H75.0 ICD-10-CA code: Mastoiditis in infectious and parasitic diseases classified elsewhere
H75.0 is the ICD-10-CA code for “Mastoiditis in infectious and parasitic diseases classified elsewhere” in CIHI’s FY 2026–2027 release, in effect from Apr 1, 2026.
Official description
H75.0Mastoiditis in infectious and parasitic diseases classified elsewhere
Short description: Mastoiditis in infect & parasit dis cl/e
ICD-10-CA · Canada · Also written H750
Notes for H75.0
As CIHI prints them, with any note H75.0 takes from the headings above it.
Includes
- Tuberculous mastoiditis (A18.0†)
Excludes
Conditions classified elsewhere.
- Certain:• conditions originating in the perinatal period (P00-P96)• infectious and parasitic diseases (A00-B99)complications of pregnancy, childbirth and the puerperium (O00-O99)congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)endocrine, nutritional and metabolic diseases (E00-E90)injury, poisoning and certain other consequences of external causes (S00-T98)neoplasms (C00-D48)symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99)From Chapter 8: Diseases of the ear and mastoid process (H60-H95)
Where H75.0 sits
- 1ChapterChapter 8: Diseases of the ear and mastoid process (H60-H95)
- 2Block H65-H75Diseases of middle ear and mastoid
- 3Category H75Other disorders of middle ear and mastoid in diseases classified elsewhere
- 4Valid code H75.0Mastoiditis in infectious and parasitic diseases classified elsewhere
Source and release
- Data release
- ICD-10-CA · FY 2026–2027
- Effective date
- Apr 1, 2026
- Publisher
- CIHI
This page is built from the ICD-10-CA catalog that Vero Codes reads when it suggests codes: Canadian Institute for Health Information’s FY 2026–2027 release, imported from the publisher’s file and checked against it. The description, notes and structured data come from the same record.
Frequently asked questions
What does ICD-10-CA code H75.0 mean?
H75.0 is the ICD-10-CA code for “Mastoiditis in infectious and parasitic diseases classified elsewhere” in CIHI’s ICD-10-CA FY 2026–2027 release.
Where is H75.0 in ICD-10-CA?
H75.0 sits under H75 Other disorders of middle ear and mastoid in diseases classified elsewhere, within H65-H75 Diseases of middle ear and mastoid, within Chapter 8: Diseases of the ear and mastoid process (H60-H95).
What coding notes apply to H75.0?
ICD-10-CA lists Includes, Excludes notes for H75.0, including those from the headings it sits under. They are listed on this page with where each one comes from.
Which ICD-10-CA release does this page use?
It uses CIHI’s FY 2026–2027 release, in effect from Apr 1, 2026 to Mar 31, 2027. It is a reference: confirm the code against the current list and the payer’s rules before you submit it.