Continuous Positive Airway Pressure true Continuous Positive Airway Pressure CTRP Continuous positive airway pressure (CPAP) CPAP C124040 Continuous Positive Airway Pressure A form of non-invasive mechanical pressure support ventilation that uses a continuous positive airway pressure level to support spontaneous breathing activity. https://www.ncbi.nlm.nih.gov/pubmed/21849000 C0199451 Therapeutic or Preventive Procedure https://www.ncbi.nlm.nih.gov/pubmed/29991426 Continuous Positive Airway Pressure therapeutic procedure