ICD-10 DIAGNOSIS CODE
Billable: Yes
Code Specificity: High
Code Set: ICD-10-CM 2026
R53.83 represents other fatigue. It is assigned when a healthcare provider documents fatigue, tiredness or lack of energy that cannot be linked to a more specific diagnosis. The fatigue ICD-10 code selected depends on the provider's documentation and R53.83 should only be used when no more specific ICD-10-CM code applies.
Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified
General symptoms and signs
Malaise and fatigue
Other fatigue (this code)
Note: Lethargy ICD-10 coding depends on the provider's documented diagnosis. Likewise, ICD-10 fatigue unspecified coding should only be assigned when documentation supports an unspecified fatigue condition rather than a more specific diagnosis.
Common CPT codes that may be billed with R53.83 when medically necessary include:
R53.83 should not be reported when documentation supports a more specific diagnosis that explains the patient's fatigue.
Examples include:
Note: If fatigue is documented as a symptom of a confirmed condition, the underlying condition should generally be coded according to ICD-10-CM coding guidelines.
Fatigue is a common clinical symptom characterized by persistent tiredness, lack of energy or reduced physical and mental performance that is not relieved by normal rest. It may occur as an isolated complaint or as a symptom of numerous acute or chronic medical conditions.
The fatigue ICD-10 code R53.83 is commonly used in primary care and specialty practices when fatigue is documented but no more specific fatigue diagnosis has been established.
Patients with fatigue may experience:
Note: The fatigue diagnosis code depends on the provider's documentation. The ICD-10 code for fatigue R53.83 should only be assigned when a more specific diagnosis is not documented.
The R53.83 diagnosis code represents other fatigue. It is assigned when a provider documents fatigue that does not meet the criteria for another specific fatigue-related diagnosis.
The term ICD-10 code for fatigue unspecified is often used when searching for fatigue coding. In practice, providers frequently report R53.83 for other fatigue when documentation supports its use, while code selection should always follow the provider's documented diagnosis.
The term ICD-10 code for fatigue unspecified is often used when searching for fatigue coding. In practice, providers frequently report R53.83 for other fatigue when documentation supports its use, while code selection should always follow the provider's documented diagnosis.
Not always. Lethargy ICD-10 coding depends on the provider's documentation. Although lethargy and fatigue are sometimes used interchangeably in clinical practice, the documented diagnosis determines the appropriate ICD-10-CM code.
R53.83 will be used when the fatigue does not meet the criteria for chronic fatigue syndrome or when the underlying cause is not specified. Also, use R53.81 when the patient meets the specific criteria for chronic fatigue syndrome.
