The Body System or Region Lower GI is identified by letter "H" and occupies the 4th position in the ICD10-PCS procedure code structure.
Below a selection of ICD 10 PCS codes related to 3E1H
Irrigation of Lower GI using Irrigat, Via Opening
Irrigation of Lower GI using Irrigat, Via Opening, Diagn
Irrigation of Lower GI using Irrigat, Perc Approach, Diagn
Irrigation of Lower GI using Irrigat, Perc Approach
Irrigation of Lower GI using Irrigat, Endo, Diagn
Irrigation of Lower GI using Irrigating Substance, Endo