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  3. Diagnosis Codes in MS-DRG 641 - Miscellaneous Disorders Of Nutrition, Metabolism, Fluids And Electrolytes Without MCC

Diagnosis Codes in MS-DRG 641 - Miscellaneous Disorders Of Nutrition, Metabolism, Fluids And Electrolytes Without MCC

The Medicare Severity Diagnosis-Related Group (MS-DRG) is a patient classification system used to categorize hospital cases based on clinical similarity and expected resource use. MS-DRGs organize all possible principal diagnoses into mutually exclusive groups known as Major Diagnostic Categories (MDCs), which help determine reimbursement under the Medicare Inpatient Prospective Payment System.

This section lists the diagnosis codes included in MS-DRG V42.0: Miscellaneous Disorders of Nutrition, Metabolism, Fluids and Electrolytes without MCC from October 1, 2024, through September 30, 2025.

MS-DRG: 641

MS-DRG Title: Miscellaneous Disorders of Nutrition, Metabolism, Fluids and Electrolytes without MCC

MCD: 10

Relative Weight: 0.7815 Relative Weight
The relative weight of a diagnostic related group determines the reimbursement rate based on the severity of a patient's illness and the associated cost of care during hospitalization.

Geometric LOS: 0.78 Geometric Length of Stay
The geometric mean length of stay (GMLOS) is used by Medicare to calculate the reimbursement for patients whose medical treatment takes a much longer or shorter time than average.

Arithmetic LOS: 2.60 Arithmetic Length of Stay
The average length of stay (ALOS) reflects the average number of days a patient spends in a hospital for each admission.

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    • E15 - Nondiabetic hypoglycemic coma

    • E40 - Kwashiorkor

    • E41 - Nutritional marasmus

    • E42 - Marasmic kwashiorkor

    • E43 - Unspecified severe protein-calorie malnutrition

    • E45 - Retarded development following protein-calorie malnutrition

    • E46 - Unspecified protein-calorie malnutrition

    • E52 - Niacin deficiency [pellagra]

