2026 ICD-10-CM Diagnosis Code H66.23Chronic atticoantral suppurative otitis media, bilateral
ICD-10-CM Codes›H60–H95›H65-H75›H66
- Billable — Valid for Submission
- Chronic Condition
H66.23 is a billable ICD-10-CM diagnosis code for chronic atticoantral suppurative otitis media, bilateral. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 152 through 153. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Otitis media.
This medical diagnosis code is frequently used in Pediatrics medical specialties to designate conditions such chronic atticoantral suppurative otitis media.
Code Identity
Code Classification
Approximate SynonymsGuidance
Alternate terms and clinical phrases that map to this code.
- Attic perforation of tympanic membrane
- Bilateral chronic atticoantral suppurative otitis media
- Bilateral chronic suppurative otitis media of middle ears
- Bilateral chronic tympanitis
- Bilateral perforation of pars flaccida of tympanic membranes
- Bilateral perforation of tympanic membranes
- Bilateral suppurative otitis media
- Chronic atticoantral suppurative otitis media
- Chronic atticoantral suppurative otitis media of left middle ear
- Chronic atticoantral suppurative otitis media of right middle ear
- Chronic left myringitis
- Chronic right myringitis
- Chronic suppurative otitis media of left middle ear
- Chronic suppurative otitis media of right middle ear
- Chronic tympanitis
- Left suppurative otitis media
- Perforation of pars flaccida of left tympanic membrane
- Perforation of pars flaccida of right tympanic membrane
- Right suppurative otitis media
Index to Diseases and InjuriesGuidance
Alphabetical index entries that point to this code.
- Disease, diseased - See Also: Syndrome;
External Cause of Injuries IndexGuidance
References for this code in the External Cause of Injuries Index.
- Disease, diseased
- atticoantral, chronic
- left
- with right
- Disease, diseased
- atticoantral, chronic
- right
- with left
- Disease, diseased
- persistent mucosal (middle ear)
- left
- with right
- Disease, diseased
- persistent mucosal (middle ear)
- right
- with left
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
Patient EducationClinical
Ear Infections
Ear infections are the most common reason parents bring their child to a doctor. Three out of four children will have at least one ear infection by their third birthday. Adults can also get ear infections, but they are less common.
Read the full article at MedlinePlus
Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.
Convert H66.23 to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About H66.23Overview
Is H66.23 (Chronic atticoantral suppurative otitis media) a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report chronic atticoantral suppurative otitis media, bilateral on HIPAA-covered claims from October 1, 2025 through September 30, 2026.
What MS-DRG does H66.23 group to?
When chronic atticoantral suppurative otitis media, bilateral is the principal diagnosis on an inpatient stay, it groups to MS-DRG 152, 153, with relative weights from 0.7382 to 1.1822 depending on complications. Higher weights mean higher Medicare reimbursement.
What is the ICD-9 equivalent of H66.23?
Under the General Equivalence Mappings, chronic atticoantral suppurative otitis media, bilateral converts to ICD-9-CM 382.2 (chr atticoantral sup OM). The mapping is approximate, so confirm the match fits the documentation.
Footnotes
[1] Chronic - a chronic condition code indicates a condition lasting 12 months or longer and its effect on the patient based on one or both of the following criteria:
- The condition results in the need for ongoing intervention with medical products,treatment, services, and special equipment
- The condition places limitations on self-care, independent living, and social interactions.
