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 0CU7X
Supplement Tongue with Autol Sub, Extern Approach
Supplement Tongue with Nonaut Sub, Perc Approach
Supplement Tongue with Synthetic Substitute, Extern Approach
Supplement Tongue with Synthetic Substitute, Perc Approach
Supplement Tongue with Autol Sub, Perc Approach
Supplement Tongue with Nonaut Sub, Extern Approach
Supplement Tongue with Autol Sub, Open Approach
Supplement Tongue with Synthetic Substitute, Open Approach
Supplement Tongue with Nonaut Sub, Open Approach