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    OpenPayerBilling CodesMalnutritionICD-10-CM e41-nutritional-marasmus
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    ICD-10-CM Code For Nutritional Marasmus: Group Overview

    The International Classification of Diseases, Tenth Revision, Clinical Modification (ICD-10-CM) code group E41 includes diagnoses of severe protein-energy malnutrition characterized by extreme wasting and loss of subcutaneous fat, commonly referred to as nutritional marasmus. These ICD-10-CM diagnosis codes are used to document patients with severe generalized malnutrition, capturing disease severity and systemic nutritional compromise. Accurate coding within the ICD-10-CM E41 group supports proper claim adjudication and complete clinical documentation for appropriate reimbursement.

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    ICD-10-CM E41: Nutritional Marasmus Overview

    The ICD-10-CM E41 group represents severe protein-energy malnutrition known as nutritional marasmus, characterized by marked wasting and loss of adipose tissue. These diagnoses target systemic nutritional deficiency affecting growth, immune function, and multiple organ systems. Accurate coding is important to reflect clinical severity and support appropriate reimbursement and resource allocation.

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    When to Use

    Use a code from this group when a patient has clinical findings consistent with severe protein-energy malnutrition and nutritional marasmus documented by the clinician. Codes from this group are appropriate when the severity of malnutrition is specified and impacts clinical management or resource use.

    ICD-10-CM Codes

    1 rows

    ICD-10-CM CodeDescription
    E41Nutritional marasmus

    DRG Codes

    4 rows

    DRG CodeDescription
    640Miscellaneous Disorders of Nutrition, Metabolism, Fluids and Electrolytes with MCC
    641Miscellaneous Disorders of Nutrition, Metabolism, Fluids and Electrolytes without MCC
    791Prematurity with Major Problems
    793Full Term Neonate with Major Problems

    Typical Clinical Scenarios

    • An infant or young child with severe failure to thrive who presents to the emergency department with lethargy, hypothermia, and signs of profound protein-calorie malnutrition after prolonged inadequate intake due to neglect or lack of access to food. Caregivers report progressive weight loss, muscle wasting, and sparse subcutaneous fat over weeks to months; clinicians assign a diagnosis reflecting severe wasting consistent with nutritional marasmus because physical findings and growth parameters indicate chronic energy deficiency. Typical codes: E41
    • An older adult with advanced dementia living in a long-term care facility is evaluated for progressive weight loss, muscle wasting, and minimal food intake over months despite attempts at feeding assistance; the resident has hypotension, hypothermia, and recurrent infections related to poor nutritional status. The care team documents generalized severe wasting from prolonged inadequate caloric intake and assigns the diagnosis to capture the severe chronic malnutrition that complicates the primary neurocognitive disorder. Typical codes: E41
    • A patient with a history of chronic alcoholism presents to clinic with profound cachexia, marked loss of muscle mass, and very low body weight after months of poor oral intake and malabsorption; laboratory evaluation shows electrolyte disturbances and micronutrient deficiencies. Because the clinical picture demonstrates severe protein–calorie deficiency with generalized wasting attributable to prolonged inadequate intake and malnutrition, the diagnosis reflecting nutritional marasmus is assigned as a comorbid condition affecting management. Typical codes: E41

    Related Codes

    E40-KWASHIORKOR

    ICD-10-CM Code For Kwashiorkor: Group Overview

    E42-MARASMIC-KWASHIORKOR

    ICD-10-CM Code For Marasmic Kwashiorkor: Group Overview

    E43-UNSPECIFIED-SEVERE-PROTEIN-CALORIE-MALNUTRITION

    ICD-10-CM Code For Unspecified Severe Protein-Calorie Malnutrition: Group Overview

    E44-PROTEIN-CALORIE-MALNUTRITION

    ICD-10-CM Code For Protein-Calorie Malnutrition Of Moderate And Mild Degree: Group Overview

    E45-RETARDED-DEVELOPMENT-FOLLOWING-PROTEIN-CALORIE-MALNUTRITION

    ICD-10-CM Code For Retarded Development Following Protein Calorie Malnutrition: Group Overview

    E46-UNSPECIFIED-PROTEIN-CALORIE-MALNUTRITION

    ICD-10-CM Code For Unspecified Protein-Calorie Malnutrition: Group Overview

    Frequently Asked Questions

    References

    1. 1.CPT® Codes and Descriptions. AAPC. Retrieved Aug 11, 2026.Maintains the CPT code set's official descriptions and guidelines, licensed from the American Medical Association, used as the definitional source for CPT codes on this page.
    2. 2.HCPCS Quarterly Update. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's quarterly release of HCPCS Level II codes and short/long descriptors, the source for HCPCS code definitions and update history.
    3. 3.ICD-10-CM Full Code List. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's complete ICD-10-CM diagnosis code list, used to cross-reference diagnosis codes associated with this procedure or service.
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