DxCodebookFY2027 · Oct 1, 2026 – Sep 30, 2027

Category · FY2027

K08 Other disorders of teeth and supporting structures

  • Header · not billable

K08 is not billable. The category heads 73 billable codes in FY2027, grouped under 8 subdivisions.

Index → code

Where it sits

  1. Chapter 11 Diseases of the digestive system (K00-K95)
  2. K00-K14 Diseases of oral cavity and salivary glands (K00-K14)
  3. K08 Other disorders of teeth and supporting structures
Billable codes
73
Subdivisions
8
CC / MCC codes
0 / 0
HCC V28 codes
0
New FY2027
0
Index entries
142

Codes in K08

  1. K08.0
    Exfoliation of teeth due to systemic causes
    Billable
    Code also 1

    Code also

    • underlying systemic condition
  2. K08.1
    Complete loss of teeth
    Header
    Inclusion terms 1, Excludes1 3

    Inclusion terms

    • Acquired loss of teeth, complete

    Excludes1

    • congenital absence of teeth (K00.0) K00.0
    • exfoliation of teeth due to systemic causes (K08.0) K08.0
    • partial loss of teeth (K08.4-) K08.4
  3. K08.10
    Complete loss of teeth, unspecified cause
    Header
  4. K08.101
    Complete loss of teeth, unspecified cause, class I
    Billable
  5. K08.102
    Complete loss of teeth, unspecified cause, class II
    Billable
  6. K08.103
    Complete loss of teeth, unspecified cause, class III
    Billable
  7. K08.104
    Complete loss of teeth, unspecified cause, class IV
    Billable
  8. K08.109
    Complete loss of teeth, unspecified cause, unspecified class
    Billable
    Inclusion terms 1

    Inclusion terms

    • Edentulism NOS
  9. K08.11
    Complete loss of teeth due to trauma
    Header
  10. K08.111
    Complete loss of teeth due to trauma, class I
    Billable
  11. K08.112
    Complete loss of teeth due to trauma, class II
    Billable
  12. K08.113
    Complete loss of teeth due to trauma, class III
    Billable
  13. K08.114
    Complete loss of teeth due to trauma, class IV
    Billable
  14. K08.119
    Complete loss of teeth due to trauma, unspecified class
    Billable
  15. K08.12
    Complete loss of teeth due to periodontal diseases
    Header
  16. K08.121
    Complete loss of teeth due to periodontal diseases, class I
    Billable
  17. K08.122
    Complete loss of teeth due to periodontal diseases, class II
    Billable
  18. K08.123
    Complete loss of teeth due to periodontal diseases, class III
    Billable
  19. K08.124
    Complete loss of teeth due to periodontal diseases, class IV
    Billable
  20. K08.129
    Complete loss of teeth due to periodontal diseases, unspecified class
    Billable
  21. K08.13
    Complete loss of teeth due to caries
    Header
  22. K08.131
    Complete loss of teeth due to caries, class I
    Billable
  23. K08.132
    Complete loss of teeth due to caries, class II
    Billable
  24. K08.133
    Complete loss of teeth due to caries, class III
    Billable
  25. K08.134
    Complete loss of teeth due to caries, class IV
    Billable
  26. K08.139
    Complete loss of teeth due to caries, unspecified class
    Billable
  27. K08.19
    Complete loss of teeth due to other specified cause
    Header
  28. K08.191
    Complete loss of teeth due to other specified cause, class I
    Billable
  29. K08.192
    Complete loss of teeth due to other specified cause, class II
    Billable
  30. K08.193
    Complete loss of teeth due to other specified cause, class III
    Billable
  31. K08.194
    Complete loss of teeth due to other specified cause, class IV
    Billable
  32. K08.199
    Complete loss of teeth due to other specified cause, unspecified class
    Billable
  33. K08.2
    Atrophy of edentulous alveolar ridge
    Header
  34. K08.20
    Unspecified atrophy of edentulous alveolar ridge
    Billable
    Inclusion terms 2

    Inclusion terms

    • Atrophy of the mandible NOS
    • Atrophy of the maxilla NOS
  35. K08.21
    Minimal atrophy of the mandible
    Billable
    Inclusion terms 1

    Inclusion terms

    • Minimal atrophy of the edentulous mandible
  36. K08.22
    Moderate atrophy of the mandible
    Billable
    Inclusion terms 1

    Inclusion terms

    • Moderate atrophy of the edentulous mandible
  37. K08.23
    Severe atrophy of the mandible
    Billable
    Inclusion terms 1

    Inclusion terms

    • Severe atrophy of the edentulous mandible
  38. K08.24
    Minimal atrophy of maxilla
    Billable
    Inclusion terms 1

