The Type Ultrasonography is identified by number "4" and occupies the 3rd position in the ICD10-PCS procedure code structure.
Below a selection of ICD 10 PCS codes related to BL4
Ultrasonography of Lower Extremity Connective Tissue
Ultrasonography of Upper Extremity Tendons
Ultrasonography of Upper Extremity Connective Tissue
Ultrasonography of Lower Extremity Tendons