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K09Non-billableSave

K09 - Cysts of oral region, not elsewhere classified

ICD-10-CM Chapter 11: Diseases of the digestive system · K00-K14 Diseases of oral cavity and salivary glands (K00-K14) · Top-level category · FY2027

Coding Guidance

K09 is a non-billable heading. Report one of the 4 more specific codes below.

Includes, Excludes and Coding Notes

IncludesFrom K09

Conditions this code covers.

  • lesions showing histological features both of aneurysmal cyst and of another fibro-osseous lesion
Excludes 2 — Not Included HereFrom K09

Not part of this code; report both codes when the patient has both conditions.

  • cysts of jaw (M27.0-, M27.4-)
  • radicular cyst (K04.8)
Excludes 2 — Not Included HereFrom Chapter K00-K95

Not part of this code; report both codes when the patient has both conditions.

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

More Specific Codes (4)

K09.0Developmental odontogenic cysts→K09.1Developmental (nonodontogenic) cysts of oral region→K09.8Other cysts of oral region, not elsewhere classified→K09.9Cyst of oral region, unspecified→