H66.2 – Chronic atticoantral suppurative otitis media

ICD-10-CM 2027 diagnosis code · Diseases of middle ear and mastoid

Non-billable header

ICD-10-CM code H66.2

Code: H66.2 (claims format: H662)
Description: Chronic atticoantral suppurative otitis media
Billable: No – use a more specific code below
Valid for: Dates of service October 1, 2026 – September 30, 2027 (FY2027)
Chapter: 8. Diseases of the ear and mastoid process (H60-H95)
Block: H65-H75 Diseases of middle ear and mastoid
Parent codes: H66

Billable codes under H66.2

H66.2 is a header code and cannot be used on claims. Choose the most specific code:

Notes for H66.2

Applicable to:

Chronic atticoantral disease

Use additional code:

code for any associated perforated tympanic membrane (H72.-)

Notes inherited from parent codes

Instructional notes at a category or block level apply to every code below it.

H66 – Suppurative and unspecified otitis media

Includes:

suppurative and unspecified otitis media with myringitis

Use additional code:

code to identify:
exposure to environmental tobacco smoke (Z77.22)
exposure to tobacco smoke in the perinatal period (P96.81)
history of tobacco dependence (Z87.891)
occupational exposure to environmental tobacco smoke (Z57.31)
tobacco dependence (F17.-)
tobacco use (Z72.0)

Index terms for H66.2

Entries in the ICD-10-CM alphabetic index that lead to this code:

Otitis, media, suppurative, chronic, atticoantral

Related codes in H66

Frequently asked questions

What is ICD-10 code H66.2?

H66.2 is the ICD-10-CM code for chronic atticoantral suppurative otitis media, in the block H65-H75 (Diseases of middle ear and mastoid).

Is H66.2 a billable code?

No. H66.2 is a header code with more specific child codes; report one of the billable codes listed above.

What category does H66.2 belong to?

It belongs to category H66 – Suppurative and unspecified otitis media.

Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.