Other disorders of teeth and supporting structures (K08) ICD-10-CM
The K08 code range covers other disorders of teeth and supporting structures with 90 ICD-10-CM diagnosis codes. 73 of them are billable and valid for claim submission in fiscal year 2026, and the category headers group them but cannot themselves be billed.
Type 2 Excludes
A type 2 excludes note represents "Not included here". An excludes2 note indicates that the condition excluded is not part of the condition represented by the code, but a patient may have both conditions at the same time. When an Excludes2 note appears under a code, it is acceptable to use both the code and the excluded code together, when appropriate.
Codes in the K08 Range 90 codes · 73 billable
- K08 Other disorders of teeth and supporting structuresNon-billable
- K08.0 Exfoliation of teeth due to systemic causes
- K08.1 Complete loss of teethNon-billable
- K08.10 Complete loss of teeth, unspecified causeNon-billable
- K08.101 Complete loss of teeth, unspecified cause, class I
- K08.102 Complete loss of teeth, unspecified cause, class II
- K08.103 Complete loss of teeth, unspecified cause, class III
- K08.104 Complete loss of teeth, unspecified cause, class IV
- K08.109 Complete loss of teeth, unspecified cause, unspecified class
- K08.11 Complete loss of teeth due to traumaNon-billable
- K08.111 Complete loss of teeth due to trauma, class I
- K08.112 Complete loss of teeth due to trauma, class II
- K08.113 Complete loss of teeth due to trauma, class III
- K08.114 Complete loss of teeth due to trauma, class IV
- K08.119 Complete loss of teeth due to trauma, unspecified class
- K08.12 Complete loss of teeth due to periodontal diseasesNon-billable
- K08.121 Complete loss of teeth due to periodontal diseases, class I
- K08.122 Complete loss of teeth due to periodontal diseases, class II
- K08.123 Complete loss of teeth due to periodontal diseases, class III
- K08.124 Complete loss of teeth due to periodontal diseases, class IV
- K08.129 Complete loss of teeth due to periodontal diseases, unspecified class
- K08.13 Complete loss of teeth due to cariesNon-billable
- K08.131 Complete loss of teeth due to caries, class I
- K08.132 Complete loss of teeth due to caries, class II
- K08.133 Complete loss of teeth due to caries, class III
- K08.134 Complete loss of teeth due to caries, class IV
- K08.139 Complete loss of teeth due to caries, unspecified class
- K08.19 Complete loss of teeth due to other specified causeNon-billable
- K08.191 Complete loss of teeth due to other specified cause, class I
- K08.192 Complete loss of teeth due to other specified cause, class II
- K08.193 Complete loss of teeth due to other specified cause, class III
- K08.194 Complete loss of teeth due to other specified cause, class IV
- K08.199 Complete loss of teeth due to other specified cause, unspecified class
- K08.2 Atrophy of edentulous alveolar ridgeNon-billable
- K08.20 Unspecified atrophy of edentulous alveolar ridge
- K08.21 Minimal atrophy of the mandible
- K08.22 Moderate atrophy of the mandible
- K08.23 Severe atrophy of the mandible
- K08.24 Minimal atrophy of maxilla
- K08.25 Moderate atrophy of the maxilla
- K08.26 Severe atrophy of the maxilla
- K08.3 Retained dental root
- K08.4 Partial loss of teethNon-billable
- K08.40 Partial loss of teeth, unspecified causeNon-billable
- K08.401 Partial loss of teeth, unspecified cause, class I
- K08.402 Partial loss of teeth, unspecified cause, class II
- K08.403 Partial loss of teeth, unspecified cause, class III
- K08.404 Partial loss of teeth, unspecified cause, class IV
- K08.409 Partial loss of teeth, unspecified cause, unspecified class
- K08.41 Partial loss of teeth due to traumaNon-billable
- K08.411 Partial loss of teeth due to trauma, class I
- K08.412 Partial loss of teeth due to trauma, class II
- K08.413 Partial loss of teeth due to trauma, class III
- K08.414 Partial loss of teeth due to trauma, class IV
- K08.419 Partial loss of teeth due to trauma, unspecified class
- K08.42 Partial loss of teeth due to periodontal diseasesNon-billable
- K08.421 Partial loss of teeth due to periodontal diseases, class I
- K08.422 Partial loss of teeth due to periodontal diseases, class II
- K08.423 Partial loss of teeth due to periodontal diseases, class III
