H74.3 ICD-10-CA code: Other acquired abnormalities of ear ossicles
H74.3 is the ICD-10-CA code for “Other acquired abnormalities of ear ossicles” in CIHI’s FY 2026–2027 release, in effect from Apr 1, 2026.
Official description
H74.3Other acquired abnormalities of ear ossicles
Short description: Oth acquired abnormalities ear ossicles
ICD-10-CA · Canada · Also written H743
Index terms
Entries in CIHI’s alphabetical index that lead to H74.3. Searching the index by the condition the note names is how coders reach this code.
- Fixation, stapes
- Caries, ossicles, ear
- Loss (of), ossicles, ear (partial)
- Necrosis, necrotic (ischemic), ossicles, ear
- Ankylosis (fibrous) (osseous) (joint), ear ossicles
- Impaired, impairment (function), mobility, ear ossicles
- Absence (organ or part) (complete or partial), incus (acquired)
- Abnormal, abnormality, abnormalities, ear ossicles, acquired NEC
- Ankylosis (fibrous) (osseous) (joint), incudostapedial (infectional)
Notes for H74.3
As CIHI prints them, with any note H74.3 takes from the headings above it.
Includes
- Ankylosis, Partial loss of ear ossicles
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 H74.3 sits
- 1ChapterChapter 8: Diseases of the ear and mastoid process (H60-H95)
- 2Block H65-H75Diseases of middle ear and mastoid
- 3Category H74Other disorders of middle ear and mastoid
- 4Valid code H74.3Other acquired abnormalities of ear ossicles
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 H74.3 mean?
H74.3 is the ICD-10-CA code for “Other acquired abnormalities of ear ossicles” in CIHI’s ICD-10-CA FY 2026–2027 release.
Where is H74.3 in ICD-10-CA?
H74.3 sits under H74 Other disorders of middle ear and mastoid, 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 H74.3?
ICD-10-CA lists Includes, Excludes notes for H74.3, 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.