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This allows ICF to be coded as fatigue or unspecified chronic fatigue, and help distinguish it from other forms of fatigue including cancer-related fatigue, chronic fatigue syndrome, fatigue due to depression, fatigue due to old age, weakness/asthenia, and in the ICD-10, also from fatigue lasting under 6 months.
The name Chronic Fatigue Syndrome has been attributed to the US Centers for Disease Control 1988 research case definition for the illness, "Chronic fatigue syndrome: a working case definition". [38] [40] Chronic Fatigue Syndrome (CFS) was added to ICD-9 after 1988 and listed under code 780.71, Symptoms Signs and Ill-defined Conditions ...
People suffered from "chronic or recurrent fatigue", among a large number of other symptoms. [1]: 28–29 The initial link between elevated antibodies and the Epstein–Barr virus led to the name "chronic Epstein–Barr virus syndrome". The CDC renamed it chronic fatigue syndrome (CFS), as a viral cause could not be confirmed in studies.
Fatigue is a state of tiredness (which is not sleepiness), exhaustion [1] or loss of energy. [2] [3]Fatigue (in the medical sense) is sometimes associated with medical conditions including autoimmune disease, organ failure, chronic pain conditions, mood disorders, heart disease, infectious diseases, and post-infectious-disease states. [4]
The main symptom of hypersomnia is excessive daytime sleepiness (EDS), or prolonged nighttime sleep, [7] which has occurred for at least 3 months prior to diagnosis. [8] Sleep drunkenness is also a symptom found in hypersomniac patients. [9] [10] It is a difficulty transitioning from sleep to wake. [10]
[1] [2] A proper diagnosis of the underlying cause and ultimately treatment of symptoms and/or the underlying cause can help mitigate such complications. [3] According to the National Sleep Foundation, around 20 percent of people experience EDS. [4]
Signs and symptoms are nonspecific and generally related to the blood cytopenias: Anemia (low RBC count or reduced hemoglobin) – chronic tiredness, shortness of breath, chilled sensation, sometimes chest pain [6] Neutropenia (low neutrophil count) – increased susceptibility to infection [7]
Lethargy is a state of tiredness, sleepiness, weariness, fatigue, sluggishness, or lack of energy. It can be accompanied by depression , decreased motivation, or apathy . Lethargy can be a normal response to inadequate sleep, overexertion, overworking, stress, lack of exercise, improper nutrition, drug abuse, boredom , or a symptom of an ...