K08.20
Billable codeUnspecified atrophy of edentulous alveolar ridge
The ICD-10 code for unspecified atrophy of edentulous alveolar ridge is K08.20.
Clinical notes
Also known as
Alternate wording, synonyms, or specific conditions that fall under this code, listed to help confirm you've picked the right one.
- Atrophy of the mandible NOS
- Atrophy of the maxilla NOS
Documentation support
General coding-documentation guidance — not a substitute for payer-specific requirements or professional coding judgment.
- •This code describes an unspecified presentation. If the medical record documents a more specific detail (e.g. laterality, type, or affected site), a more specific sibling code should be used instead — see Related codes below.
- •As a general rule, code to the highest level of specificity supported by the documentation in the medical record.
Related codes in this category
- 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
- K08.20Unspecified atrophy of edentulous alveolar ridge
ICD-9-CM equivalent
Informational only — GEM mappings are approximate, not guaranteed one-to-one equivalents. Verify before use in billing.
- 52520
Associated MS-DRGs
K08.20 can serve as the principal diagnosis for these Medicare Severity Diagnosis-Related Groups.
Informational only — actual DRG assignment also depends on procedures, complications/comorbidities (CC/MCC), discharge status, and payer-specific rules not reflected here.
- DRG 011Tracheostomy for Face, Mouth and Neck Diagnoses or Laryngectomy with MCC
- DRG 012Tracheostomy for Face, Mouth and Neck Diagnoses or Laryngectomy with CC
- DRG 013Tracheostomy for Face, Mouth and Neck Diagnoses or Laryngectomy without CC/MCC
- DRG 157Dental and Oral Diseases with MCC
- DRG 158Dental and Oral Diseases with CC
- DRG 159Dental and Oral Diseases without CC/MCC