R49.9 Unspecified voice and resonance disorder

Billable ICD-10-CM code, FY2026.

Applicable to

• Change in voice NOS
• Resonance disorder NOS

Applies from R49 Voice and resonance disorders

Excludes1 (never code together)

• psychogenic voice and resonance disorders (F44.4)

MS-DRG index

Defines the logic of DRG(s) 154-156 in MDC 03.

Approximate ICD-9-CM (GEMs)

• 784.40 Voice and resonance disorder, unspecified (approximate)

Diagnosis Index entries for R49.9

• Change (s) (in) (of) › voice
• Defect, defective › voice
• Disorder (of) › resonance
• Disorder (of) › voice
• Disturbance (s) › voice
• Voice › change

Nearby codes

• R49.1 Aphonia
• R49.2 Hypernasality and hyponasality
• R49.21 Hypernasality
• R49.22 Hyponasality
• R49.8 Other voice and resonance disorders
• R49.9 Unspecified voice and resonance disorder (this code)