Diseases of the ear and mastoid process
Diseases of middle ear and mastoid
Mastoiditis and related conditions
2020 ICD-10-CM Diagnosis Code H70.9
2016 2017 2018 2019 2020 Non-Billable/Non-Specific Code
- H70.9 should not be used for reimbursement purposes as there are multiple codes below it that contain a greater level of detail.
- The 2020 edition of ICD-10-CM H70.9 became effective on October 1, 2019.
- This is the American ICD-10-CM version of H70.9 - other international versions of ICD-10 H70.9 may differ.
The following code(s) above H70.9
contain annotation back-references
In this context, annotation back-references refer to codes that contain:
- Applicable To annotations, or
- Code Also annotations, or
- Code First annotations, or
- Excludes1 annotations, or
- Excludes2 annotations, or
- Includes annotations, or
- Note annotations, or
- Use Additional annotations
that may be applicable to H70.9
- Inflammation of the honeycomb-like mastoid bone in the skull just behind the ear. It is usually a complication of otitis media.
- 2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
- 2017 (effective 10/1/2016): No change
- 2018 (effective 10/1/2017): No change
- 2019 (effective 10/1/2018): No change
- 2020 (effective 10/1/2019): No change
- Mastoiditis (coalescent) (hemorrhagic) (suppurative) H70.9-
ICD-10-CM Codes Adjacent To H70.9
Other mastoiditis and related conditions
Cholesteatoma of middle ear
Cholesteatoma of attic
Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.