Other and unspecified hearing loss (H91)
Clinical Information
Choanal Atresia - A congenital abnormality that is characterized by a blocked CHOANAE, the opening between the nose and the NASOPHARYNX. Blockage can be unilateral or bilateral; bony or membranous.
Choroideremia - An X chromosome-linked abnormality characterized by atrophy of the choroid and degeneration of the retinal pigment epithelium causing night blindness.
Correction of Hearing Impairment - Procedures for correcting HEARING DISORDERS.
Deafness - A general term for the complete loss of the ability to hear from both ears.
Hearing Disorders - Conditions that impair the transmission of auditory impulses and information from the level of the ear to the temporal cortices, including the sensorineural pathways.
Hearing Loss - A general term for the complete or partial loss of the ability to hear from one or both ears.
Hearing Loss, Bilateral - Partial hearing loss in both ears.
Hearing Loss, Central - Hearing loss due to disease of the AUDITORY PATHWAYS (in the CENTRAL NERVOUS SYSTEM) which originate in the COCHLEAR NUCLEI of the PONS and then ascend bilaterally to the MIDBRAIN, the THALAMUS, and then the AUDITORY CORTEX in the TEMPORAL LOBE. Bilateral lesions of the auditory pathways are usually required to cause central hearing loss. Cortical deafness refers to loss of hearing due to bilateral auditory cortex lesions. Unilateral BRAIN STEM lesions involving the cochlear nuclei may result in unilateral hearing loss.
Hearing Loss, Conductive - Hearing loss due to interference with the mechanical reception or amplification of sound to the COCHLEA. The interference is in the outer or middle ear involving the EAR CANAL; TYMPANIC MEMBRANE; or EAR OSSICLES.
Hearing Loss, Functional - Hearing loss without a physical basis. Often observed in patients with psychological or behavioral disorders.
Hearing Loss, High-Frequency - Hearing loss in frequencies above 1000 hertz.
Hearing Loss, Mixed Conductive-Sensorineural - Hearing loss due to damage or impairment of both the conductive elements (HEARING LOSS, CONDUCTIVE) and the sensorineural elements (HEARING LOSS, SENSORINEURAL) of the ear.
Hearing Loss, Noise-Induced - Hearing loss due to exposure to explosive loud noise or chronic exposure to sound level greater than 85 dB. The hearing loss is often in the frequency range 4000-6000 hertz.
Hearing Loss, Sensorineural - Hearing loss resulting from damage to the COCHLEA and the sensorineural elements which lie internally beyond the oval and round windows. These elements include the AUDITORY NERVE and its connections in the BRAINSTEM.
Hearing Loss, Sudden - Sensorineural hearing loss which develops suddenly over a period of hours or a few days. It varies in severity from mild to total deafness. Sudden deafness can be due to head trauma, vascular diseases, infections, or can appear without obvious cause or warning.
Hearing Loss, Unilateral - Partial or complete hearing loss in one ear.
Ototoxicity - Damage to the EAR or its function secondary to exposure to toxic substances such as drugs used in CHEMOTHERAPY; IMMUNOTHERAPY; or RADIATION.
Presbycusis - Gradual bilateral hearing loss associated with aging that is due to progressive degeneration of cochlear structures and central auditory pathways. Hearing loss usually begins with the high frequencies then progresses to sounds of middle and low frequencies.
Prune Belly Syndrome - A syndrome characterized by abdominal wall musculature deficiency, cryptorchism, and urinary tract abnormalities. The syndrome derives its name from its characteristic distended abdomen with wrinkled skin.
Retrocochlear Diseases - Pathological processes involving the VESTIBULOCOCHLEAR NERVE; BRAINSTEM; or CENTRAL NERVOUS SYSTEM. When hearing loss is due to retrocochlear pathology, it is called retrocochlear hearing loss.
Wolfram Syndrome - A hereditary condition characterized by multiple symptoms including those of DIABETES INSIPIDUS; DIABETES MELLITUS; OPTIC ATROPHY; and DEAFNESS. This syndrome is also known as DIDMOAD (first letter of each word) and is usually associated with VASOPRESSIN deficiency. It is caused by mutations in gene WFS1 encoding wolframin, a 100-kDa transmembrane protein.
Instructional Notations
Type 1 Excludes
A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
- abnormal auditory perception H93.2
- hearing loss as classified in H90
- impacted cerumen H61.2
- noise-induced hearing loss H83.3
- psychogenic deafness F44.6
- transient ischemic deafness H93.01
Diseases of the ear and mastoid process (H60–H95)
Other disorders of ear (H90-H94)
H91 Other and unspecified hearing loss
H91.0 Ototoxic hearing loss
- H91.01 Ototoxic hearing loss, right ear
- H91.02 Ototoxic hearing loss, left ear
- H91.03 Ototoxic hearing loss, bilateral
- H91.09 Ototoxic hearing loss, unspecified ear
H91.1 Presbycusis
- H91.10 Presbycusis, unspecified ear
- H91.11 Presbycusis, right ear
- H91.12 Presbycusis, left ear
- H91.13 Presbycusis, bilateral
H91.2 Sudden idiopathic hearing loss
- H91.20 Sudden idiopathic hearing loss, unspecified ear
- H91.21 Sudden idiopathic hearing loss, right ear
- H91.22 Sudden idiopathic hearing loss, left ear
- H91.23 Sudden idiopathic hearing loss, bilateral
- H91.3 Deaf nonspeaking, not elsewhere classified
H91.8 Other specified hearing loss
H91.8X Other specified hearing loss
- H91.8X1 Other specified hearing loss, right ear
- H91.8X2 Other specified hearing loss, left ear
- H91.8X3 Other specified hearing loss, bilateral
- H91.8X9 Other specified hearing loss, unspecified ear
H91.9 Unspecified hearing loss
- H91.90 Unspecified hearing loss, unspecified ear
- H91.91 Unspecified hearing loss, right ear
- H91.92 Unspecified hearing loss, left ear
- H91.93 Unspecified hearing loss, bilateral
Other and unspecified hearing loss (H91)