ICD-10-CM · Chapter 18 · R00-R99
R49 Voice and resonance disorders
Excludes 1 (cannot be coded together)
- psychogenic voice and resonance disorders (F44.4)
Subcodes
Subcodes are listed below for reference. Detail pages are not available for chapters 11–22.
| Code | Description | Billable |
|---|---|---|
| R49..0 | Dysphonia | Yes |
| R49..1 | Aphonia | Yes |
| R49..2 | Hypernasality and hyponasality | No |
| R49..21 | Hypernasality | Yes |
| R49..22 | Hyponasality | Yes |
| R49..8 | Other voice and resonance disorders | Yes |
| R49..9 | Unspecified voice and resonance disorder | Yes |
Last reviewed: September 2026