What H91 covers · when clinicians use it
ICD-10 code H91 identifies Other and unspecified hearing loss in the U.S. ICD-10-CM clinical and billing record set. It sits within the Ear and Mastoid Process chapter (H60–H95), the section that groups related diagnoses so providers, payers, and public-health agencies report them consistently. Clinicians and medical coders apply H91 when an encounter's findings match the Other and unspecified hearing loss description, attaching it to the patient record so downstream insurance claims, payer audits, quality reporting, and epidemiological surveillance all reference the same standardized diagnosis. The ICD-10-CM is maintained by the Centers for Medicare & Medicaid Services and the CDC's National Center for Health Statistics, with an updated official code set released each U.S. fiscal year — always verify H91 against the current CMS/CDC release and your payer's documentation guidance before final use. This page summarizes documentation context for H91 and is a coding reference, not clinical, diagnostic, or billing advice.
H91 refers to Other and unspecified hearing loss, encompassing a wide range of ear-related conditions, including hearing loss (both conductive and sensorineural), ear pain, fluid accumulation, post-surgical issues, and complications arising from other diseases or procedures affecting the ear and mastoid.
Symptoms
- Hearing difficulty – A hallmark of H90 and H91 hearing loss
- Ear pain (otalgia) – Especially relevant for H92
- Ear fullness or fluid – Linked to middle ear effusion (H92)
- Ringing or buzzing (tinnitus) – Often associated with H93 and hearing loss codes
- Vertigo or imbalance – Occasionally present in H93 and post-op complications (H95)
- Post-surgical discharge or inflammation – Categorized under H95
- Ear dysfunction due to systemic illness – Captured by H94
Diagnosis
Diagnosis of Other and unspecified hearing loss involves audiometry, tympanometry, otoscopic examination, imaging such as CT/MRI (for structural or surgical complications), and sometimes neurological or systemic evaluations. Fluid testing or ear culture may be required in effusion or post-op cases.
ICD10 Code Usage
ICD10 code H91 is utilized by audiologists, ENT specialists, general practitioners, and surgical teams. It supports the diagnosis and treatment of auditory deficits, surgical documentation, disability claims, and post-procedural care planning.
Related Codes
- H90 – Conductive and sensorineural hearing loss
- H92 – Otalgia and effusion of ear
- H93 – Other disorders of ear, not elsewhere classified
- H94 – Other disorders of ear in diseases classified elsewhere
- H95 – Intraoperative and postprocedural complications and disorders of ear and mastoid process, not elsewhere classified
FAQs
Q1: What is ICD10 code H91?
A: It refers to Other and unspecified hearing loss, including auditory dysfunction, ear pain, fluid buildup, and surgical or disease-related complications of the ear and mastoid.
Q2: What’s the difference between H90 and H91?
A: H90 specifies the type of hearing loss (conductive, sensorineural, or mixed), while H91 includes unspecified and special types like sudden idiopathic hearing loss.
Q3: Are these conditions permanent?
A: Some types of hearing loss and complications are reversible with treatment, while others may lead to permanent changes without timely intervention.
Q4: How are they treated?
A: Management ranges from medications (antibiotics, steroids), hearing aids, and pressure equalization tubes to surgical correction or cochlear implants.
Q5: Who manages these conditions?
A: ENT specialists, audiologists, surgeons, and primary care providers collaborate to diagnose and treat these ear conditions.
Conclusion
ICD10 code H91 ensures precise classification and medical tracking of Other and unspecified hearing loss, supporting effective diagnosis, hearing preservation, and the management of both routine and complex ear-related health concerns.