ICD-10-CM 2027 diagnosis code
K08.2Atrophy of edentulous alveolar ridge
K08.2 is a header code, so it can't be reported by itself. Choose one of the 7 more specific codes beneath it.
Code unchanged since ICD-10-CM took effect on October 1, 2015. Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data
About K08.2
K08.2 is the ICD-10-CM diagnosis code for atrophy of edentulous alveolar ridge. It belongs to category K08 (other disorders of teeth and supporting structures), block K00-K14 (diseases of oral cavity and salivary glands) and chapter 11 (diseases of the digestive system). It is a header code, so it can't be reported by itself; one of its 7 subcodes must be used instead.
Within K08 (other disorders of teeth and supporting structures), K08.2 is specifically for atrophy of edentulous alveolar ridge. Related codes cover Exfoliation of teeth due to systemic causes (K08.0), complete loss of teeth (K08.1), retained dental root (K08.3), partial loss of teeth (K08.4), unsatisfactory restoration of tooth (K08.5), other specified disorders of teeth and supporting structures (K08.8) and disorder of teeth and supporting structures, unspecified (K08.9).
To report this condition, pick the subcode that matches the documentation: K08.20 (ridge), K08.21 (mandible), K08.22 (mandible), K08.23 (mandible), K08.24 (maxilla), K08.25 (maxilla) and K08.26 (maxilla).
It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.
Specific codes under K08.2
- K08.20Unspecified atrophy of edentulous alveolar ridgeBillable
- K08.21Minimal atrophy of the mandibleBillable
- K08.22Moderate atrophy of the mandibleBillable
- K08.23Severe atrophy of the mandibleBillable
- K08.24Minimal atrophy of maxillaBillable
- K08.25Moderate atrophy of the maxillaBillable
- K08.26Severe atrophy of the maxillaBillable
Notes that apply from higher levels
Instructions written at a parent level also apply to K08.2.
Broader instructions also apply from Chapter 11: Diseases of the digestive system.
Codes whose notes reference K08.2
- K06Excludes2
Code history
- 2016
- 2017
- 2018
- 2019
- 2020
- 2021
- 2022
- 2023
- 2024
- 2025
- 2026
- 2027
- FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
- No changes since FY2016.
Common questions about K08.2
Is K08.2 billable?
- No. K08.2 is a header code. Report one of its more specific subcodes instead.