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ICD-10-CM Current in FY 2027

K09.0

Developmental odontogenic cysts

Release
FY 2027
Effective

Hierarchy

Where K09.0 sits in the official hierarchy. Each level is the code it is classified under.

  1. K09 Parent Cysts of oral region, not elsewhere classified
  2. K09.0 This code Developmental odontogenic cysts

Official Coding Notes

Reproduced verbatim from the FY 2027 ICD-10-CM files. Notes labelled as inherited are declared on a parent code and apply here too.

Includes

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

Inherited from K09 — Cysts of oral region, not elsewhere classified

Inclusion Terms

Dentigerous cyst

Inclusion Terms

Eruption cyst

Inclusion Terms

Follicular cyst

Inclusion Terms

Gingival cyst

Inclusion Terms

Lateral periodontal cyst

Inclusion Terms

Primordial cyst

Excludes2

cysts of jaw ( M27.0- , M27.4- )

Inherited from K09 — Cysts of oral region, not elsewhere classified

Excludes2

radicular cyst ( K04.8 )

Inherited from K09 — Cysts of oral region, not elsewhere classified

Excludes2

keratocysts ( D16.4 , D16.5 )

Excludes2

odontogenic keratocystic tumors ( D16.4 , D16.5 )

Version History

How K09.0 appears in each release imported from the official files, newest first.

  1. FY 2027 Effective

    Current

    Developmental odontogenic cysts

  2. FY 2026 Effective

    Unchanged

    Developmental odontogenic cysts

Other codes under K09

Codes whose official notes reference K09.0

Data Source

Code information on this page is derived from the FY 2027 ICD-10-CM files published by CDC NCHS and CMS.

Release
FY 2027
Effective
Source file
icd10cm-code-descriptions-2027.zip

Official ICD-10-CM source files (opens in a new tab)

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