    Inclusion terms

    • Minimal atrophy of the edentulous maxilla
  39. K08.25
    Moderate atrophy of the maxilla
    Billable
    Inclusion terms 1

    Inclusion terms

    • Moderate atrophy of the edentulous maxilla
  40. K08.26
    Severe atrophy of the maxilla
    Billable
    Inclusion terms 1

    Inclusion terms

    • Severe atrophy of the edentulous maxilla
  41. K08.3
    Retained dental root
    Billable
  42. K08.4
    Partial loss of teeth
    Header
    Inclusion terms 1, Excludes1 2, Excludes2 1

    Inclusion terms

    • Acquired loss of teeth, partial

    Excludes1

    • complete loss of teeth (K08.1-) K08.1
    • congenital absence of teeth (K00.0) K00.0

    Excludes2

    • exfoliation of teeth due to systemic causes (K08.0) K08.0
  43. K08.40
    Partial loss of teeth, unspecified cause
    Header
  44. K08.401
    Partial loss of teeth, unspecified cause, class I
    Billable
  45. K08.402
    Partial loss of teeth, unspecified cause, class II
    Billable
  46. K08.403
    Partial loss of teeth, unspecified cause, class III
    Billable
  47. K08.404
    Partial loss of teeth, unspecified cause, class IV
    Billable
  48. K08.409
    Partial loss of teeth, unspecified cause, unspecified class
    Billable
    Inclusion terms 1

    Inclusion terms

    • Tooth extraction status NOS
  49. K08.41
    Partial loss of teeth due to trauma
    Header
  50. K08.411
    Partial loss of teeth due to trauma, class I
    Billable
  51. K08.412
    Partial loss of teeth due to trauma, class II
    Billable
  52. K08.413
    Partial loss of teeth due to trauma, class III
    Billable
  53. K08.414
    Partial loss of teeth due to trauma, class IV
    Billable
  54. K08.419
    Partial loss of teeth due to trauma, unspecified class
    Billable
  55. K08.42
    Partial loss of teeth due to periodontal diseases
    Header
  56. K08.421
    Partial loss of teeth due to periodontal diseases, class I
    Billable
  57. K08.422
    Partial loss of teeth due to periodontal diseases, class II
    Billable
  58. K08.423
    Partial loss of teeth due to periodontal diseases, class III
    Billable
  59. K08.424
    Partial loss of teeth due to periodontal diseases, class IV
    Billable
  60. K08.429
    Partial loss of teeth due to periodontal diseases, unspecified class
    Billable
  61. K08.43
    Partial loss of teeth due to caries
    Header
  62. K08.431
    Partial loss of teeth due to caries, class I
    Billable
  63. K08.432
    Partial loss of teeth due to caries, class II
    Billable
  64. K08.433
    Partial loss of teeth due to caries, class III
    Billable
  65. K08.434
    Partial loss of teeth due to caries, class IV
    Billable
  66. K08.439
    Partial loss of teeth due to caries, unspecified class
    Billable
  67. K08.49
    Partial loss of teeth due to other specified cause
    Header
  68. K08.491
    Partial loss of teeth due to other specified cause, class I
    Billable
  69. K08.492
    Partial loss of teeth due to other specified cause, class II
    Billable
  70. K08.493
    Partial loss of teeth due to other specified cause, class III
    Billable
  71. K08.494
    Partial loss of teeth due to other specified cause, class IV
    Billable
  72. K08.499
    Partial loss of teeth due to other specified cause, unspecified class
    Billable
  73. K08.5
    Unsatisfactory restoration of tooth
    Header
    Inclusion terms 2, Excludes1 1, Excludes2 2

    Inclusion terms

    • Defective bridge, crown, filling
    • Defective dental restoration

    Excludes1

    • dental restoration status (Z98.811) Z98.811

    Excludes2

    • endosseous dental implant failure (M27.6-) M27.6
    • unsatisfactory endodontic treatment (M27.5-) M27.5
  74. K08.50
    Unsatisfactory restoration of tooth, unspecified
    Billable
    Inclusion terms 1

    Inclusion terms

    • Defective dental restoration NOS
  75. K08.51
    Open restoration margins of tooth
    Billable
    Inclusion terms 3

    Inclusion terms

    • Dental restoration failure of marginal integrity
    • Open margin on tooth restoration
    • Poor gingival margin to tooth restoration
  76. K08.52
    Unrepairable overhanging of dental restorative materials
    Billable
    Inclusion terms 1

    Inclusion terms

    • Overhanging of tooth restoration
  77. K08.53
    Fractured dental restorative material
    Header
    Excludes1 2

