783.1
ICD-9-CMThis code signifies an increase in body weight that is considered outside the normal physiological range or is medically concerning. It represents a symptom or an abnormal finding rather than a specific disease. This gain can be acute or chronic and may be associated with various underlying medical conditions or lifestyle factors.
Apply this code when documentation indicates a patient has experienced an abnormal or significant weight gain without a more specific diagnosis for the cause. This is appropriate for conditions such as unexplained weight gain, fluid retention leading to weight increase, or as a secondary diagnosis when the primary cause is being investigated. Supporting documentation should include a recorded weight increase and the clinician's assessment of it as abnormal.
AI-generated reference — verify against official guidelines