ICD-9-CM Procedures (FY10)

OPERATIONS ON THE EAR (18-20)Excludes: division of otosclerotic process (19.0)stapediolysis (19.0)that with stapedectomy (19.11-19.19)20.3 Diagnostic procedures on middle and inner ear20.31 Electrocochleography20.32 Biopsy of middle and inner ear20.39 Other diagnostic procedures on middle and inner earExcludes: auditory and vestibular function tests (89.13, 95.41-95.49)microscopic examination of specimen from ear(90.31-90.39)20.4 MastoidectomyCode also any:skin graft (18.79)tympanoplasty (19.4- 19.55)Excludes: that with implantation of cochlear prosthetic device (20.96-20.98)20.41 Simple mastoidectomy20.42 Radical mastoidectomy20.49 Other mastoidectomyAtticoantrostomyMastoidectomy:NOSmodified radical20.5 Other excision of middle earExcludes: that with synchronous mastoidectomy (20.41-20.49)20.51 Excision of lesion of middle earExcludes: biopsy of middle ear (20.32)20.59 OtherApicectomy of petrous pyramidTympanectomy20.6 Fenestration of inner ear20.61 Fenestration of inner ear (initial)Fenestration of:labyrinth with graft (skin) (vein)semicircular canals with graft (skin) (vein)vestibule with graft (skin) (vein)Excludes: that with tympanoplasty, type V (19.55)20.62 Revision of fenestration of inner ear20.7 Incision, excision, and destruction of inner ear20.71 Endolymphatic shunt20.72 Injection into inner earDestruction by injection (alcohol):inner earsemicircular canalsvestibule New code ® Revised code 4 th digit required 57