H70.1 Chronic mastoiditis
Non-billable header ICD10CM Release FY2026
Version history
| Release | Valid from | Valid to | Description | Billable |
|---|---|---|---|---|
| FY2026 | 2025-10-01 | current | Chronic mastoiditis | no |
Related codes in H70
- H70 Mastoiditis and related conditions
- H70.0 Acute mastoiditis
- H70.00 Acute mastoiditis without complications
- H70.001 Acute mastoiditis without complications, right ear
- H70.002 Acute mastoiditis without complications, left ear
- H70.003 Acute mastoiditis without complications, bilateral
- H70.009 Acute mastoiditis without complications, unspecified ear
- H70.01 Subperiosteal abscess of mastoid
- H70.011 Subperiosteal abscess of mastoid, right ear
- H70.012 Subperiosteal abscess of mastoid, left ear
- H70.013 Subperiosteal abscess of mastoid, bilateral
- H70.019 Subperiosteal abscess of mastoid, unspecified ear
- H70.09 Acute mastoiditis with other complications
- H70.091 Acute mastoiditis with other complications, right ear
- H70.092 Acute mastoiditis with other complications, left ear
- H70.093 Acute mastoiditis with other complications, bilateral
- H70.099 Acute mastoiditis with other complications, unspecified ear
- H70.10 Chronic mastoiditis, unspecified ear
- H70.11 Chronic mastoiditis, right ear
- H70.12 Chronic mastoiditis, left ear