ICD-10-CM Codes
R00-R99
R40-R46
R43-
2023 ICD-10-CM Diagnosis Code R43

2023 ICD-10-CM Diagnosis Code R43

Disturbances of smell and taste

2016

2017

2018

2019

2020

2021

2022

2023

Non-Billable/Non-Specific Code

R43 should not be used for reimbursement purposes as there are multiple codes below it that contain a greater level of detail.
The 2023 edition of ICD-10-CM R43 became effective on October 1, 2022.
This is the American ICD-10-CM version of R43 - other international versions of ICD-10 R43 may differ.

The following code(s) above R43 contain annotation back-references

Annotation Back-References

In this context, annotation back-references refer to codes that contain:

Applicable To annotations, or
Code Also annotations, or
Code First annotations, or
Excludes1 annotations, or
Excludes2 annotations, or
Includes annotations, or
Note annotations, or
Use Additional annotations

that may be applicable to R43:

R00-R99
2023 ICD-10-CM Range R00-R99
Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified
Note
- 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.
Type 2 Excludes
- abnormal findings on antenatal screening of mother (O28.-)
- certain conditions originating in the perinatal period (P04-P96)
- signs and symptoms classified in the body system chapters
- signs and symptoms of breast (N63, N64.5)
Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified
R40-R46
2023 ICD-10-CM Range R40-R46
Symptoms and signs involving cognition, perception, emotional state and behavior
Type 2 Excludes
- symptoms and signs constituting part of a pattern of mental disorder (F01-F99)
Symptoms and signs involving cognition, perception, emotional state and behavior

Clinical Information

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

Code History

2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
2017 (effective 10/1/2016): No change
2018 (effective 10/1/2017): No change
2019 (effective 10/1/2018): No change
2020 (effective 10/1/2019): No change
2021 (effective 10/1/2020): No change
2022 (effective 10/1/2021): No change
2023 (effective 10/1/2022): No change

ICD-10-CM Codes Adjacent To R43

R41.83 Borderline intellectual functioning

R41.84 Other specified cognitive deficit

R41.840 Attention and concentration deficit

R41.841 Cognitive communication deficit

R41.842 Visuospatial deficit

R41.843 Psychomotor deficit

R41.844 Frontal lobe and executive function deficit

R41.89 Other symptoms and signs involving cognitive functions and awareness

R41.9 Unspecified symptoms and signs involving cognitive functions and awareness

R42 Dizziness and giddiness

R43 Disturbances of smell and taste

R43.0 Anosmia

R43.1 Parosmia

R43.2 Parageusia

R43.8 Other disturbances of smell and taste

R43.9 Unspecified disturbances of smell and taste

R44 Other symptoms and signs involving general sensations and perceptions

R44.0 Auditory hallucinations

R44.1 Visual hallucinations

R44.2 Other hallucinations

R44.3 Hallucinations, unspecified

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.

2023 ICD-10-CM Diagnosis Code R43

Disturbances of smell and taste

Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified

Symptoms and signs involving cognition, perception, emotional state and behavior