994.5
ICD-9-CMThis code signifies a state of profound physical and mental fatigue resulting from overexertion. It represents a non-specific exhaustion that is directly attributable to excessive physical or mental effort, rather than an underlying medical condition.
Apply this code when a patient presents with symptoms of extreme tiredness, weakness, or inability to perform usual activities following strenuous physical activity, prolonged work, or intense mental effort. Documentation should clearly link the exhaustion to an identifiable period of excessive exertion.
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