ICD-10-CM Billable Code

H74.313

Ankylosis of ear ossicles, bilateral

Clinical Classification Guidelines

Medical Intelligence & Overview

Bilateral ankylosis of the ear ossicles is a condition characterized by the fusion or stiffening of the tiny bones in the middle ear on both sides. These ossicles—malleus, incus, and stapes—are essential for transmitting sound vibrations from the eardrum to the inner ear. When their movement is restricted due to ankylosis, it can lead to hearing difficulties. This condition is classified under ICD-10 code H74.313 and primarily affects individuals experiencing complex ear-related issues that may impact hearing ability and quality of life.

Causes & Symptoms

Clinical Causes: Chronic otitis media (long-term middle ear infections) Trauma or injury to the ear Congenital abnormalities present at birth Previous ear surgeries that result in scar tissue formation Infections leading to ossicular chain fixation Otospongiosis (abnormal bone growth around the ossicles)

Key Symptoms: Hearing loss in one or both ears Sense of ringing (tinnitus) Ear fullness or pressure sensations Decreased ability to perceive sounds clearly Possible balance issues if the inner ear is affected Discomfort or ear pain in some cases

Diagnostic & Treatment

Diagnosis Path: Diagnosis involves a combination of clinical evaluation and specialized tests. A healthcare provider may perform:

Treatment Protocols: Treatment options depend on the severity of ankylosis and the degree of hearing impairment. Approaches can include:

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.

Clinical Advice & FAQs

Billing Guidance

Is H74.313 a billable ICD-10 code?
Yes, H74.313 is a specific, billable code that can be used to indicate a diagnosis for reimbursement purposes.

Documentation

How do I report H74.313?
Clinical documentation must specify the nature of Ankylosis of ear ossicles, bilateral and any associated comorbidities for accurate reporting.

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