2008 ICD-9-CM Volume 1 Diagnosis Codes Home > Diseases Of The Digestive System 520-579 > Diseases Of Oral Cavity, Salivary Glands, And Jaws 520-529 > Diseases Of The Oral Soft Tissues Excluding Lesions Specific For Gingiva And Tongue 528.* > 2008 ICD-9-CM Diagnosis 528.4 Cysts of oral soft tissues  On October 1, 2008 the 2009 ICD-9-CM codes came into effect. Therefore, this code may be out of date. The 2009 version of ICD-9-CM 528.4 can be accessed here. 528.4 is a specific code that can be used to specify a diagnosis 528.4 contains 12 index entries View the ICD-9-CM Volume 1 528.* hierarchy ICD9Data's sister site ProcedureCodes.com launches with the 2008/09 CPT® codes - read more on the ICD9Data.com blog. 528.4 also known as: Dermoid cyst of mouth Epidermoid cyst of mouth Epstein's pearl of mouth Lymphoepithelial cyst of mouth Nasoalveolar cyst of mouth Nasolabial cyst of mouth 528.4 excludes: cyst: gingiva (523.8) tongue (529.8) Index entries containing 528.4: Cyst (mucus) (retention) (serous) (simple) buccal 528.4 dermoid (M9084/0) - see also Neoplasm, by site, benign mouth 528.4 oral soft tissue 528.4 epidermoid (inclusion) (see also Cyst, skin) 706.2 mouth 528.4 oral soft tissue 528.4 lymphoepithelial mouth 528.4 oral soft tissue 528.4 mouth 528.4 nasoalveolar 528.4 nasolabial 528.4 oral soft tissue (dermoid) (epidermoid) (lymphoepithelial) 528.4 Epstein's pearl (mouth) 528.4