# ICD-11 Classification of Hearing Impairment

Canonical: https://pinnacleblooms.org/ask/what-is-the-icd-11-classification-for-hearing-impairment
Publisher: Pinnacle Blooms Network / Bharath Healthcare Laboratories Private Limited

In ICD-11, hearing impairment sits in Chapter 08 (Diseases of the ear and mastoid process) under the hearing impairment and deafness block, principally AB50 (conductive, sensorineural or mixed) and AB51. Type, laterality and WHO severity grades are specified; functional impact is captured via the ICF.

*The first question a referring clinician often asks is simply: where does hearing impairment sit in ICD-11?*

## In short
In **ICD-11**, hearing impairment is coded primarily within **Chapter 08 — Diseases of the ear and mastoid process**, under the block **Hearing impairment and deafness**. The two principal entities are **AB50 Conductive, sensorineural or mixed hearing impairment** and **AB51 Other specified hearing impairment**, with laterality (unilateral/bilateral) and severity recorded through ICD-11 stem-and-extension coding. WHO grades severity (mild, moderate, severe, profound, complete) by better-ear hearing threshold, aligning with the *World Report on Hearing*. Functional impact is captured separately via the ICF, not the diagnostic code itself.

## The classification, in detail
- **Chapter 08 (Diseases of the ear and mastoid process)** houses the diagnostic codes for hearing loss by mechanism — conductive, sensorineural, or mixed.
- **Type** is specified (e.g. sensorineural vs conductive), and **laterality** is added as an extension code where the platform supports stem-and-extension entry.
- **Severity** follows WHO audiometric grades based on the better-ear average threshold; "deafness" denotes profound or complete loss.
- **Aetiology** (e.g. congenital, ototoxic, infective, age-related) is captured with additional codes rather than within the hearing-impairment stem.
- Where hearing loss drives a communication or learning consequence, that functional dimension belongs in the **ICF**, complementing — not replacing — the ICD-11 diagnostic code.

A clinical caution: in early childhood, confirmed hearing impairment must be distinguished from — and ruled out before — attributing language delay to autism or global developmental delay, since untreated hearing loss is a common, treatable driver of speech and social-communication concerns.

## When to refer
Any failed newborn hearing screen, parental concern about responsiveness to sound, absent babble by 9–12 months, or regression in vocalisation warrants prompt audiological assessment. Early identification and amplification or intervention materially change speech-language trajectories.

## The Pinnacle way
Developmental measurement supports care planning; diagnosis requires an appropriately qualified healthcare professional., under qualified clinician care — never from a code lookup or an online form. For children where confirmed hearing impairment affects communication, our [speech therapy](https://www.pinnacleblooms.org/top-speech-therapy-center-india-proven-improvement-rate) pathway works alongside audiology, and the [AbilityScore®](/ask/what-is-the-abilityscore-and-how-is-it-calculated) gives a measurable functional baseline to track progress. [Partner with us](/) for coordinated developmental care.

## Trusted sources
WHO ICD-11 (Chapter 08, hearing impairment and deafness block); WHO guidance on grades of hearing loss; CDC developmental milestones; American Academy of Pediatrics newborn hearing screening guidance.

**Next step —** Confirmed or suspected hearing impairment with a communication impact? [Refer to a Pinnacle clinician](/) for coordinated audiology-aligned developmental assessment.

This is general information, not a diagnosis — individual assessment and diagnosis require an appropriately qualified healthcare professional.

## Sources
- WHO ICD-11: https://icd.who.int/en
- WHO — World Report on Hearing: https://www.who.int
- CDC — Learn the Signs. Act Early.: https://www.cdc.gov/child-development
- American Academy of Pediatrics (HealthyChildren.org): https://www.healthychildren.org

## Connected topics and perspectives
- Conditions: https://pinnacleblooms.org/ask/conditions
- Doctor: https://pinnacleblooms.org/ask/lens/stakeholder/doctor
- Sensory: https://pinnacleblooms.org/ask/lens/domain/sensory
- Definition: https://pinnacleblooms.org/ask/lens/intent/definition
- Screen: https://pinnacleblooms.org/ask/lens/lifecycle/screen
- Screen: https://pinnacleblooms.org/ask/lens/route/screen
- Early Clarity: https://pinnacleblooms.org/ask/lens/empowerment/early_clarity

