20.92 - Revision Of Mastoidectomy

The ICD 9 Code for Revision of mastoidectomy is listed as 20.92.
Additional information concerning this code and description can be found below including ICD 10 crosswalks / GEMS and chapter information where available.

ICD 9 CM Volume 3 (PCS) Field	Value
Procedure Code:	20.92
Description:	Revision of mastoidectomy
Short Description:	Mastoidectomy revision

Chapter:	Operations on the ear
Subsection 1:	Other operations on middle and inner ear
ICD-10-PCS General Equivalence Mappings (GEMS):
ICD 10 PCS Code:	09QB0ZZ - Repair Right Mastoid Sinus, Open Approach (approximate)
ICD 10 PCS Code:	09QB3ZZ - Repair Right Mastoid Sinus, Percutaneous Approach (approximate)
ICD 10 PCS Code:	09QB4ZZ - Repair Right Mastoid Sinus, Percutaneous Endoscopic Approach (approximate)
ICD 10 PCS Code:	09QC0ZZ - Repair Left Mastoid Sinus, Open Approach (approximate)
ICD 10 PCS Code:	09QC3ZZ - Repair Left Mastoid Sinus, Percutaneous Approach (approximate)
ICD 10 PCS Code:	09QC4ZZ - Repair Left Mastoid Sinus, Percutaneous Endoscopic Approach (approximate)
ICD-9-CM Volume 3 (PCS) Siblings (same level / similar specificity) of 20.92:
20.91 - Tympanosympathectomy
20.93 - Repair of oval and round windows
20.94 - Injection of tympanum
20.95 - Implantation of electromagnetic hearing device
20.96 - Implantation or replacement of cochlear prosthetic device, not otherwise specified
20.97 - Implantation or replacement of cochlear prosthetic device, single channel
20.98 - Implantation or replacement of cochlear prosthetic device, multiple channel
20.99 - Other operations on middle and inner ear