DxCodebookFY2027 · Oct 1, 2026 – Sep 30, 2027

Category · FY2027

H66 Suppurative and unspecified otitis media

  • Header · not billable

H66 is not billable. The category heads 36 billable codes in FY2027, grouped under 6 subdivisions.

Index → code

  • Otitis (acute) → H66.90
  • Disease, diseasedatticoantral, chronic → H66.20
  • Disease, diseasedpersistent mucosal (middle ear) → H66.20

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. H66 Suppurative and unspecified otitis media
Billable codes
36
Subdivisions
6
CC / MCC codes
0 / 0
HCC V28 codes
0
New FY2027
0
Index entries
23

Codes in H66

  1. H66.0
    Acute suppurative otitis media
    Header
  2. H66.00
    Acute suppurative otitis media without spontaneous rupture of ear drum
    Header
  3. H66.001
    Acute suppurative otitis media without spontaneous rupture of ear drum, right ear
    Billable
  4. H66.002
    Acute suppurative otitis media without spontaneous rupture of ear drum, left ear
    Billable
  5. H66.003
    Acute suppurative otitis media without spontaneous rupture of ear drum, bilateral
    Billable
  6. H66.004
    Acute suppurative otitis media without spontaneous rupture of ear drum, recurrent, right ear
    Billable
  7. H66.005
    Acute suppurative otitis media without spontaneous rupture of ear drum, recurrent, left ear
    Billable
  8. H66.006
    Acute suppurative otitis media without spontaneous rupture of ear drum, recurrent, bilateral
    Billable
  9. H66.007
    Acute suppurative otitis media without spontaneous rupture of ear drum, recurrent, unspecified ear
    Billable
  10. H66.009
    Acute suppurative otitis media without spontaneous rupture of ear drum, unspecified ear
    Billable
  11. H66.01
    Acute suppurative otitis media with spontaneous rupture of ear drum
    Header
  12. H66.011
    Acute suppurative otitis media with spontaneous rupture of ear drum, right ear
    Billable
  13. H66.012
    Acute suppurative otitis media with spontaneous rupture of ear drum, left ear
    Billable
  14. H66.013
    Acute suppurative otitis media with spontaneous rupture of ear drum, bilateral
    Billable
  15. H66.014
    Acute suppurative otitis media with spontaneous rupture of ear drum, recurrent, right ear
    Billable
  16. H66.015
    Acute suppurative otitis media with spontaneous rupture of ear drum, recurrent, left ear
    Billable
  17. H66.016
    Acute suppurative otitis media with spontaneous rupture of ear drum, recurrent, bilateral
    Billable
  18. H66.017
    Acute suppurative otitis media with spontaneous rupture of ear drum, recurrent, unspecified ear
    Billable
  19. H66.019
    Acute suppurative otitis media with spontaneous rupture of ear drum, unspecified ear
    Billable
  20. H66.1
    Chronic tubotympanic suppurative otitis media
    Header
    Inclusion terms 2, Use additional code 1

    Inclusion terms

    • Benign chronic suppurative otitis media
    • Chronic tubotympanic disease

    Use additional code

    • code for any associated perforated tympanic membrane (H72.-) H72
  21. H66.10
    Chronic tubotympanic suppurative otitis media, unspecified
    Billable
  22. H66.11
    Chronic tubotympanic suppurative otitis media, right ear
    Billable
  23. H66.12
    Chronic tubotympanic suppurative otitis media, left ear
    Billable
  24. H66.13
    Chronic tubotympanic suppurative otitis media, bilateral
    Billable
  25. H66.2
    Chronic atticoantral suppurative otitis media
    Header
    Inclusion terms 1, Use additional code 1

    Inclusion terms

    • Chronic atticoantral disease

    Use additional code

    • code for any associated perforated tympanic membrane (H72.-) H72
  26. H66.20
    Chronic atticoantral suppurative otitis media, unspecified ear
    Billable
  27. H66.21
    Chronic atticoantral suppurative otitis media, right ear
    Billable
  28. H66.22
    Chronic atticoantral suppurative otitis media, left ear
    Billable
  29. H66.23
    Chronic atticoantral suppurative otitis media, bilateral
    Billable
  30. H66.3
    Other chronic suppurative otitis media
    Header
    Inclusion terms 1, Excludes1 1, Use additional code 1

