20.91 - Tympanosympathectomy

The ICD 9 Code for Tympanosympathectomy is listed as 20.91.
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:	20.91
Description:	Tympanosympathectomy
Short Description:	Tympanosympathectomy

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:	01BK0ZZ - Excision of Head and Neck Sympathetic Nerve, Open Approach (approximate)
ICD 10 PCS Code:	01BK3ZZ - Excision of Head and Neck Sympathetic Nerve, Percutaneous Approach (approximate)
ICD 10 PCS Code:	01BK4ZZ - Excision of Head and Neck Sympathetic Nerve, Percutaneous Endoscopic Approach (approximate)
ICD-9-CM Volume 3 (PCS) Siblings (same level / similar specificity) of 20.91:
20.92 - Revision of mastoidectomy
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