Code Information

Diagnosis Code: 528.4

Short Description: Oral soft tissue cyst

Long Description: Cysts of oral soft tissues

Code Classification:

  • Diseases of the digestive system (520–579)
    • Diseases of oral cavity, salivary glands, and jaws (520-529)
      • 528 Diseases of the oral soft tissues, excluding lesions specific for gingiva and tongue
        • 528.4 Oral soft tissue cyst

Code Version: 2015 ICD-9-CM

References to Index of Diseases and Injuries

The code 528.4 has the following ICD-9-CM references to the Index of Diseases and Injuries
  • 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

Crosswalk Information

The code 528.4 converts into the following ICD-10 code(s):
ICD-9 Code ICD-10 Code ICD-10 Description
528.4 Right Arrow K09.8 Other cysts of oral region, not elsewhere classified
This ICD-9 to ICD-10 data is based on the 2018 General Equivalency Mapping (GEM) files published by the Centers for Medicare & Medicaid Services (CMS) for informational purposes only. The data is not an ICD-10 conversion tool and doesn’t guarantee clinical accuracy.

Similar Codes

ICD-9 Code ICD-9 Description
528.00 Stomatitis and mucositis, unspecified
528.01 Mucositis (ulcerative) due to antineoplastic therapy
528.02 Mucositis (ulcerative) due to other drugs
528.09 Other stomatitis and mucositis (ulcerative)
528.1 Cancrum oris
528.2 Oral aphthae
528.3 Cellulitis and abscess of oral soft tissues
528.5 Diseases of lips
528.6 Leukoplakia of oral mucosa, including tongue
528.71 Minimal keratinized residual ridge mucosa
528.72 Excessive keratinized residual ridge mucosa
528.79 Other disturbances of oral epithelium, including tongue
528.8 Oral submucosal fibrosis, including of tongue
528.9 Other and unspecified diseases of the oral soft tissues

This page was last updated on: 10/1/2014