A Patient Undergoes Carpal Tunnel Decompression on the Right Hand

Multiple Choice

A patient undergoes carpal tunnel decompression on the right hand on 6/3/12 with Dr. Smith. On 6/7/12, the patient calls Dr. Smith's office complaining of severe cramping and tingling in his right hand. Dr. Smith's partner, Dr. Curry, is available that afternoon and performs a repeat carpal tunnel decompression on the right hand. What modifier will need to be appended to the second carpal tunnel surgery code?

A) 78
B) 77
C) 80
D) 81