H70.1 - Chronic mastoiditis

  • Applicable to Chronic mastoiditis
  • The 2025 edition of ICD10-CM H70.1 became effective on October 1, 2024.
  • This is the American ICD10-CM version of H70.1 - other international versions of ICD10 H70.1 may differ.
  • H70.1 is a Non-Billable / Non-Specific ICD10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
  • H70.1 Code should not be used for billing or reimbursement purposes as there are multiple ICD-10 CM codes below it that contain a greater level of detail.
  • H70.1 - Chronic mastoiditis
    • H70.1 - Chronic mastoiditis
    • H70.10 - Chronic mastoiditis, unspecified ear
    • H70.11 - Chronic mastoiditis, right ear
    • H70.12 - Chronic mastoiditis, left ear
    • H70.13 - Chronic mastoiditis, bilateral

 Inclusion Term

  • Caries of mastoid
  • Fistula of mastoid

Type 1 Excludes

  • tuberculous mastoiditis (A18.03)

The following codes above H70.1 contain annotation back-references that may be applicable to H70.1:

Chapter: H60-H95 Diseases of the ear and mastoid process

Section: H65-H75 Diseases of middle ear and mastoid

Category: H70 Mastoiditis and related conditions

  
Non-Billable/Non-Specific Code

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