## Related question paths

### Understand the subject
- ICD-11 Classification for Auditory Processing Difficulties: https://pinnacleblooms.org/ask/what-is-the-icd-11-classification-for-auditory-processing-difficulties
- What is Hearing Impairment, and what are its ICD-11 features in early childhood?: https://pinnacleblooms.org/ask/what-is-hearing-impairment-and-what-are-its-icd-11-features-in-early-childhood
- What is the SNOMED CT concept for Hearing Impairment?: https://pinnacleblooms.org/ask/what-is-the-snomed-ct-concept-for-hearing-impairment
- ICF Functioning Domains Affected by Hearing Impairment in Early Childhood: https://pinnacleblooms.org/ask/which-icf-functioning-domains-does-hearing-impairment-affect-in-early-childhood
- Types and Levels of Hearing Impairment: https://pinnacleblooms.org/ask/what-are-the-types-or-levels-of-hearing-impairment
- How Hearing Impairment Affects a Child's Daily Life: https://pinnacleblooms.org/ask/how-does-hearing-impairment-affect-a-child-s-daily-life
- Is Hearing Impairment considered a disability?: https://pinnacleblooms.org/ask/is-hearing-impairment-considered-a-disability
- Is Hearing Impairment Genetic or Hereditary?: https://pinnacleblooms.org/ask/is-hearing-impairment-genetic-or-hereditary
- What are common myths about Hearing Impairment?: https://pinnacleblooms.org/ask/what-are-common-myths-about-hearing-impairment
- What causes hearing impairment in children?: https://pinnacleblooms.org/ask/what-causes-hearing-impairment-in-children
- Early Intervention Outcomes for Hearing Impairment in Children Under 7: https://pinnacleblooms.org/ask/what-does-current-research-show-about-early-intervention-outcomes-for-hearing-impairment-in-children-under-7
- What is Hearing Impairment?: https://pinnacleblooms.org/ask/what-is-hearing-impairment

### Recognise signs & concerns
- Hearing Impairment red flags for referral: https://pinnacleblooms.org/ask/what-clinical-red-flags-for-hearing-impairment-warrant-referral-in-a-young-child
- Early indicators of hearing impairment for paediatricians: https://pinnacleblooms.org/ask/what-early-indicators-of-hearing-impairment-should-a-paediatrician-watch-for
- When should a doctor refer a child with suspected Hearing Impairment for developmental therapy?: https://pinnacleblooms.org/ask/when-should-a-doctor-refer-a-child-with-suspected-hearing-impairment-for-developmental-therapy
- Can Hearing Impairment Be Cured?: https://pinnacleblooms.org/ask/can-hearing-impairment-be-cured
- Can Hearing Impairment Be Prevented?: https://pinnacleblooms.org/ask/can-hearing-impairment-be-prevented
- Do boys show hearing impairment differently?: https://pinnacleblooms.org/ask/do-boys-show-hearing-impairment-differently
- Do girls show hearing impairment differently?: https://pinnacleblooms.org/ask/do-girls-show-hearing-impairment-differently
- How a frontline health worker can spot Hearing Impairment early: https://pinnacleblooms.org/ask/how-can-a-frontline-health-worker-spot-a-child-with-possible-hearing-impairment-early
- What are the early signs of Hearing Impairment?: https://pinnacleblooms.org/ask/what-are-the-early-signs-of-hearing-impairment
- Early Signs of Hearing Impairment in a 1-Year-Old Boy: https://pinnacleblooms.org/ask/what-are-the-early-signs-of-hearing-impairment-in-a-1-year-old-boy
- Early Signs of Hearing Impairment in a 1-Year-Old Girl: https://pinnacleblooms.org/ask/what-are-the-early-signs-of-hearing-impairment-in-a-1-year-old-girl
- Early Signs of Hearing Impairment at 12–18 Months: https://pinnacleblooms.org/ask/what-are-the-early-signs-of-hearing-impairment-in-a-12-to-18-month-old

### Explore causes & influences
- Contributing Factors for Hearing Impairment in Early Childhood: https://pinnacleblooms.org/ask/what-are-the-known-contributing-factors-for-hearing-impairment-in-early-childhood
- Are Boys More Likely to Have Hearing Impairment?: https://pinnacleblooms.org/ask/are-boys-more-likely-to-have-hearing-impairment
- Are girls more likely to have hearing impairment?: https://pinnacleblooms.org/ask/are-girls-more-likely-to-have-hearing-impairment
- Early Intervention for Hearing Impairment: Advancing Child Rights and the SDGs: https://pinnacleblooms.org/ask/how-does-early-intervention-for-hearing-impairment-advance-un-child-rights-uncrpd-and-the-sdgs
- What causes hearing impairment in young children?: https://pinnacleblooms.org/ask/what-causes-hearing-impairment-in-young-children
- Cost-effectiveness of early therapy for hearing impairment: https://pinnacleblooms.org/ask/what-is-the-cost-effectiveness-of-early-therapy-for-hearing-impairment-in-young-children
- Hearing Impairment in young children: India's prevalence and public-health burden: https://pinnacleblooms.org/ask/what-is-the-prevalence-and-public-health-burden-of-hearing-impairment-among-young-children-in-india

