ICD-10-CM Code R49.21
Hypernasality
Billable Code
Billable codes are sufficient justification for admission to an acute care hospital when used a principal diagnosis.R49.21 is a billable ICD code used to specify a diagnosis of hypernasality. A 'billable code' is detailed enough to be used to specify a medical diagnosis.
The ICD code R49 is used to code Dysphonia
Dysphonia is the medical term for disorders of the voice: an impairment in the ability to produce voice sounds using the vocal organs (it is distinct from dysarthria which signifies dysfunction in the muscles needed to produce speech). Thus, dysphonia is a phonation disorder. The dysphonic voice can be hoarse or excessively breathy, harsh, or rough, but some kind of phonation is still possible (contrasted with the more severe aphonia where phonation is impossible).
| MeSH Code: | D055154 |
| ICD 9 Code: | 784.42 |
MS-DRG Mapping
- DRG Group #154-156 - Other ear, nose, mouth and throat diagnoses with MCC.
- DRG Group #154-156 - Other ear, nose, mouth and throat diagnoses with CC.
- DRG Group #154-156 - Other ear, nose, mouth and throat diagnoses without CC or MCC.
ICD-10-CM Alphabetical Index References for 'R49.21 - Hypernasality'
The ICD-10-CM Alphabetical Index links the below-listed medical terms to the ICD code R49.21. Click on any term below to browse the alphabetical index.
Equivalent ICD-9 Code GENERAL EQUIVALENCE MAPPINGS (GEM)
This is the official exact match mapping between ICD9 and ICD10, as provided by the General Equivalency mapping crosswalk. This means that in all cases where the ICD9 code 784.43 was previously used, R49.21 is the appropriate modern ICD10 code.
Parent Code: R49.2 - Hypernasality and hyponasality