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M27.4

M27.4: Other and unspecified cysts of jaw

Non-billable headerICD-10-CM

M27.4 is a non-billable header ICD-10-CM code for other and unspecified cysts of jaw. It cannot be billed on its own: choose one of the more specific child codes below.

Excludes1: never code together

These conditions cannot occur together. Billing both on the same encounter is a denial.

  • cysts of oral region (K09.-)
  • latent bone cyst of jaw (M27.0)
  • Stafne's cyst (M27.0)

Other codes that can never be billed with M27.4

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

Risk adjustment

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

Code history

Unchanged in every release from FY2024 to FY2027.

Code to one of these instead M27.4

2 child codes. Green means billable.

Other codes under M27

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.