Short answer · Medically reviewed summary · Last updated: 2026-04-08

Pneumothorax is clinically defined as the presence of air or gas in the pleural cavity, which causes the lung to collapse. While commonly referred to as a "collapsed lung," this condition may be categorized by its underlying cause, such as spontaneous pneumothorax, traumatic pneumothorax, or iatrogenic pneumothorax, and is classified under code J93 in the ICD-10 system. What are the common names and synonyms for pneumothorax? While pneumothorax is the standard medical term used by healthcare providers globally, patients may encounter several synonyms depending on the context of their diagnosis.

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Pneumothorax synonyms

Other names for Pneumothorax: synonyms, acronyms and related terms used by doctors and patients.

Pneumothorax is also known as...

Pneumothorax is clinically defined as the presence of air or gas in the pleural cavity, which causes the lung to collapse. While commonly referred to as a "collapsed lung," this condition may be categorized by its underlying cause, such as spontaneous pneumothorax, traumatic pneumothorax, or iatrogenic pneumothorax, and is classified under code J93 in the ICD-10 system.



What are the common names and synonyms for pneumothorax?


While pneumothorax is the standard medical term used by healthcare providers globally, patients may encounter several synonyms depending on the context of their diagnosis. The most frequent colloquial term is "collapsed lung." In clinical documentation, you may see it abbreviated as "PTX" or "PNX." Historically, older medical literature sometimes referred to the condition as "pleural emphysema" or "pneumopleuritis," though these terms are now considered obsolete and rarely used in modern clinical practice.



How is pneumothorax classified in medical systems?


Medical professionals categorize pneumothorax based on the mechanism of injury or the presence of underlying lung disease. The primary classification systems, such as the International Classification of Diseases (ICD-10/11), organize the condition into specific types to guide treatment protocols. These classifications include:



  • Primary Spontaneous Pneumothorax (PSP): Occurs in individuals without underlying lung disease, often in tall, thin, young adults.

  • Secondary Spontaneous Pneumothorax (SSP): Occurs as a complication of pre-existing lung conditions, such as COPD, cystic fibrosis, or severe asthma.

  • Traumatic Pneumothorax: Resulting from a physical injury to the chest, such as a rib fracture or penetrating wound.

  • Iatrogenic Pneumothorax: A complication arising from medical procedures, such as thoracentesis, lung biopsy, or central venous line placement.

  • Tension Pneumothorax: A medical emergency where air pressure inside the pleural space becomes high enough to compress the heart and shift the mediastinum.



Why does this condition have multiple names?


The variety of names associated with pneumothorax exists because the condition is a symptom or a result of many different underlying physiological states. Medical nomenclature has evolved to prioritize precision; for instance, distinguishing between a "spontaneous" event and a "traumatic" one is essential for determining the urgency of intervention. At DiseaseMaps.org, we have observed that 70 members have joined our community specifically to discuss their experiences with pneumothorax, highlighting that while the medical name is universal, the patient experience varies significantly based on whether the case is recurring or triggered by an external event.



Which terminology is preferred by clinicians today?


In modern healthcare settings, pneumothorax remains the gold-standard term for formal diagnosis and documentation. It is the term recognized by the NIH Genetic and Rare Diseases Information Center (GARD) and Orphanet. Clinicians prefer this term because it is descriptive and anatomically accurate, derived from the Greek words "pneuma" (air) and "thorax" (chest). Using the formal term pneumothorax ensures clear communication between specialists, such as pulmonologists and thoracic surgeons, and helps patients navigate their own medical records accurately.



Next steps



  • Consult a pulmonologist or thoracic surgeon if you suspect symptoms like sudden chest pain or shortness of breath.

  • Request a copy of your radiology reports, which will specifically identify the type of pneumothorax present.

  • Join our community at DiseaseMaps.org to connect with others who have navigated the challenges of living with or recovering from a pneumothorax.

  • Monitor for warning signs, especially if you have a history of recurrent pneumothorax or underlying lung disease.



Medical disclaimer: This content is for informational purposes only and does not constitute professional medical advice, diagnosis, or treatment; always seek the advice of your physician with any questions regarding a medical condition.



References



  • NIH Genetic and Rare Diseases Information Center (GARD): Pneumothorax information page.

  • Orphanet: Database of rare diseases and orphan drugs (ORPHA code classification).

  • World Health Organization (WHO): ICD-10 Version: 2019 (Code J93).

  • PubMed: Clinical reviews on the management of spontaneous and traumatic pneumothorax.

Medical disclaimer: This information does not substitute professional medical advice. Always consult your doctor before making health decisions.
Source: DiseaseMaps.org
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