What is code 94727 used to evaluate?


Code 94727 was created in 2012 to replace the nitrogen washout curve including alveolar nitrogen or helium equilibration time. This service is used to evaluate:

  • Total lung capacity
  • Functional residual capacity
  • Residual volumes
  • Closing volumes and distribution of ventilation
94727 Gas dilution or washout for determination of lung volumes and, when performed, distribution of ventilation and closing volumes

This question was answered in our Coding Essentials for RT/Pulmonary Function. For more hot topics relating to respiratory services, please visit our store or call us at 1.800.252.1578, ext. 2.


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