### Understand assessment
- Screening and diagnostic pathway for hearing impairment under 7: https://pinnacleblooms.org/ask/what-is-the-recommended-screening-and-diagnostic-pathway-for-hearing-impairment-in-children-under-7
- How AbilityScore Tracks Progress in a Child with Hearing Impairment: https://pinnacleblooms.org/ask/how-does-abilityscore-track-progress-in-a-child-with-hearing-impairment
- How Hearing Impairment Is Assessed in a Young Child: https://pinnacleblooms.org/ask/how-is-hearing-impairment-assessed-in-a-young-child
- What does an AbilityScore of 0–100 mean for a child with Hearing Impairment?: https://pinnacleblooms.org/ask/what-does-an-abilityscore-of-0-100-mean-for-a-child-with-hearing-impairment
- What does an AbilityScore of 100–200 mean for a child with Hearing Impairment?: https://pinnacleblooms.org/ask/what-does-an-abilityscore-of-100-200-mean-for-a-child-with-hearing-impairment
- AbilityScore 200–300 for a child with Hearing Impairment: https://pinnacleblooms.org/ask/what-does-an-abilityscore-of-200-300-mean-for-a-child-with-hearing-impairment
- What an AbilityScore of 300–400 Means for Hearing Impairment: https://pinnacleblooms.org/ask/what-does-an-abilityscore-of-300-400-mean-for-a-child-with-hearing-impairment
- What an AbilityScore of 400–500 Means for Hearing Impairment: https://pinnacleblooms.org/ask/what-does-an-abilityscore-of-400-500-mean-for-a-child-with-hearing-impairment
- What does an AbilityScore of 500–600 mean for a child with Hearing Impairment?: https://pinnacleblooms.org/ask/what-does-an-abilityscore-of-500-600-mean-for-a-child-with-hearing-impairment
- What an AbilityScore® of 600–700 Means for a Child with Hearing Impairment: https://pinnacleblooms.org/ask/what-does-an-abilityscore-of-600-700-mean-for-a-child-with-hearing-impairment
- What does an AbilityScore of 700–800 mean for a child with Hearing Impairment?: https://pinnacleblooms.org/ask/what-does-an-abilityscore-of-700-800-mean-for-a-child-with-hearing-impairment
- What does an AbilityScore of 800–900 mean for a child with Hearing Impairment?: https://pinnacleblooms.org/ask/what-does-an-abilityscore-of-800-900-mean-for-a-child-with-hearing-impairment

### Explore therapy & support
- Which ICHI Interventions Apply to Childhood Hearing Impairment?: https://pinnacleblooms.org/ask/which-ichi-health-interventions-apply-to-hearing-impairment-in-young-children
- How caregivers can support a child with hearing impairment: https://pinnacleblooms.org/ask/as-a-grandparent-or-caregiver-how-can-i-support-a-child-with-hearing-impairment-day-to-day
- Can a child with hearing impairment attend a mainstream school?: https://pinnacleblooms.org/ask/can-a-child-with-hearing-impairment-attend-a-mainstream-school
- Hearing Impairment and Mainstream Schooling: https://pinnacleblooms.org/ask/can-a-child-with-hearing-impairment-attend-a-regular-school
- Can a child with hearing impairment live independently?: https://pinnacleblooms.org/ask/can-a-child-with-hearing-impairment-grow-up-to-live-independently
- How a teacher can help a child with Hearing Impairment learn: https://pinnacleblooms.org/ask/how-can-a-classroom-teacher-help-a-child-with-hearing-impairment-take-part-and-learn
- Identifying and supporting children under 7 with hearing impairment: https://pinnacleblooms.org/ask/how-can-a-district-early-intervention-programme-identify-and-support-children-under-7-with-hearing-impairment
- How a teacher can include a child with hearing impairment: https://pinnacleblooms.org/ask/how-can-a-teacher-include-and-support-a-young-child-with-hearing-impairment-in-a-mainstream-classroom
- How to Support Sensory Development with Hearing Impairment: https://pinnacleblooms.org/ask/how-can-we-support-sensory-development-in-a-child-with-hearing-impairment
- How therapy helps a child with hearing impairment make progress: https://pinnacleblooms.org/ask/how-does-therapy-help-a-child-with-hearing-impairment-make-progress
- How Hearing Impairment Is Diagnosed in a Child: https://pinnacleblooms.org/ask/how-is-hearing-impairment-diagnosed-in-a-child
- How Hearing Impairment Is Supported Through Therapy: https://pinnacleblooms.org/ask/how-is-hearing-impairment-supported-through-therapy