Category R49

Voice and resonance disorders

Clinical Classification Guidelines

Specific Diagnosis Codes

Dysphonia
R49.0
Aphonia
R49.1
Hypernasality and hyponasality
R49.2
Hypernasality
R49.21
Hyponasality
R49.22
Other voice and resonance disorders
R49.8
Unspecified voice and resonance disorder
R49.9