Voice and resonance disorders (R49)

Browse all the diagnosis codes used for voice and resonance disorders (r49). For easy navigation, the diagnosis codes are sorted in alphabetical order and grouped by sections. Each section is clearly marked with its description, and the corresponding three-digit code range. This format makes it simple to browse diagnosis codes in this chapter or section and find what you're looking for. We've also added green checkmark icons to label billable codes, and red warning icons for non-billable ones. This makes it easy to identify which codes can be billed.

Clinical Information

Aphonia - Complete loss of phonation due to organic disease of the larynx or to nonorganic (i.e., psychogenic) causes.

Dysphonia - Difficulty and/or pain in PHONATION or speaking.

Phonation - The process of producing vocal sounds by means of VOCAL CORDS vibrating in an expiratory blast of air.

Vocal Cord Dysfunction - A disorder characterized by an intermittent abnormal VOCAL CORDS movement toward the midline during inspiration or expiration resulting in upper AIRWAY OBSTRUCTION.

Instructional Notations

Type 1 Excludes

A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.

  • psychogenic voice and resonance disorders F44.4