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K09.9

K09.9: Cyst of oral region, unspecified

Billable / specific codeICD-10-CM

K09.9 is a billable, specific ICD-10-CM code for cyst of oral region, unspecified. It is valid for submission on a claim.

Check K09.9 with the rest of the claim: free scrubber

Excludes2 inherited from the categories above K09.9

Not part of this code, but both may be coded when both are present.

Written on K09: Cysts of oral region, not elsewhere classified

Other codes that can never be billed with K09.9

Their own Excludes1 notes name this code, so the conflict is not listed above.

  • M27.4Other and unspecified cysts of jaw

Risk adjustment

No CMS-HCC V28 category: this code does not change a RAF score.

Medicare coverage

K09.9 is named in 1 Medicare coverage policy: 1 listing it as supporting medical necessity. Which one applies depends on your Medicare contractor.

  • A54111Billing and Coding: Speech Language Pathology (SLP) Services: Communication Disorders

Alphabetic index entries that lead here

  • Cyst›oral›region
  • Cyst›oral›soft tissue

Code history

Unchanged in every release from FY2024 to FY2027.

Other codes under K09

ICD-10-CMFY2027· effective October 1, 2026

Loaded directly from the CMS/NCHS ICD-10-CM public-domain release: see data sources and our editorial policy. If this page disagrees with the CMS tabular list, this page is wrong. Reference information for professional coders; not medical or billing advice.