H66.9
Non-billableOtitis media, unspecified
Otitis media, unspecified
This is a header/category code. For billing purposes, use a more specific child code from the list below.
Coding Notes
Inclusion Terms
Alternative clinical terms for this condition
- Otitis media NOS
- Acute otitis media NOS
- Chronic otitis media NOS
Includes
Conditions included under this code
- suppurative and unspecified otitis media with myringitis
Excludes 2
Conditions not included here, but the patient may have both
- •certain conditions originating in the perinatal periodP04-P96
- •certain infectious and parasitic diseasesA00-B99
- •complications of pregnancy, childbirth and the puerperiumO9A)O00
- •congenital malformations, deformations and chromosomal abnormalitiesQ00-Q99
- •endocrine, nutritional and metabolic diseasesE00-E88
- •injury, poisoning and certain other consequences of external causesS00-T88
- •neoplasmsC00-D49
- •symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classifiedR00-R94
Use Additional Code
Additional codes that should follow this code
- code to identify:
- •exposure to environmental tobacco smokeZ77.22
- •exposure to tobacco smoke in the perinatal periodP96.81
- •history of tobacco dependenceZ87.891
- •occupational exposure to environmental tobacco smokeZ57.31
- •tobacco dependenceF17
- •tobacco useZ72.0
- •code for any associated perforated tympanic membraneH72
Child Codes (4)
Related Codes(5)
ICD-11 Equivalents(1)
ICD-11 Equivalents
View full mappingCorresponding ICD-11 codes from the WHO crosswalk mapping
Also Known As / Clinical Terms(41)
UMLS
- AOM - Acute otitis mediaC0271429
- Acute middle ear infectionC0271429
- Acute otitis mediaC0271429
- Acute otitis media (disorder)C0271429
- Acute otitis media NOSC0271429
- Otitis media acuteC0271429
- Otitis media acute NOSC0271429
- acute media otitisC0271429
- acute otitis mediaC0271429
- otitis media acuteC0271429
- Catarrh of middle earC0029882
- Inflammation, Middle EarC0029882
- Middle Ear InflammationC0029882
- Middle ear infectionC0029882
- Middle ear inflammationC0029882
- OM - Otitis mediaC0029882
- Otitis MediaC0029882
- Otitis mediaC0029882
- Otitis media (disorder)C0029882
- Otitis media NOSC0029882
- Otitis media, unspecifiedC0029882
- Otitis media, unspecified, unspecified earC0029882
- Unspecified otitis mediaC0029882
- media otitisC0029882
- medias otitisC0029882
- middle ear infectionC0029882
- otitis mediaC0029882
- otitis media nosC0029882
- otitis or otitis mediaC0029882
- Chronic infections of the middle earC0271441
- Chronic middle ear infectionC0271441
- Chronic otitis mediaC0271441
- Chronic otitis media (disorder)C0271441
- Chronic otitis media NOSC0271441
- Otitis media chronicC0271441
- Otitis media chronic NOSC0271441
- Otitis media, chronicC0271441
- chronic media otitisC0271441
- chronic otitis mediaC0271441
- chronic otitis media nosC0271441
- otitis media chronicC0271441
Frequently Asked Questions
What is the ICD-10 code for otitis media, unspecified?
The ICD-10-CM code for otitis media, unspecified is H66.9. The full clinical description is "Otitis media, unspecified". H66.9 is a non-billable header code. Use a more specific child code for billing purposes.
What does ICD-10 code H66.9 mean?
ICD-10-CM code H66.9 represents “Otitis media, unspecified”. It is classified under Chapter 8: Diseases of the Ear and Mastoid Process and is a non-billable header code. Use a more specific child code for billing purposes.
Is H66.9 a billable code?
No, H66.9 is a non-billable header code. You need to use one of its more specific child codes for billing. There are 4 child codes under H66.9.
What chapter is H66.9 in?
H66.9 is in Chapter 8: Diseases of the Ear and Mastoid Process (codes H60-H95).
What are the subcategories under H66.9?
H66.9 has 4 child codes, including: H66.90 (Otitis media, unspecified, unspecified ear), H66.91 (Otitis media, unspecified, right ear), H66.92 (Otitis media, unspecified, left ear), H66.93 (Otitis media, unspecified, bilateral).
Are additional codes required with H66.9?
Yes, when using H66.9, also report: ; 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); any associated perforated tympanic membrane (H72.-).
What are the UMLS CUIs for H66.9?
H66.9 is linked to 3 UMLS Concept Unique Identifiers: C0271429, C0029882, C0271441. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.
How does H66.9 relate to ICF functioning codes?
ICF (International Classification of Functioning, Disability and Health) codes describe how conditions like otitis media, unspecified affect a person's functioning — body functions, activities, participation, and environmental factors. AutoICD provides ICF Core Sets for 12+ conditions and can map clinical text to ICF categories automatically. Browse the ICF directory to explore functioning codes.
What is the ICD-11 equivalent of H66.9?
H66.9 maps to the ICD-11 code: AB0Z (Otitis media, unspecified).
Automate ICD-10 Coding With AI
Send clinical text to the AutoICD API and get back structured ICD-10 codes with confidence scores. Integrates into any EHR or billing system in minutes.
Includes SNOMED Clinical Terms® (SNOMED CT®) used by permission of SNOMED International. Includes content from the UMLS Metathesaurus, courtesy of the U.S. National Library of Medicine.