ICD-10-CM > R00-R99 > R47-R49 > R49 R49 Voice and resonance disorders Non-Billable/Non-Specific Type 1 Excludes psychogenic voice and resonance disorders (F44.4) Codes R49.0DysphoniaR49.1AphoniaR49.2Hypernasality and hyponasalityR49.21HypernasalityR49.22HyponasalityR49.8Other voice and resonance disordersR49.9Unspecified voice and resonance disorder