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 0C97X
Drainage of Tongue, Percutaneous Approach
Drainage of Tongue, Open Approach, Diagnostic
Drainage of Tongue with Drainage Device, Open Approach
Drainage of Tongue, External Approach
Drainage of Tongue, Percutaneous Approach, Diagnostic
Drainage of Tongue, Open Approach
Drainage of Tongue, External Approach, Diagnostic
Drainage of Tongue with Drainage Device, Perc Approach
Drainage of Tongue with Drainage Device, External Approach