263.0
ICD-9-CMThis code signifies a nutritional deficiency state characterized by a noticeable but not severe depletion of body stores, often manifesting as weight loss, muscle wasting, or impaired immune function. It indicates a suboptimal nutritional status that is more significant than mild malnutrition but does not yet reach the severity of severe malnutrition.
Apply this code when documentation indicates a patient is experiencing malnutrition that is explicitly described as "moderate" or when clinical indicators (e.g., BMI between 17-18.4 kg/m², moderate weight loss, or laboratory findings) support a moderate degree of nutritional compromise. This is often seen in chronic illnesses, post-surgical recovery, or in elderly patients with inadequate dietary intake.
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