R49.1
BillableAphonia
Aphonia
Coding Notes
Inclusion Terms
Alternative clinical terms for this condition
- Loss of voice
Excludes 1
Codes that cannot be used together with this code (mutual exclusion)
Excludes 2
Conditions not included here, but the patient may have both
- •abnormal findings on antenatal screening of motherO28
- •certain conditions originating in the perinatal periodP04-P96
- signs and symptoms classified in the body system chapters
- •signs and symptoms of breast,N63, N64.5
Related Codes(4)
ICD-11 Equivalents(1)
ICD-11 Equivalents
View full mappingCorresponding ICD-11 codes from the WHO crosswalk mapping
Also Known As / Clinical Terms(78)
SNOMED CT
- Spastic aphonia610000
- Aphonia paralytica23187009
- Absence of voice44564008
- Does not phonate44564008
- Does not produce voice44564008
- Does not vocalise44564008
- Does not vocalize44564008
- Loss of voice44564008
- Apraxia of phonation74227009
- Apraxia of speech74227009
- Apraxic aphonia74227009
- Verbal apraxia74227009
- Hyperkinetic aphonia229638001
- Hypofunctional aphonia229639009
- Hyperfunctional aphonia229640006
- Unable to phonate286327002
- Unable to produce voice286327002
- Unable to vocalise286327002
- Unable to vocalize286327002
- Unable to produce voiced sounds306755002
- Finding related to ability to produce voiced sounds365020008
- Generalised dystonia425492002
- Generalized dystonia425492002
- Aphonia441913003
- Aphonia, deafness, retinal dystrophy, bifid halluces, intellectual disability syndrome773583007
- Aphonia, deafness, retinal dystrophy, duplicated halluces, intellectual disability syndrome773583007
- Aphonia, hearing loss, retinal dystrophy, duplicated halluces, intellectual disability syndrome773583007
- Dystonia aphonia syndrome782718007
UMLS
- Absence of VoiceC0003564
- Absence of voiceC0003564
- AphoniaC0003564
- Aphonia (disorder)C0003564
- Does not phonateC0003564
- Does not produce voiceC0003564
- Does not vocaliseC0003564
- Does not vocalizeC0003564
- Loss of voiceC0003564
- Loss of voice (finding)C0003564
- Voice AbsenceC0003564
- Voice AbsencesC0003564
- absence of voiceC0003564
- aphoniaC0003564
- loss of voiceC0003564
- loss voiceC0003564
- voice lossC0003564
Clinical Terms
- Hypofunctional aphonia
- Unable to phonate
- Does not produce voice
- Aphonia, deafness, retinal dystrophy, bifid halluces, intellectual disability syndrome
- voice loss
- Loss of voice
- Spastic aphonia
- Unable to vocalize
- Loss of voice (finding)
- Aphonia paralytica
- Aphonia, hearing loss, retinal dystrophy, duplicated halluces, intellectual disability syndrome
- Does not vocalise
- Generalized dystonia
- Unable to produce voice
- Hyperkinetic aphonia
- Absence of Voice
- Aphonia (disorder)
- loss voice
- Hyperfunctional aphonia
- Apraxia of phonation
- Aphonia, deafness, retinal dystrophy, duplicated halluces, intellectual disability syndrome
- Verbal apraxia
- Finding related to ability to produce voiced sounds
- Unable to produce voiced sounds
- Apraxic aphonia
- Unable to vocalise
- Dystonia aphonia syndrome
- Does not phonate
- Apraxia of speech
- Voice Absence
- Does not vocalize
- Generalised dystonia
- Voice Absences
Frequently Asked Questions
What is the ICD-10 code for aphonia?
The ICD-10-CM code for aphonia is R49.1. The full clinical description is "Aphonia". R49.1 is a billable/specific code that can be used on insurance claims and medical billing.
What does ICD-10 code R49.1 mean?
ICD-10-CM code R49.1 represents “Aphonia”. It is classified under Chapter 18: Symptoms, Signs and Abnormal Clinical and Laboratory Findings and is a billable/specific code that can be used on a claim.
Is R49.1 a billable code?
Yes, R49.1 is a billable/specific ICD-10-CM code and can be used to indicate a diagnosis on a medical claim.
What chapter is R49.1 in?
R49.1 is in Chapter 18: Symptoms, Signs and Abnormal Clinical and Laboratory Findings (codes R00-R99).
What codes cannot be used with R49.1?
R49.1 has Excludes1 notes indicating codes that cannot be used together with it, including: psychogenic voice and resonance disorders (F44.4).
What SNOMED CT codes does R49.1 map to?
R49.1 maps to 14 SNOMED CT concepts: 44564008, 441913003, 23187009, 773583007, 74227009, and 9 more. SNOMED CT is a clinical terminology used in electronic health records.
What are the UMLS CUIs for R49.1?
R49.1 is linked to 1 UMLS Concept Unique Identifier: C0003564. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.
How does R49.1 relate to ICF functioning codes?
ICF (International Classification of Functioning, Disability and Health) codes describe how conditions like aphonia affect a person's functioning — body functions, activities, participation, and environmental factors. AutoICD provides ICF Core Sets for 12+ conditions and can map clinical text to ICF categories automatically. Browse the ICF directory to explore functioning codes.
What is the ICD-11 equivalent of R49.1?
R49.1 maps to the ICD-11 code: MA82.0 (Aphonia).
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Includes SNOMED Clinical Terms® (SNOMED CT®) used by permission of SNOMED International. Includes content from the UMLS Metathesaurus, courtesy of the U.S. National Library of Medicine.