Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified
General symptoms and signs
2021 ICD-10-CM Diagnosis Code R64
2021 ICD-10-CM Diagnosis Code R64
2016 2017 2018 2019 2020 2021 Billable/Specific Code
- R64 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 R64 became effective on October 1, 2020.
- This is the American ICD-10-CM version of R64 - other international versions of ICD-10 R64 may differ.
Code First Help
Certain conditions have both an underlying etiology and multiple body system manifestations due to the underlying etiology. For such conditions, ICD-10-CM has a coding convention that requires the underlying condition be sequenced first followed by the manifestation. Wherever such a combination exists there is a "use additional code" note at the etiology code, and a "code first" note at the manifestation code. These instructional notes indicate the proper sequencing order of the codes, etiology followed by manifestation. In most cases the manifestation codes will have in the code title, "in diseases classified elsewhere." Codes with this title are a component of the etiology/manifestation convention. The code title indicates that it is a manifestation code. "In diseases classified elsewhere" codes are never permitted to be used as first listed or principle diagnosis codes. They must be used in conjunction with an underlying condition code and they must be listed following the underlying condition.
- underlying condition, if known
Type 1 Excludes
Type 1 Excludes Help
A type 1 excludes note is a pure excludes. It means "not coded here". A type 1 excludes note indicates that the code excluded should never be used at the same time as R64. A type 1 excludes note is for used for when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
The following code(s) above R64
contain 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 R64
- Aids wasting disease
- Cachexia (wasting syndrome)
- Cachexia associated with aids
ICD-10-CM R64 is grouped within Diagnostic Related Group(s) (MS-DRG v38.0):
- A condition of involuntary weight loss of greater then 10% of baseline body weight. It is characterized by atrophy of muscles and depletion of lean body mass. Wasting is a sign of malnutrition as a result of inadequate dietary intake, malabsorption, or hypermetabolism.
- General ill health, malnutrition, and weight loss, usually associated with chronic disease.
- State of general ill health characterized by malnutrition, weakness, and emaciation; occurs during the course of a chronic disease.
- The loss of body weight and muscle mass frequently seen in patients with cancer, aids, or other diseases.
- 947 Signs and symptoms with mcc
- 948 Signs and symptoms without mcc
Convert R64 to ICD-9-CM
- 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
ICD-10-CM Codes Adjacent To R64
Adult failure to thrive
Symptoms and signs concerning food and fluid intake
Abnormal weight loss
Abnormal weight gain
Other symptoms and signs concerning food and fluid intake
Symptoms and signs specifically associated with systemic inflammation and infection
Systemic inflammatory response syndrome (SIRS) of non-infectious origin
…… without acute organ dysfunction
…… with acute organ dysfunction
…… without septic shock
Other general symptoms and signs
Hypothermia, not associated with low environmental temperature
Nonspecific symptoms peculiar to infancy
Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.