Human Phenotype Ontology

Last uploaded: October 9, 2018
Preferred Name

Hearing impairment

Synonyms

Congenital deafness

Hearing impairment

Deafness

Hypoacusis

Congenital hearing loss

Hearing loss

Hearing defect

Definitions

A decreased magnitude of the sensory perception of sound. Hearing loss can be categorized by which part of the auditory system is damaged, as conductive hearing loss, sensorineural hearing loss, and mixed hearing loss. Another axis of classification uses the degree of hearing impairment. The degree of hearing loss is computed by using a three frequency average taken at 500 Hz, 1,000 Hz and 2,000 Hz. The average of these three frequencies is called the Pure Tone Average (PTA). 0-20 dB is considered normal, 21-40 dB mild loss, 41-60 dB moderate loss, 61-70 dB moderately severe loss,71-90 dB severe loss, and greater than 90 dB profound loss. Note that the word deafness is occasionally used to describe partial hearing loss. The World Health Organization uses the word deafness to refer to complete loss of the ability to hear, and hearing impairment to refer to any degree of reduced hearing.

ID

http://purl.obolibrary.org/obo/HP_0000365

comment

Hearing loss can be categorized by which part of the auditory system is damaged, as conductive hearing loss, sensorineural hearing loss, and mixed hearing loss. Another axis of classification uses the degree of hearing impairment. The degree of hearing loss is computed by using a three frequency average taken at 500 Hz, 1,000 Hz and 2,000 Hz. The average of these three frequencies is called the Pure Tone Average (PTA). 0-20 dB is considered normal, 21-40 dB mild loss, 41-60 dB moderate loss, 61-70 dB moderately severe loss,71-90 dB severe loss, and greater than 90 dB profound loss. Note that the word deafness is occasionally used to describe partial hearing loss. The World Health Organization uses the word deafness to refer to complete loss of the ability to hear, and hearing impairment to refer to any degree of reduced hearing.

database_cross_reference

UMLS:C1384666

SNOMEDCT_US:95828007

SNOMEDCT_US:103276001

SNOMEDCT_US:15188001

MSH:D003638

MSH:D034381

SNOMEDCT_US:343087000

UMLS:C0339789

Fyler:4868

UMLS:C0018772

UMLS:C0011053

definition

A decreased magnitude of the sensory perception of sound.

has_alternative_id

HP:0001728

HP:0001754

HP:0008560

HP:0000404

HP:0008563

HP:0001729

has_exact_synonym

Congenital deafness

Hearing impairment

Deafness

Congenital hearing loss

Hearing defect

has_obo_namespace

human_phenotype

has_related_synonym

Hypoacusis

Hearing loss

id

HP:0000365

label

Hearing impairment

notation

HP:0000365

prefLabel

Hearing impairment

treeView

http://purl.obolibrary.org/obo/HP_0000364

subClassOf

http://purl.obolibrary.org/obo/HP_0000364

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