Often, a physician will decide to perform a subchondroplasty during arthroscopic joint surgery to treat subchondral bone defects (microfractures).

Codes 46221, 46945 and 46946 are for coding internal hemorrhoidectomy procedures. CPT 46221 is for rubber band ligation and CPT 46945/46 are using other than rubber band ligation. Codes 46945/46 have ...