ICD-10-CM diagnosis code
K08.23 Severe atrophy of the mandible
- Billable
- Yes, a complete code (FY2026)
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Other codes in K08
73 complete codes in this category.
- K08.193Complete loss of teeth due to other specified cause, class III
- K08.194Complete loss of teeth due to other specified cause, class IV
- K08.199Complete loss of teeth due to other specified cause, unspecified class
- K08.20Unspecified atrophy of edentulous alveolar ridge
- K08.21Minimal atrophy of the mandible
- K08.22Moderate atrophy of the mandible
- K08.23Severe atrophy of the mandible
- K08.24Minimal atrophy of maxilla
- K08.25Moderate atrophy of the maxilla
- K08.26Severe atrophy of the maxilla
- K08.3Retained dental root
- K08.401Partial loss of teeth, unspecified cause, class I
Documentation tips
- Make sure the note supports every element of the title, “Severe atrophy of the mandible”: each detail in it should be traceable to the history, examination or assessment.
- Code to the highest specificity the documentation supports. If a detail is missing from the note, add it to the note rather than choosing a less specific code by default.
- Check the Tabular List and official guidelines for instructional notes (“code first”, “use additional code”, Excludes1/Excludes2) that apply to K08.
The international WHO ICD-10 also has K08, with its inclusion and exclusion notes; titles and detail can differ from ICD-10-CM.
ICD-10-CM is developed by the National Center for Health Statistics (NCHS), Centers for Disease Control and Prevention, U.S. Department of Health and Human Services, and is based on the WHO ICD-10. Codes and titles are reproduced unchanged from the FY2026 code list (effective 1 October 2025). Their use here does not imply endorsement by CDC, HHS or the U.S. Government. Changes effective on or after 1 October 2026 may not be reflected yet; check the current release at cdc.gov or cms.gov before submitting claims.
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