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 BD4
Ultrasonography of Gastrointestinal Tract
Ultrasonography of Appendix
Ultrasonography of Stomach
Ultrasonography of Duodenum
Ultrasonography of Rectum
Ultrasonography of Esophagus