more specific subcode.