    Inclusion terms

    • Chronic suppurative otitis media NOS

    Excludes1

    • tuberculous otitis media (A18.6) A18.6

    Use additional code

    • code for any associated perforated tympanic membrane (H72.-) H72
  31. H66.3X
    Other chronic suppurative otitis media
    Header
  32. H66.3X1
    Other chronic suppurative otitis media, right ear
    Billable
  33. H66.3X2
    Other chronic suppurative otitis media, left ear
    Billable
  34. H66.3X3
    Other chronic suppurative otitis media, bilateral
    Billable
  35. H66.3X9
    Other chronic suppurative otitis media, unspecified ear
    Billable
  36. H66.4
    Suppurative otitis media, unspecified
    Header
    Inclusion terms 1, Use additional code 1

    Inclusion terms

    • Purulent otitis media NOS

    Use additional code

    • code for any associated perforated tympanic membrane (H72.-) H72
  37. H66.40
    Suppurative otitis media, unspecified, unspecified ear
    Billable
  38. H66.41
    Suppurative otitis media, unspecified, right ear
    Billable
  39. H66.42
    Suppurative otitis media, unspecified, left ear
    Billable
  40. H66.43
    Suppurative otitis media, unspecified, bilateral
    Billable
  41. H66.9
    Otitis media, unspecified
    Header
    Inclusion terms 3, Use additional code 1

    Inclusion terms

    • Otitis media NOS
    • Acute otitis media NOS
    • Chronic otitis media NOS

    Use additional code

    • code for any associated perforated tympanic membrane (H72.-) H72
  42. H66.90
    Otitis media, unspecified, unspecified ear
    Billable
  43. H66.91
    Otitis media, unspecified, right ear
    Billable
  44. H66.92
    Otitis media, unspecified, left ear
    Billable
  45. H66.93
    Otitis media, unspecified, bilateral
    Billable

Sources of each column.

Instructions

At H66

Includes

  • suppurative and unspecified otitis media with myringitis

Use additional code

  • code to identify:
  • exposure to environmental tobacco smoke (Z77.22) Z77.22
  • exposure to tobacco smoke in the perinatal period (P96.81) P96.81
  • history of tobacco dependence (Z87.891) Z87.891
  • occupational exposure to environmental tobacco smoke (Z57.31) Z57.31
  • tobacco dependence (F17.-) F17
  • tobacco use (Z72.0) Z72.0

Notes that also apply

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

Index entries

  • Otitis (acute) → H66.90
  • Disease, diseasedatticoantral, chronic → H66.20
  • Disease, diseasedpersistent mucosal (middle ear) → H66.20
  • Encephalitis (chronic) (hemorrhagic) (idiopathic) (nonepidemic) (spurious) (subacute)otitic NEC → H66.40 [G05.3]
  • Otitis (acute)media (hemorrhagic) (staphylococcal) (streptococcal) → H66.9-
  • Disease, diseasedatticoantral, chronicright → H66.21
  • Disease, diseasedpersistent mucosal (middle ear)right → H66.21
  • Disease, diseasedatticoantral, chronicleft → H66.22
  • Disease, diseasedpersistent mucosal (middle ear)left → H66.22
  • Otitis (acute)media (hemorrhagic) (staphylococcal) (streptococcal)suppurative → H66.4-
  • Otitis (acute)media (hemorrhagic) (staphylococcal) (streptococcal)acute, subacute → H66.90
  • Otitis (acute)media (hemorrhagic) (staphylococcal) (streptococcal)chronic → H66.90
  • Otitis (acute)media (hemorrhagic) (staphylococcal) (streptococcal)suppurativeacute → H66.00-
  • Disease, diseasedatticoantral, chronicleftwith right → H66.23
  • Disease, diseasedatticoantral, chronicrightwith left → H66.23
  • Disease, diseasedpersistent mucosal (middle ear)leftwith right → H66.23
  • Disease, diseasedpersistent mucosal (middle ear)rightwith left → H66.23
  • Otitis (acute)media (hemorrhagic) (staphylococcal) (streptococcal)suppurativechronic → H66.3
  • Otitis (acute)media (hemorrhagic) (staphylococcal) (streptococcal)suppurativeacuterecurrent → H66.00-
  • Otitis (acute)media (hemorrhagic) (staphylococcal) (streptococcal)suppurativeacutewith rupture of ear drum → H66.01-
  • Otitis (acute)media (hemorrhagic) (staphylococcal) (streptococcal)suppurativechronictubotympanic → H66.1-
  • Otitis (acute)media (hemorrhagic) (staphylococcal) (streptococcal)suppurativechronicatticoantral → H66.2-
  • Otitis (acute)media (hemorrhagic) (staphylococcal) (streptococcal)suppurativeacuterecurrentwith rupture of ear drum → H66.01-

NCHS Alphabetic Index. Index first, then the Tabular List.

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