The Body System or Region Respiratory Tract is identified by letter "F" and occupies the 4th position in the ICD10-PCS procedure code structure.
Below a selection of ICD 10 PCS codes related to 3E1F
Irrigation of Respiratory Tract using Irrigat, Perc Approach
Irrigation of Respiratory Tract using Irrigat, Endo
Irrigation of Resp Tract using Irrigat, Via Opening, Diagn
Irrigation of Respiratory Tract using Irrigat, Endo, Diagn
Irrigation of Resp Tract using Irrigat, Perc Approach, Diagn
Irrigation of Respiratory Tract using Irrigat, Via Opening