All ICD10 Codes

H70.9

Non-Billable
ChapterH60–H95
Ranksubcategory
Official Description

Unspecified mastoiditis

Use a more specific code (4 billable)
H70.90Unspecified mastoiditis, unspecified earH70.91Unspecified mastoiditis, right earH70.92Unspecified mastoiditis, left earH70.93Unspecified mastoiditis, bilateral
Metadata & Insights
  • •Non-billable category (requires more specific sub-code).
  • •Chapter 8: Diseases of the Ear and Mastoid Process (H60-H95).
General instructions are available for the parent sections:
View CH8 Notes

Clinical Hierarchy

BillableHas subcodes
CH8Diseases of the ear and mastoid process (H60-H95)
H65-H75Diseases of middle ear and mastoid (H65-H75)
H70Mastoiditis and related conditions
H70.9Unspecified mastoiditisNot billable
H70.90Unspecified mastoiditis, unspecified earBillable
H70.91Unspecified mastoiditis, right earBillable
H70.92Unspecified mastoiditis, left earBillable
H70.93Unspecified mastoiditis, bilateralBillable

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to H70.9:

chapterCH8
Diseases of the ear and mastoid process (H60-H95)
View context instructions

MS-DRG Classification

2026

No direct MS-DRG triggers identified.

Cross Reference

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