DxCodebookFY2027 · Oct 1, 2026 – Sep 30, 2027

Category · FY2027

H74 Other disorders of middle ear mastoid

  • Header · not billable

H74 is not billable. The category heads 36 billable codes in FY2027, grouped under 7 subdivisions.

Index → code

  • Tympanosclerosis → H74.0
  • Discontinuity, ossicles, ear → H74.2-
  • Cariesmiddle ear → H74.8

Where it sits

  1. Chapter 8 Diseases of the ear and mastoid process (H60-H95)
  2. H65-H75 Diseases of middle ear and mastoid (H65-H75)
  3. H74 Other disorders of middle ear mastoid
Billable codes
36
Subdivisions
7
CC / MCC codes
0 / 0
HCC V28 codes
0
New FY2027
0
Index entries
13

Codes in H74

  1. H74.0
    Tympanosclerosis
    Header
  2. H74.01
    Tympanosclerosis, right ear
    Billable
  3. H74.02
    Tympanosclerosis, left ear
    Billable
  4. H74.03
    Tympanosclerosis, bilateral
    Billable
  5. H74.09
    Tympanosclerosis, unspecified ear
    Billable
  6. H74.1
    Adhesive middle ear disease
    Header
    Inclusion terms 1, Excludes1 1

    Inclusion terms

    • Adhesive otitis

    Excludes1

  7. H74.11
    Adhesive right middle ear disease
    Billable
  8. H74.12
    Adhesive left middle ear disease
    Billable
  9. H74.13
    Adhesive middle ear disease, bilateral
    Billable
  10. H74.19
    Adhesive middle ear disease, unspecified ear
    Billable
  11. H74.2
    Discontinuity and dislocation of ear ossicles
    Header
  12. H74.20
    Discontinuity and dislocation of ear ossicles, unspecified ear
    Billable
  13. H74.21
    Discontinuity and dislocation of right ear ossicles
    Billable
  14. H74.22
    Discontinuity and dislocation of left ear ossicles
    Billable
  15. H74.23
    Discontinuity and dislocation of ear ossicles, bilateral
    Billable
  16. H74.3
    Other acquired abnormalities of ear ossicles
    Header
  17. H74.31
    Ankylosis of ear ossicles
    Header
  18. H74.311
    Ankylosis of ear ossicles, right ear
    Billable
  19. H74.312
    Ankylosis of ear ossicles, left ear
    Billable
  20. H74.313
    Ankylosis of ear ossicles, bilateral
    Billable
  21. H74.319
    Ankylosis of ear ossicles, unspecified ear
    Billable
  22. H74.32
    Partial loss of ear ossicles
    Header
  23. H74.321
    Partial loss of ear ossicles, right ear
    Billable
  24. H74.322
    Partial loss of ear ossicles, left ear
    Billable
  25. H74.323
    Partial loss of ear ossicles, bilateral
    Billable
  26. H74.329
    Partial loss of ear ossicles, unspecified ear
    Billable
  27. H74.39
    Other acquired abnormalities of ear ossicles
    Header
  28. H74.391
    Other acquired abnormalities of right ear ossicles
    Billable
  29. H74.392
    Other acquired abnormalities of left ear ossicles
    Billable
  30. H74.393
    Other acquired abnormalities of ear ossicles, bilateral
    Billable
  31. H74.399
    Other acquired abnormalities of ear ossicles, unspecified ear
    Billable
  32. H74.4
    Polyp of middle ear
    Header
  33. H74.40
    Polyp of middle ear, unspecified ear
    Billable
  34. H74.41
    Polyp of right middle ear
    Billable
  35. H74.42
    Polyp of left middle ear
    Billable
  36. H74.43
    Polyp of middle ear, bilateral
    Billable
  37. H74.8
    Other specified disorders of middle ear and mastoid
    Header
  38. H74.8X
    Other specified disorders of middle ear and mastoid
    Header
  39. H74.8X1
    Other specified disorders of right middle ear and mastoid
    Billable
  40. H74.8X2
    Other specified disorders of left middle ear and mastoid
    Billable
  41. H74.8X3
    Other specified disorders of middle ear and mastoid, bilateral
    Billable
  42. H74.8X9
    Other specified disorders of middle ear and mastoid, unspecified ear
    Billable
  43. H74.9
    Unspecified disorder of middle ear and mastoid
    Header
  44. H74.90
    Unspecified disorder of middle ear and mastoid, unspecified ear
    Billable
  45. H74.91
    Unspecified disorder of right middle ear and mastoid
    Billable
  46. H74.92
    Unspecified disorder of left middle ear and mastoid
    Billable
  47. H74.93
    Unspecified disorder of middle ear and mastoid, bilateral
    Billable

Sources of each column.

Instructions

At H74

Excludes2

  • mastoiditis (H70.-) H70

Notes that also apply

Chapter 8 instructions (Notes 1, Excludes2 8): printed on the chapter 8 page.

Index entries

  • Tympanosclerosis → H74.0
  • Discontinuity, ossicles, ear → H74.2-
  • Otitis (acute)adhesive → H74.1
  • Ankylosis (fibrous) (osseous) (joint)ear ossicles → H74.31-
  • Loss (of)ossicles, ear (partial) → H74.32-
  • Abnormal, abnormality, abnormalitiesear ossicles, acquired NEC → H74.39-
  • Polyp, polypusear (middle) → H74.4-
  • Cariesmiddle ear → H74.8
  • Cicatrix (adherent) (contracted) (painful) (vicious)middle ear → H74.8
  • Fistula (cutaneous)middle ear → H74.8
  • Adhesions, adhesive (postinfective)earmiddle → H74.1-
  • Disorder (of)earmiddle → H74.9-
  • Disorder (of)earmiddleadhesive → H74.1-

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