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Turn to 271.8 for 3-MCC Diagnosis

Published on Sat Mar 27, 2010

Question: What is the best diagnosis for 3-MCC (3-Methylcrotonyl-Coenzyme A carboxylase deficiency)? Arizona Subscriber Answer: Your best choice is 271.8 (Other specified disorders of carbohydrate transport and metabolism). 3-MCC is an uncommon, inherited disorder in which the body is unable to process certain proteins correctly because of a shortage of leucine. Infants with 3-MCC deficiency appear normal at birth but develop signs and symptoms in infancy or early childhood. Characteristic features of 3-MCC include feeding difficulties, recurrent episodes of vomiting or diarrhea, excessive tiredness, and weak muscle tone.
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