Specific code 2015 ICD-9-CM Diagnosis Code 522.8
Radicular cyst
  • 2015
  • Billable Thru Sept 30/2015
  • Non-Billable On/After Oct 1/2015

  • ICD-9-CM 522.8 is a billable medical code that can be used to indicate a diagnosis on a reimbursement claim, however, 522.8 should only be used for claims with a date of service on or before September 30, 2015. For claims with a date of service on or after October 1, 2015, use an equivalent ICD-10-CM code (or codes).
Convert to ICD-10-CM: 522.8 converts directly to:
  • 2015/16 ICD-10-CM K04.8 Radicular cyst
Clinical Information
  • Slow-growing fluid-filled epithelial sac at the apex of a tooth with a nonvital pulp or defective root canal filling
522.8 Excludes
  • lateral developmental or lateral periodontal cyst (526.0)
Applies To
  • Cyst:
    • apical (periodontal)
    • periapical
    • radiculodental
    • residual radicular
ICD-9-CM Volume 2 Index entries containing back-references to 522.8:
  • Cyst (mucus) (retention) (serous) (simple)
    • apical (periodontal) (tooth) 522.8
    • dental 522.8
    • periapical 522.8
    • periodontal 522.8
    • radicular (residual) 522.8
    • radiculodental 522.8
    • residual (radicular) 522.8
    • tooth (dental root) 522.8
  • Periodontal
    • cyst 522.8
ICD-9-CM codes are used in medical billing and coding to describe diseases, injuries, symptoms and conditions. ICD-9-CM 522.8 is one of thousands of ICD-9-CM codes used in healthcare. Although ICD-9-CM and CPT codes are largely numeric, they differ in that CPT codes describe medical procedures and services. Can't find a code? Start at the root of ICD-9-CM, check the 2015 ICD-9-CM Index or use the search engine at the top of this page to lookup any code.