H75.0

ICD-10Non-billable category

Mastoiditis in infec/parastc diseases classified elsewhere

Official ICD-10-CM descriptor (FY2026)

Mastoiditis in infectious and parasitic diseases classified elsewhere

H75.0 is a category heading, not a billable code. CMS does not accept it on a claim; report one of the more specific codes beneath it.

Excludes1

Not coded here. An Excludes1 code should never be reported at the same time as the code above it.

  • mastoiditis (in):
  • syphilis (A52.77)
  • tuberculosis (A18.03)

ICD-10-CM FY2026 defines 4 codes beneath H75.0. See the ICD-10-CM index for what this site publishes.

Related codes in H75

Where this code sits

Parent code
H75

Krasyn AI Coder

Get code suggestions automatically as you type notes. Free for 50 analyses.

Install for Chrome — free

Source

ICD-10-CM FY2026. Centers for Medicare & Medicaid Services (CMS) / National Center for Health Statistics (NCHS), “2026 ICD-10-CM Code Descriptions in Tabular Order” (icd10cm_order_2026.txt). Download the original file from cms.gov. Public domain (US Government work). Descriptors, billable flags and instructional notes on this page are reproduced from that file without modification. Krasyn adds no clinical guidance.

Get codes automatically as you write notes. Krasyn AI Coder for Chrome — free for 50 analyses.Install free →