K09.8

Other cysts of oral region, not elsewhere classified

Billable / specific

K09.8 is a billable, specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes in FY2027.

Inclusion terms

Applicable to

  • Dermoid cyst
  • Epidermoid cyst
  • Lymphoepithelial cyst
  • Epstein's pearl

Includes (from K09)

  • lesions showing histological features both of aneurysmal cyst and of another fibro-osseous lesion

Excludes2

Not included here — may be reported together when both conditions exist.

  • certain conditions originating in the perinatal period (P04-P96) (from K09)
  • certain infectious and parasitic diseases (A00-B99) (from K09)
  • complications of pregnancy, childbirth and the puerperium (O00-O9A) (from K09)
  • congenital malformations, deformations and chromosomal abnormalities (Q00-Q99) (from K09)
  • endocrine, nutritional and metabolic diseases (E00-E88) (from K09)
  • injury, poisoning and certain other consequences of external causes (S00-T88) (from K09)
  • neoplasms (C00-D49) (from K09)
  • symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94) (from K09)
  • cysts of jaw (M27.0-, M27.4-) (from K09)
  • radicular cyst (K04.8) (from K09)

Also known as

  • Dermoid cyst
  • Epidermoid cyst
  • Lymphoepithelial cyst
  • Epstein's pearl
  • Cyst, buccal
  • Cyst, dermoid, mouth
  • Cyst, dermoid, oral soft tissue
  • Cyst, epidermal, epidermoid, mouth
  • Cyst, epidermal, epidermoid, oral soft tissue
  • Cyst, lymphoepithelial, oral soft tissue
  • Cyst, mouth
  • Cyst, oral, region, specified NEC
  • Cyst, oral, soft tissue, specified NEC
  • Epstein's, pearl
  • Pearl, Epstein's

Parent code

  • K09Cysts of oral region, not elsewhere classifiedHeader

Related codes

  • K09.0Developmental odontogenic cystsBillable
  • K09.1Developmental (nonodontogenic) cysts of oral regionBillable
  • K09.9Cyst of oral region, unspecifiedBillable

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