Skip to content
Dx

ICD-10-CM 2027 diagnosis code

R49.0Dysphonia

✓ Billable / specific

R49.0 is a valid, billable ICD-10-CM code for dysphonia. It can be reported on claims for dates of service from October 1, 2026 – September 30, 2027.

Looking up by condition? See ICD-10 code for Dysphonia, ICD-10 code for Hoarseness.

Code unchanged since ICD-10-CM took effect on October 1, 2015. Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data

About R49.0

R49.0 is the ICD-10-CM diagnosis code for Dysphonia. It belongs to category R49 (voice and resonance disorders), block R47-R49 (symptoms and signs involving speech and voice) and chapter 18 (symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified). It is billable, so it can be reported on its own for dates of service from October 1, 2026 through September 30, 2027.

Within R49 (voice and resonance disorders), R49.0 is specifically for Dysphonia. Related codes cover Aphonia (R49.1), Hypernasality and hyponasality (R49.2), other voice and resonance disorders (R49.8) and unspecified voice and resonance disorder (R49.9).

It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.

In MS-DRG v44.0, it is part of the grouping logic for DRG 154 (Other Ear, Nose, Mouth and Throat Diagnoses with MCC, relative weight 1.5921), DRG 155 (Other Ear, Nose, Mouth and Throat Diagnoses with CC, relative weight 0.9322) and DRG 156 (Other Ear, Nose, Mouth and Throat Diagnoses without CC/MCC, relative weight 0.6659), in MDC 03 (Diseases and Disorders of the Ear, Nose, Mouth and Throat), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.

Before ICD-10, this condition was coded in ICD-9-CM as 784.42 (Dysphonia).

Coding notes

Applicable toConditions and synonyms classified to this code
  • Hoarseness

Notes that apply from higher levels

Instructions written at a parent level also apply to R49.0.

› From R49 Voice and resonance disorders
Excludes1
  • psychogenic voice and resonance disorders (F44.4)

Broader instructions also apply from Chapter 18: Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified.

Alphabetic index entries

2 entries

Terms in the official ICD-10-CM index that lead to R49.0.

MS-DRG v44.0 grouping

All DRGs →

Inpatient MS-DRGs this diagnosis can group to, as the principal or a secondary diagnosis, depending on the rest of the claim.

ICD-9-CM equivalent

Converter →

From the CMS 2018 General Equivalence Mappings (GEMs), the final GEMs release.

Code history

  1. 2016
  2. 2017
  3. 2018
  4. 2019
  5. 2020
  6. 2021
  7. 2022
  8. 2023
  9. 2024
  10. 2025
  11. 2026
  12. 2027
  • FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
  • No changes since FY2016.

Common questions about R49.0

Is R49.0 billable?

Yes. R49.0 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).

Can R49.0 be used as a principal diagnosis?

Yes. The Medicare Code Editor doesn't restrict R49.0 as a principal diagnosis.

Is R49.0 a CC or MCC?

No. R49.0 is neither a CC nor an MCC under MS-DRG v44.0.

What DRG does R49.0 group to?

R49.0 is used in the MS-DRG v44.0 logic for MS-DRG 154 (Other Ear, Nose, Mouth and Throat Diagnoses with MCC), MS-DRG 155 (Other Ear, Nose, Mouth and Throat Diagnoses with CC) and MS-DRG 156 (Other Ear, Nose, Mouth and Throat Diagnoses without CC/MCC). Which one applies depends on whether it is the principal diagnosis and on the rest of the claim.

What is the ICD-9 code for R49.0?

The CMS General Equivalence Mappings map R49.0 to ICD-9-CM 784.42.