E51.9

Approximate Synonyms

• Thiamin deficiency

Clinical Information

• A nutritional condition produced by a deficiency of thiamine in the diet, characterized by anorexia, irritability, and weight loss. Later, patients experience weakness, peripheral neuropathy, headache, and tachycardia. In addition to being caused by a poor diet, thiamine deficiency in the United States most commonly occurs as a result of alcoholism, since ethanol interferes with thiamine absorption. In countries relying on polished rice as a dietary staple, beriberi prevalence is very high. from cecil textbook of medicine, 19th ed, p1171)

• Nutritional condition produced by a deficiency of thiamine in the diet, characterized by anorexia, irritability, and weight loss; later, patients experience weakness, peripheral neuropathy, headache, and tachycardia; in addition to being caused by a poor diet, thiamine deficiency in the United States most commonly occurs as a result of alcoholism, since ethanol interferes with thiamine absorption.

Details

• E51.9 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.

• The 2023 edition of ICD-10-CM E51.9 became effective on October 1, 2022.

• This is the American ICD-10-CM version of E51.9 – other international versions of ICD-10 E51.9 may differ.