A proposed revision of current ICD-9-CM malnutrition code definitions

Journal of the American Dietetic Association
W S SwailsB R Bistrian

Abstract

Protein-energy malnutrition (PEM) is as common today in adult medical and surgical patients as it was when it was first identified more than 25 years ago. Under the current diagnosis-related group (DRG) payment system, malnutrition is considered a comorbidity or complicating condition. Thus, the identification and coding of malnutrition through the use of the International Classification of Diseases, ninth edition, Clinical Modification (ICD-9-CM) malnutrition codes can potentially change a patient's DRG and subsequently increase the amount of reimbursement a hospital receives. Unfortunately, the definitions for the current ICD-9-CM malnutrition diagnosis codes were developed principally in relation to clinical syndromes of primary PEM seen in pediatric age groups in less developed countries, rather than in relation to syndromes seen in hospitalized adult patients in industrialized societies. This discrepancy often leads to confusion and inconsistency when institutions attempt to code adult patients for malnutrition. Furthermore, inaccurate coding can result in inadequate reimbursement or rejection of a claim. Clearly, a separate description of the different forms of PEM seen in adults is needed not only for optimal application...Continue Reading

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