ICD-10-CM Codes
R00-R99 Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified
R00-R09 Symptoms and signs involving the circulatory and respiratory systems
R06- Abnormalities of breathing
2021 ICD-10-CM Diagnosis Code R06.5

2021 ICD-10-CM Diagnosis Code R06.5

Mouth breathing

2016

2017

2018

2019

2020

2021

Billable/Specific Code

R06.5 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
The 2021 edition of ICD-10-CM R06.5 became effective on October 1, 2020.
This is the American ICD-10-CM version of R06.5 - other international versions of ICD-10 R06.5 may differ.

Type 2 Excludes

Type 2 Excludes Help

A type 2 excludes note represents "not included here". A type 2 excludes note indicates that the condition excluded is not part of the condition it is excluded from but a patient may have both conditions at the same time. When a type 2 excludes note appears under a code it is acceptable to use both the code (R06.5) and the excluded code together.

dry mouth NOS (
ICD-10-CM Diagnosis Code R68.2
Dry mouth, unspecified
Type 1 Excludes
- dry mouth due to dehydration (E86.0)
- dry mouth due to sicca syndrome [Sjögren] (M35.0-)
- salivary gland hyposecretion (K11.7)
R68.2
)

The following code(s) above R06.5 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 R06.5:

R00-R99
2021 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
R06
ICD-10-CM Diagnosis Code R06
Abnormalities of breathing
Type 1 Excludes
- acute respiratory distress syndrome (J80)
- respiratory arrest (R09.2)
- respiratory arrest of newborn (P28.81)
- respiratory distress syndrome of newborn (P22.-)
- respiratory failure (J96.-)
- respiratory failure of newborn (P28.5)
Abnormalities of breathing

Clinical Information

Abnormal breathing through the mouth, usually associated with obstructive disorders of the nasal passages.
Habitual breathing through the mouth, usually associated with obstruction of nasal passages

ICD-10-CM R06.5 is grouped within Diagnostic Related Group(s) (MS-DRG v38.0):

154 Other ear, nose, mouth and throat diagnoses with mcc
155 Other ear, nose, mouth and throat diagnoses with cc
156 Other ear, nose, mouth and throat diagnoses without cc/mcc

Convert R06.5 to ICD-9-CM

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

Diagnosis Index entries containing back-references to R06.5:

Breathing
- mouth R06.5
Snuffles (non-syphilitic) R06.5

ICD-10-CM Codes Adjacent To R06.5

R06.0 Dyspnea

R06.00 …… unspecified

R06.01 Orthopnea

R06.02 Shortness of breath

R06.03 Acute respiratory distress

R06.09 Other forms of dyspnea

R06.1 Stridor

R06.2 Wheezing

R06.3 Periodic breathing

R06.4 Hyperventilation

R06.5 Mouth breathing

R06.6 Hiccough

R06.7 Sneezing

R06.8 Other abnormalities of breathing

R06.81 Apnea, not elsewhere classified

R06.82 Tachypnea, not elsewhere classified

R06.83 Snoring

R06.89 Other abnormalities of breathing

R06.9 Unspecified abnormalities of breathing

R07 Pain in throat and chest

R07.0 Pain in throat

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

2021 ICD-10-CM Diagnosis Code R06.5

Mouth breathing

Dry mouth, unspecified

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

Abnormalities of breathing