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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.
This is a shortened version of the sixteenth chapter of the ICD-9: Symptoms, Signs and Ill-defined Conditions. It covers ICD codes 780 to 799. The full chapter can be found on pages 455 to 471 of Volume 1, which contains all (sub)categories of the ICD-9. Volume 2 is an alphabetical index of Volume 1.
The hallmark symptom is post-exertional malaise, a worsening of the illness which starts hours to days after minor physical or mental activity. This "crash" can last from hours or days to several months. Further common symptoms include dizziness, nausea and pain. [3] [10] The cause of the disease is unknown. [11]
Different self-reported causes of CFS are associated with significant differences in clinical measures and outcomes. [ 22 ] An examination of the CDC 1994 criteria applied to several hundred patients found that the diagnosis could be strengthened by adding two new symptoms (anorexia and nausea) and eliminating three others (muscle weakness ...
Episodes of vasovagal syncope are typically recurrent and usually occur when the predisposed person is exposed to a specific trigger. Before losing consciousness, the individual frequently experiences early signs or symptoms such as lightheadedness, nausea, the feeling of being extremely hot or cold (accompanied by sweating), ringing in the ears, an uncomfortable feeling in the heart, fuzzy ...
Post-exertional malaise; Other names: Post-exertional symptom exacerbation (PESE) Postexertional malaise (PEM) Post-exertional neuroimmune exhaustion (PENE) Chart of physical, cognitive, and emotional activities that may trigger PEM: Symptoms: Worsening of symptoms after ordinary activity: Causes: Myalgic Encephalomyelitis/Chronic Fatigue Syndrome
Post-exertional malaise (PEM) and exercise intolerance are common symptoms of post-acute infection syndromes. [5] Post-exertional malaise is a worsening of symptoms after minimal physical or mental activity, [6] and is a cardinal symptom of myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS). [7]
Malaise is a non-specific symptom and can be present in the slightest ailment, such as an emotion (causing fainting, a vasovagal response) or hunger (light hypoglycemia [2]), to the most serious conditions (cancer, stroke, heart attack, internal bleeding, etc.).