2027 ICD-10-CM Diagnosis Code R49.9Unspecified voice and resonance disorder
ICD-10-CM Codes›R00–R99›R47-R49›R49
- Billable — Valid for Submission
- Not Chronic
R49.9 is a billable ICD-10-CM diagnosis code for unspecified voice and resonance disorder. It is valid on HIPAA claims for fiscal year 2027 (October 1, 2026 through September 30, 2027) and groups to MS-DRG 154 through 156. As a symptom code, it should not be used as a principal diagnosis once a related definitive diagnosis has been established. Coders also document this condition as abnormal voice. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Other general signs and symptoms.
Code Identity
Code Classification
Approximate SynonymsGuidance
Alternate terms and clinical phrases that map to this code.
- Abnormal voice
- Change in voice
- Decreased vocal resonance
- Finding of function of vocal cords
- Pathologic change of voice
- Vocal cord dysfunction
- Vocal resonance finding
- Voice disorder due to iatrogenic factor
Instructional NotesGuidance
Instructions from the official ICD-10-CM Tabular List that apply to R49.9: its own notes plus those printed at R49 and Chapter 18. A note printed at a category, block or chapter applies to every code under it.
Applicable To
Conditions this code is used for: synonyms of the title or, for "other specified" codes, the conditions assigned to it. The list is not exhaustive.
- Change in voice NOS
- Resonance disorder NOS
Excludes1
Not coded here: the excluded code is never reported together with this one, unless the two conditions are unrelated.
Excludes2
Not included here: the excluded condition is not part of this code, but a patient may have both, so both codes may be reported.
Notes
General instructions on how these codes are used.
- This chapter includes symptoms, signs, abnormal results of clinical or other investigative procedures, and ill-defined conditions regarding which no diagnosis classifiable elsewhere is recorded.
- Signs and symptoms that point rather definitely to a given diagnosis have been assigned to a category in other chapters of the classification. In general, categories in this chapter include the less well-defined conditions and symptoms that, without the necessary study of the case to establish a final diagnosis, point perhaps equally to two or more diseases or to two or more systems of the body. Practically all categories in the chapter could be designated 'not otherwise specified', 'unknown etiology' or 'transient'. The Alphabetical Index should be consulted to determine which symptoms and signs are to be allocated here and which to other chapters. The residual subcategories, numbered .8, are generally provided for other relevant symptoms that cannot be allocated elsewhere in the classification.
- The conditions and signs or symptoms included in categories R00-R94 consist of:
- (a) cases for which no more specific diagnosis can be made even after all the facts bearing on the case have been investigated;
- (b) signs or symptoms existing at the time of initial encounter that proved to be transient and whose causes could not be determined;
- (c) provisional diagnosis in a patient who failed to return for further investigation or care;
- (d) cases referred elsewhere for investigation or treatment before the diagnosis was made;
- (e) cases in which a more precise diagnosis was not available for any other reason;
- (f) certain symptoms, for which supplementary information is provided, that represent important problems in medical care in their own right.
Source: CMS ICD-10-CM Tabular List. How to read instructional notes.
Index to Diseases and InjuriesGuidance
Alphabetical index entries that point to this code.
Change (s) (in) (of) See Also: Removal;
voice R49.9
voice R49.9
Disorder (of) See Also: Disease;
Disturbance (s) See Also: Disease;
voice R49.9
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
Patient EducationClinical
Voice Disorders
Voice is the sound made by air passing from your lungs through your larynx, or voice box. In your larynx are your vocal cords, two bands of muscle that vibrate to make sound. For most of us, our voices play a big part in who we are, what we do, and how we communicate. Like fingerprints, each person's voice is unique.
Read the full article at MedlinePlus
Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.
Convert R49.9 to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About R49.9Overview
What is the ICD-10 code for unspecified voice and resonance disorder?
The ICD-10-CM code for unspecified voice and resonance disorder is R49.9 (sometimes written as R499). It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
Is R49.9 (Voice and resonance disorders) a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report unspecified voice and resonance disorder on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
What MS-DRG does R49.9 group to?
When unspecified voice and resonance disorder is the principal diagnosis on an inpatient stay, it groups to MS-DRG 156, 155, 154, with relative weights from 0.6656 to 1.5916 depending on complications. Higher weights mean higher Medicare reimbursement.
Can R49.9 be a principal diagnosis?
Use it with care. This is a symptom code, so once a definitive diagnosis explaining the unspecified voice and resonance disorder is established, that condition takes the principal position instead.
Can R49.9 be reported with F44.4?
Not as a rule. The Excludes1 note at R49, which applies to R49.9, lists "psychogenic voice and resonance disorders (F44.4)". An Excludes1 note means the excluded code is never reported together with this one; the only exception is when the two conditions are unrelated to each other (Official Guidelines, Section I.A.12.a).
