CPT® anesthesia codes

1.What is the correct CPT® code for anesthesia for closed chest procedures; (mediastinoscopy and diagnostic thoracoscopy not utilizing 1 lung ventilation)?

2.What is the correct CPT code for anesthesia for transurethral procedures (including urethrocystoscopy); not otherwise specified?

3.What is the correct CPT code for anesthesia for open or surgical arthroscopic/endoscopic procedures on distal radius, distal ulna, wrist, or hand joints; total wrist replacement?

4.What is the correct CPT code for anesthesia for cesarean delivery only?

5.What is the correct CPT code for anesthesia for procedures on the integumentary system on the extremities, anterior trunk and perineum; radical or modified radical procedures on breast with internal mammary node dissection?