ICD-10-CM Code R43.8

Other disturbances of smell and taste

Version 2020 Billable Code No Valid Principal Dx

Valid for Submission

R43.8 is a billable code used to specify a medical diagnosis of other disturbances of smell and taste. The code is valid for the year 2020 for the submission of HIPAA-covered transactions. The ICD-10-CM code R43.8 might also be used to specify conditions or terms like aftertaste, anterior tongue taste disorder, bad taste in mouth, franklinic taste, garlic taste, hemiageusia, etc

According to ICD-10-CM guidelines this code should not to be used as a principal diagnosis code when a related definitive diagnosis has been established.

Short Description:Other disturbances of smell and taste
Long Description:Other disturbances of smell and taste

Tabular List of Diseases and Injuries

The Tabular List of Diseases and Injuries is a list of ICD-10 codes, organized "head to toe" into chapters and sections with guidance for inclusions, exclusions, descriptions and more. The following references are applicable to the code R43.8:

Inclusion Terms

Inclusion Terms
These terms are the conditions for which that code is to be used. The terms may be synonyms of the code title, or, in the case of "other specified" codes, the terms are a list of the various conditions assigned to that code. The inclusion terms are not necessarily exhaustive. Additional terms found only in the Alphabetic Index may also be assigned to a code.
  • Mixed disturbance of smell and taste

Index to Diseases and Injuries

The Index to Diseases and Injuries is an alphabetical listing of medical terms, with each term mapped to one or more ICD-10 code(s). The following references for the code R43.8 are found in the index:


The following clinical terms are approximate synonyms or lay terms that might be used to identify the correct diagnosis code:

  • Aftertaste
  • Anterior tongue taste disorder
  • Bad taste in mouth
  • Franklinic taste
  • Garlic taste
  • Hemiageusia
  • Hypogeusia
  • Loss of taste
  • Loss of taste
  • Loss of taste
  • Loss of taste anterior two thirds of tongue
  • Loss of taste posterior one third of tongue
  • Metallic taste
  • Neurologic unpleasant taste
  • O/E - taste sensation
  • On examination - taste loss anterior 2/3 tongue
  • Phantom taste
  • Primary bitter taste disorder
  • Primary salt taste disorder
  • Primary sweet taste disorder
  • Primary taste disorder
  • Primary taste disorder
  • Primary taste disorder
  • Pseudogeusesthesia
  • Secondary acid taste disorder
  • Secondary bitter taste disorder
  • Secondary sweet taste disorder
  • Secondary taste disorder
  • Sensitive to smells
  • Sensitivity to individual odor
  • Taste of food lingers
  • Taste sense altered
  • Unpleasant taste in mouth

Convert R43.8 to ICD-9

  • 781.1 - Smell & taste disturb (Approximate Flag)

Code Classification

  • Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00–R99)
    • Symptoms and signs involving cognition, perception, emotional state and behavior (R40-R46)
      • Disturbances of smell and taste (R43)

Code History

  • FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016
    (First year ICD-10-CM implemented into the HIPAA code set)
  • FY 2017 - No Change, effective from 10/1/2016 through 9/30/2017
  • FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018
  • FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019
  • FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020

Information for Patients

Taste and Smell Disorders

Our senses of taste and smell give us great pleasure. Taste helps us enjoy food and beverages. Smell lets us enjoy the scents and fragrances like roses or coffee. Taste and smell also protect us, letting us know when food has gone bad or when there is a gas leak. They make us want to eat, ensuring we get the nutrition we need.

People with taste disorders may taste things that aren't there, may not be able to tell the difference in tastes, or can't taste at all. People with smell disorders may lose their sense of smell, or things may smell different. A smell they once enjoyed may now smell bad to them.

Many illnesses and injuries can cause taste and smell disorders, including colds and head injuries. Some drugs can also affect taste and smell. Most people lose some ability to taste and smell as they get older. Treatment varies, depending on the problem and its cause.

NIH: National Institute on Deafness and Other Communication Disorders

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