The Approach External is identified by letter "X" and occupies the 5th position in the ICD10-PCS procedure code structure.
Below a selection of ICD 10 PCS codes related to 0990X
Drainage of Right External Ear, External Approach
Drainage of Right External Ear, Perc Endo Approach, Diagn
Drainage of Right External Ear, Perc Endo Approach
Drainage of R Ext Ear with Drain Dev, Perc Endo Approach
Drainage of Right External Ear, Percutaneous Approach, Diagn
Drainage of Right External Ear, Open Approach
Drainage of R Ext Ear with Drain Dev, Extern Approach
Drainage of Right External Ear with Drain Dev, Perc Approach
Drainage of Right External Ear, External Approach, Diagn
Drainage of Right External Ear, Open Approach, Diagnostic
Drainage of Right External Ear with Drain Dev, Open Approach
Drainage of Right External Ear, Percutaneous Approach