    Excludes1

    • cracked tooth (K03.81) K03.81
    • traumatic fracture of tooth (S02.5) S02.5
  78. K08.530
    Fractured dental restorative material without loss of material
    Billable
  79. K08.531
    Fractured dental restorative material with loss of material
    Billable
  80. K08.539
    Fractured dental restorative material, unspecified
    Billable
  81. K08.54
    Contour of existing restoration of tooth biologically incompatible with oral health
    Billable
    Inclusion terms 3

    Inclusion terms

    • Dental restoration failure of periodontal anatomical integrity
    • Unacceptable contours of existing restoration of tooth
    • Unacceptable morphology of existing restoration of tooth
  82. K08.55
    Allergy to existing dental restorative material
    Billable
    Use additional code 1

    Use additional code

    • code to identify the specific type of allergy
  83. K08.56
    Poor aesthetic of existing restoration of tooth
    Billable
    Inclusion terms 1

    Inclusion terms

    • Dental restoration aesthetically inadequate or displeasing
  84. K08.59
    Other unsatisfactory restoration of tooth
    Billable
    Inclusion terms 1

    Inclusion terms

    • Other defective dental restoration
  85. K08.8
    Other specified disorders of teeth and supporting structures
    Header
  86. K08.81
    Primary occlusal trauma
    Billable
  87. K08.82
    Secondary occlusal trauma
    Billable
  88. K08.89
    Other specified disorders of teeth and supporting structures
    Billable
    Inclusion terms 5

    Inclusion terms

    • Enlargement of alveolar ridge NOS
    • Insufficient anatomic crown height
    • Insufficient clinical crown length
    • Irregular alveolar process
    • Toothache NOS
  89. K08.9
    Disorder of teeth and supporting structures, unspecified
    Billable

Sources of each column.

Instructions

At K08

Excludes2

  • dentofacial anomalies [including malocclusion] (M26.-) M26
  • disorders of jaw (M27.-) M27

Notes that also apply

Chapter 11 instructions (Excludes2 8): printed on the chapter 11 page.

Index entries

  • Unextracted dental root → K08.3
  • Overhanging of dental restorative material (unrepairable) → K08.52
  • Unrepairable overhanging of dental restorative materials → K08.52
  • Odontalgia → K08.89
  • Odontorrhagia → K08.89
  • Toothache → K08.89
  • Exfoliationteeth, due to systemic causes → K08.0
  • Anodontia (complete) (partial) (vera)acquired → K08.10
  • Atrophy, atrophic (of)alveolar process or ridge (edentulous) → K08.20
  • Atrophy, atrophic (of)edentulous alveolar ridge → K08.20
  • Atrophy, atrophic (of)mandible (edentulous) → K08.20
  • Atrophy, atrophic (of)maxilla → K08.20
  • Buriedroots → K08.3
  • Embedded tooth, teethroot only → K08.3
  • Retentiondental root → K08.3
  • Status (post)tooth (teeth) extraction → K08.409
  • Defect, defectivedental restoration → K08.50
  • Defect, defectiverestoration, dental → K08.50
  • Restoration (of)unsatisfactory, of tooth → K08.50
  • Unsatisfactoryrestoration of tooth → K08.50
  • Open, openingmargin on tooth restoration → K08.51
  • Open, openingrestoration margins of tooth → K08.51
  • Poorgingival margin to tooth restoration → K08.51
  • Restorative material (dental)unrepairable overhanging of → K08.52
  • Fracture, pathological (pathologic)dental restorative material → K08.539
  • Fracture, pathological (pathologic)restorative material (dental) → K08.539
  • Fracture, traumatic (abduction) (adduction) (separation)dental restorative material → K08.539
  • Fracture, traumatic (abduction) (adduction) (separation)restorative material (dental) → K08.539
  • Restorative material (dental)fractured → K08.539
  • Unacceptablecontours of tooth → K08.54
  • Unacceptablemorphology of tooth → K08.54
  • Allergy, allergic (reaction) (to)dental restorative material (existing) → K08.55
  • Restorative material (dental)allergy to → K08.55
  • Inadequate, inadequacyaesthetics of dental restoration → K08.56
  • Pooraesthetic of existing restoration of tooth → K08.56
  • Enlargement, enlargedalveolar ridge → K08.89
  • Hemorrhage, hemorrhagic (concealed)alveolus → K08.89
  • Impaired, impairment (function)mastication → K08.89
  • Insufficiency, insufficientanatomic crown height → K08.89
  • Insufficiency, insufficientclinical crown length → K08.89

102 more, longer entries are not listed; the search box finds them by word.

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