H66.2 ICD-10-CA code: Chronic atticoantral suppurative otitis media
H66.2 is the ICD-10-CA code for “Chronic atticoantral suppurative otitis media” in CIHI’s FY 2026–2027 release, in effect from Apr 1, 2026.
Official description
H66.2Chronic atticoantral suppurative otitis media
Short description: Chr atticoantral suppuratve otitis media
ICD-10-CA · Canada · Also written H662
Index terms
Entries in CIHI’s alphabetical index that lead to H66.2. Searching the index by the condition the note names is how coders reach this code.
- Disease, diseased, atticoantral, chronic
- Otitis, media, chronic, suppurative, atticoantral
Notes for H66.2
As CIHI prints them, with any note H66.2 takes from the headings above it.
Includes
- Chronic atticoantral disease
- With myringitisFrom H66 Suppurative and unspecified otitis media
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)
Note
- Use additional code to identify presence of perforated tympanic membrane(H72.-)From H66 Suppurative and unspecified otitis media
Where H66.2 sits
- 1ChapterChapter 8: Diseases of the ear and mastoid process (H60-H95)
- 2Block H65-H75Diseases of middle ear and mastoid
- 3Category H66Suppurative and unspecified otitis media
- 4Valid code H66.2Chronic atticoantral suppurative otitis media
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 H66.2 mean?
H66.2 is the ICD-10-CA code for “Chronic atticoantral suppurative otitis media” in CIHI’s ICD-10-CA FY 2026–2027 release.
Where is H66.2 in ICD-10-CA?
H66.2 sits under H66 Suppurative and unspecified otitis media, 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 H66.2?
ICD-10-CA lists Includes, Note, Excludes notes for H66.2, 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.