The Body Part Lower Arm, Left 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 0X6F
Detachment at Left Lower Arm, Low, Open Approach
Detachment at Left Lower Arm, High, Open Approach
Detachment at Left Lower Arm, Mid, Open Approach