- K08.424 Partial loss of teeth due to periodontal diseases, class IV
- K08.429 Partial loss of teeth due to periodontal diseases, unspecified class
- K08.43 Partial loss of teeth due to cariesNon-billable
- K08.431 Partial loss of teeth due to caries, class I
- K08.432 Partial loss of teeth due to caries, class II
- K08.433 Partial loss of teeth due to caries, class III
- K08.434 Partial loss of teeth due to caries, class IV
- K08.439 Partial loss of teeth due to caries, unspecified class
- K08.49 Partial loss of teeth due to other specified causeNon-billable
- K08.491 Partial loss of teeth due to other specified cause, class I
- K08.492 Partial loss of teeth due to other specified cause, class II
- K08.493 Partial loss of teeth due to other specified cause, class III
- K08.494 Partial loss of teeth due to other specified cause, class IV
- K08.499 Partial loss of teeth due to other specified cause, unspecified class
- K08.5 Unsatisfactory restoration of toothNon-billable
- K08.50 Unsatisfactory restoration of tooth, unspecified
- K08.51 Open restoration margins of tooth
- K08.52 Unrepairable overhanging of dental restorative materials
- K08.53 Fractured dental restorative materialNon-billable
- K08.530 Fractured dental restorative material without loss of material
- K08.531 Fractured dental restorative material with loss of material
- K08.539 Fractured dental restorative material, unspecified
- K08.54 Contour of existing restoration of tooth biologically incompatible with oral health
- K08.55 Allergy to existing dental restorative material
- K08.56 Poor aesthetic of existing restoration of tooth
- K08.59 Other unsatisfactory restoration of tooth
- K08.8 Other specified disorders of teeth and supporting structuresNon-billable
- K08.81 Primary occlusal trauma
- K08.82 Secondary occlusal trauma
- K08.89 Other specified disorders of teeth and supporting structures
- K08.9 Disorder of teeth and supporting structures, unspecified
Clinical Terms in This Code Range
Definitions from the National Library of Medicine for conditions coded in the K08 range.
Alveolar Bone Loss
Resorption or wasting of the tooth-supporting bone (ALVEOLAR PROCESS) in the MAXILLA or MANDIBLE.
Tooth Loss
The failure to retain teeth as a result of disease or injury.
Toothache
Pain in the adjacent areas of the teeth.
About the K08 Code Range
The ICD-10 codes in section K08 cover a wide range of other disorders of teeth and supporting structures. These codes are used to classify conditions such as exfoliation and loss of teeth due to various causes, atrophy of the alveolar ridge, retained dental roots, unsatisfactory dental restorations, and occlusal trauma.
Specifically, K08.0 identifies exfoliation of teeth due to systemic causes, commonly known as early tooth exfoliation or premature tooth loss. The series of codes from K08.1 to K08.19 describe complete loss of teeth, with subclassifications based on cause—such as trauma, periodontal disease, or caries—and severity (classes I-IV). Partial tooth loss is similarly classified in the K08.4 range. Atrophy of the alveolar bone in edentulous patients is coded under K08.2. The section also includes codes for complications related to dental restorations like defective or fractured restorations (K08.5) and allergic reactions to restorative materials (K08.55). Lastly, K08.8 covers other specified disorders, including primary and secondary occlusal trauma, while K08.9 is reserved for unspecified disorders of teeth and supporting structures. Understanding the ICD-10 code for disorders of teeth and supporting structures helps accurately document and address various dental conditions affecting tooth retention and jaw health.
Questions About This Page
How many billable codes are in the K08 range?
Of the 90 codes in this range, 73 are billable and valid for claim submission from October 1, 2025 through September 30, 2026. Category header codes group them but cannot be reported on claims.
What does the K08 range classify?
The range classifies other disorders of teeth and supporting structures. Each code links to its own reference page with billing status, MS-DRG grouping, coding notes, and clinical information.
Related References
Source: CMS FY 2026 ICD-10-CM Tabular List and order file, effective October 1, 2025 through September 30, 2026.
