Sialoadenectomy is the main method for salivary gland inflammation,saliva cysts and tumors.In ICD-9-CM-3,Sialoadenectomy is classified into excision of lesion of salivary gland,partial sialoadenectomy 26.31,and complete sialoadenectomy 26.32,and the commonly used excision of lesion of salivary gland in clinical practice includes parotidectomy and subtotal salivary gland lesion resection,and partial sialoadenectomy includes partial parotidectomy(superficial,deep,parotid),partial submandibular gland resection,partial salivary gland resection,and complete sialoadenectomy includes total parotidectomy,total submandibular gland resection and total sublingual gland resection.After mastering the connotation of each procedure,coders should pay attention to other surgical operations performed at the same time by another code such as any lymph node dissection(40.40-40.42),facial neurectomy 04.07,facial nerve graft 04.5,flap graft(27.57,25.59,86.71-86.72,86.74-86.75),salivary gland repair 26.49,etc.Coders should pay attention to medical knowledge,read surgical records carefully,and fully communicate with clinicians to ensure accurate,scientific and complete coding.