H70.8 – Other mastoiditis and related conditions
ICD-10-CM 2027 diagnosis code · Diseases of middle ear and mastoid
ICD-10-CM code
H70.8
- Code
H70.8(claims format:H708)- Description
- Other mastoiditis and related conditions
- Billable
- No – use a more specific code below
- Valid for
- Dates of service October 1, 2026 – September 30, 2027 (FY2027)
- Chapter
- 8. Diseases of the ear and mastoid process (H60-H95)
- Block
- H65-H75 Diseases of middle ear and mastoid
- Parent codes
- H70
Billable codes under H70.8
H70.8 is a header code and cannot be used on claims. Choose the most specific code:
- H70.81 – Postauricular fistulaHeader (more codes below)
- H70.89 – Other mastoiditis and related conditionsHeader (more codes below)
Notes for H70.8
Related codes in H70
Frequently asked questions
What is ICD-10 code H70.8?
H70.8 is the ICD-10-CM code for other mastoiditis and related conditions, in the block H65-H75 (Diseases of middle ear and mastoid).
Is H70.8 a billable code?
No. H70.8 is a header code with more specific child codes; report one of the billable codes listed above.
What category does H70.8 belong to?
It belongs to category H70 – Mastoiditis and related conditions.
Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.