2021 ICD-10-CM Codes for Mastoiditis and related conditions (H70)

ICD-10 Index
- Diseases of the ear and mastoid process (H60–H95)
  - Diseases of middle ear and mastoid (H65-H75)
    - - H70 - Mastoiditis and related conditions NON-BILLABLE CODE
      - H70.0 - Acute mastoiditis NON-BILLABLE CODE
      - H70.00 - Acute mastoiditis without complications NON-BILLABLE CODE
      - H70.001 - Acute mastoiditis without complications, right ear BILLABLE CODE
      - H70.002 - Acute mastoiditis without complications, left ear BILLABLE CODE
      - H70.003 - Acute mastoiditis without complications, bilateral BILLABLE CODE
      - H70.009 - Acute mastoiditis without complications, unspecified ear BILLABLE CODE
      - H70.01 - Subperiosteal abscess of mastoid NON-BILLABLE CODE
      - H70.011 - Subperiosteal abscess of mastoid, right ear BILLABLE CODE
      - H70.012 - Subperiosteal abscess of mastoid, left ear BILLABLE CODE
      - H70.013 - Subperiosteal abscess of mastoid, bilateral BILLABLE CODE
      - H70.019 - Subperiosteal abscess of mastoid, unspecified ear BILLABLE CODE
      - H70.09 - Acute mastoiditis with other complications NON-BILLABLE CODE
      - H70.091 - Acute mastoiditis with other complications, right ear BILLABLE CODE
      - H70.092 - Acute mastoiditis with other complications, left ear BILLABLE CODE
      - H70.093 - Acute mastoiditis with other complications, bilateral BILLABLE CODE
      - H70.099 - Acute mastoiditis with other complications, unspecified ear BILLABLE CODE
      - H70.1 - Chronic mastoiditis NON-BILLABLE CODE
      - H70.10 - Chronic mastoiditis, unspecified ear BILLABLE CODE
      - H70.11 - Chronic mastoiditis, right ear BILLABLE CODE
      - H70.12 - Chronic mastoiditis, left ear BILLABLE CODE
      - H70.13 - Chronic mastoiditis, bilateral BILLABLE CODE
      - H70.2 - Petrositis NON-BILLABLE CODE
      - H70.20 - Unspecified petrositis NON-BILLABLE CODE
      - H70.201 - Unspecified petrositis, right ear BILLABLE CODE
      - H70.202 - Unspecified petrositis, left ear BILLABLE CODE
      - H70.203 - Unspecified petrositis, bilateral BILLABLE CODE
      - H70.209 - Unspecified petrositis, unspecified ear BILLABLE CODE
      - H70.21 - Acute petrositis NON-BILLABLE CODE
      - H70.211 - Acute petrositis, right ear BILLABLE CODE
      - H70.212 - Acute petrositis, left ear BILLABLE CODE
      - H70.213 - Acute petrositis, bilateral BILLABLE CODE
      - H70.219 - Acute petrositis, unspecified ear BILLABLE CODE
      - H70.22 - Chronic petrositis NON-BILLABLE CODE
      - H70.221 - Chronic petrositis, right ear BILLABLE CODE
      - H70.222 - Chronic petrositis, left ear BILLABLE CODE
      - H70.223 - Chronic petrositis, bilateral BILLABLE CODE
      - H70.229 - Chronic petrositis, unspecified ear BILLABLE CODE
      - H70.8 - Other mastoiditis and related conditions NON-BILLABLE CODE
      - H70.81 - Postauricular fistula NON-BILLABLE CODE
      - H70.811 - Postauricular fistula, right ear BILLABLE CODE
      - H70.812 - Postauricular fistula, left ear BILLABLE CODE
      - H70.813 - Postauricular fistula, bilateral BILLABLE CODE
      - H70.819 - Postauricular fistula, unspecified ear BILLABLE CODE
      - H70.89 - Other mastoiditis and related conditions NON-BILLABLE CODE
      - H70.891 - Other mastoiditis and related conditions, right ear BILLABLE CODE
      - H70.892 - Other mastoiditis and related conditions, left ear BILLABLE CODE
      - H70.893 - Other mastoiditis and related conditions, bilateral BILLABLE CODE
      - H70.899 - Other mastoiditis and related conditions, unspecified ear BILLABLE CODE
      - H70.9 - Unspecified mastoiditis NON-BILLABLE CODE
      - H70.90 - Unspecified mastoiditis, unspecified ear BILLABLE CODE
      - H70.91 - Unspecified mastoiditis, right ear BILLABLE CODE
      - H70.92 - Unspecified mastoiditis, left ear BILLABLE CODE
      - H70.93 - Unspecified mastoiditis, bilateral BILLABLE CODE

ICD-10 Index

Diseases of the ear and mastoid process (H60–H95)

Diseases of middle ear and mastoid (H65-H75)

Mastoiditis and related conditions (H70)