All ICD10 Codes

H70

Non-Billable
ChapterH60–H95
Rankcategory
Official Description

Mastoiditis and related conditions

Use a more specific code (0 billable, 5 non-billable)
H70.0Acute mastoiditishas subcodesH70.1Chronic mastoiditishas subcodesH70.2Petrositishas subcodesH70.8Other mastoiditis and related conditionshas subcodesH70.9Unspecified mastoiditishas subcodes
Metadata & Insights
  • •Non-billable category (requires more specific sub-code).
  • •Chapter 8: Diseases of the Ear and Mastoid Process (H60-H95).

CH8 Parent Instructions

Excludes2(Not included here. Code separately if applicable.)
  • certain conditions originating in the perinatal period (P04-P96)
  • certain infectious and parasitic diseases (A00-B99)
  • complications of pregnancy, childbirth and the puerperium (O00-O9A)
  • congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)
  • endocrine, nutritional and metabolic diseases (E00-E88)
  • injury, poisoning and certain other consequences of external causes (S00-T88)
  • neoplasms (C00-D49)
  • symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)

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 conditionsNot billable
H70.0Acute mastoiditisSubcodes
H70.1Chronic mastoiditisSubcodes
H70.2PetrositisSubcodes
H70.8Other mastoiditis and related conditionsSubcodes
H70.9Unspecified mastoiditisSubcodes

Applicable Ancestor Context

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

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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