The Treatment Site Stomach is identified by number "1" and occupies the 4th position in the ICD10-PCS procedure code structure.
Below a selection of ICD 10 PCS codes related to DDY1
Plaque Radiation of Stomach
Intraoperative Radiation Therapy (IORT) of Stomach
Laser Interstitial Thermal Therapy of Stomach
Contact Radiation of Stomach
Hyperthermia of Stomach