    • E54 - Ascorbic acid deficiency

    • E58 - Dietary calcium deficiency

    • E59 - Dietary selenium deficiency

    • E60 - Dietary zinc deficiency

    • E65 - Localized adiposity

    • E68 - Sequelae of hyperalimentation

  • D81.81 - Biotin-dependent carboxylase deficiency

    • D81.818 - Other biotin-dependent carboxylase deficiency

    • D81.819 - Biotin-dependent carboxylase deficiency, unspecified

  • E16 - Other disorders of pancreatic internal secretion

    • E16.2 - Hypoglycemia, unspecified

  • E20 - Hypoparathyroidism

    • E20.1 - Pseudohypoparathyroidism

  • E44 - Protein-calorie malnutrition of moderate and mild degree

    • E44.0 - Moderate protein-calorie malnutrition

    • E44.1 - Mild protein-calorie malnutrition

  • E50 - Vitamin A deficiency

    • E50.8 - Other manifestations of vitamin A deficiency

    • E50.9 - Vitamin A deficiency, unspecified

  • E51 - Thiamine deficiency

    • E51.2 - Wernicke's encephalopathy

    • E51.8 - Other manifestations of thiamine deficiency

    • E51.9 - Thiamine deficiency, unspecified

  • E51.1 - Beriberi

  • E53 - Deficiency of other B group vitamins

    • E53.0 - Riboflavin deficiency

    • E53.1 - Pyridoxine deficiency

    • E53.8 - Deficiency of other specified B group vitamins

    • E53.9 - Vitamin B deficiency, unspecified

  • E55 - Vitamin D deficiency

    • E55.9 - Vitamin D deficiency, unspecified

  • E56 - Other vitamin deficiencies

    • E56.0 - Deficiency of vitamin E

    • E56.1 - Deficiency of vitamin K

    • E56.8 - Deficiency of other vitamins

    • E56.9 - Vitamin deficiency, unspecified

  • E61 - Deficiency of other nutrient elements

    • E61.0 - Copper deficiency

    • E61.1 - Iron deficiency

    • E61.2 - Magnesium deficiency

    • E61.3 - Manganese deficiency

    • E61.4 - Chromium deficiency

    • E61.5 - Molybdenum deficiency

    • E61.6 - Vanadium deficiency

    • E61.7 - Deficiency of multiple nutrient elements

    • E61.8 - Deficiency of other specified nutrient elements

    • E61.9 - Deficiency of nutrient element, unspecified

  • E63 - Other nutritional deficiencies

    • E63.0 - Essential fatty acid [EFA] deficiency

    • E63.1 - Imbalance of constituents of food intake

    • E63.8 - Other specified nutritional deficiencies

    • E63.9 - Nutritional deficiency, unspecified

  • E64 - Sequelae of malnutrition and other nutritional deficiencies

    • E64.0 - Sequelae of protein-calorie malnutrition

    • E64.1 - Sequelae of vitamin A deficiency

    • E64.2 - Sequelae of vitamin C deficiency

    • E64.8 - Sequelae of other nutritional deficiencies

    • E64.9 - Sequelae of unspecified nutritional deficiency

  • E66 - Overweight and obesity

    • E66.1 - Drug-induced obesity

    • E66.3 - Overweight

    • E66.9 - Obesity, unspecified

  • E66.0 - Obesity due to excess calories

    • E66.01 - Morbid (severe) obesity due to excess calories

    • E66.09 - Other obesity due to excess calories

  • E66.8 - Other obesity

    • E66.89 - Other obesity not elsewhere classified

  • E66.81 - Obesity class

  • E67 - Other hyperalimentation

    • E67.0 - Hypervitaminosis A

    • E67.1 - Hypercarotenemia

    • E67.2 - Megavitamin-B6 syndrome

    • E67.3 - Hypervitaminosis D

    • E67.8 - Other specified hyperalimentation

  • E83.4 - Disorders of magnesium metabolism

    • E83.40 - Disorders of magnesium metabolism, unspecified

    • E83.41 - Hypermagnesemia

    • E83.42 - Hypomagnesemia

    • E83.49 - Other disorders of magnesium metabolism

  • E83.5 - Disorders of calcium metabolism

    • E83.50 - Unspecified disorder of calcium metabolism

    • E83.51 - Hypocalcemia

    • E83.52 - Hypercalcemia

    • E83.59 - Other disorders of calcium metabolism

  • E83.8 - Other disorders of mineral metabolism

    • E83.81 - Hungry bone syndrome

  • E84 - Cystic fibrosis

    • E84.8 - Cystic fibrosis with other manifestations

    • E84.9 - Cystic fibrosis, unspecified

  • E86 - Volume depletion

    • E86.0 - Dehydration

    • E86.1 - Hypovolemia

    • E86.9 - Volume depletion, unspecified

  • E87 - Other disorders of fluid, electrolyte and acid-base balance

    • E87.0 - Hyperosmolality and hypernatremia

    • E87.1 - Hypo-osmolality and hyponatremia

    • E87.3 - Alkalosis

    • E87.4 - Mixed disorder of acid-base balance

    • E87.5 - Hyperkalemia

    • E87.6 - Hypokalemia

    • E87.8 - Other disorders of electrolyte and fluid balance, not elsewhere classified

  • E87.2 - Acidosis

    • E87.20 - Acidosis, unspecified

    • E87.21 - Acute metabolic acidosis

    • E87.22 - Chronic metabolic acidosis

    • E87.29 - Other acidosis

  • E87.7 - Fluid overload

    • E87.70 - Fluid overload, unspecified

    • E87.71 - Transfusion associated circulatory overload

    • E87.79 - Other fluid overload

  • E89 - Postprocedural endocrine and metabolic complications and disorders, not elsewhere classified

    • E89.1 - Postprocedural hypoinsulinemia

  • P92 - Feeding problems of newborn

    • P92.6 - Failure to thrive in newborn

  • R29 - Other symptoms and signs involving the nervous and musculoskeletal systems

  • R62 - Lack of expected normal physiological development in childhood and adults

    • R62.0 - Delayed milestone in childhood

    • R62.7 - Adult failure to thrive

  • R62.5 - Other and unspecified lack of expected normal physiological development in childhood

    • R62.50 - Unspecified lack of expected normal physiological development in childhood

    • R62.51 - Failure to thrive (child)

    • R62.52 - Short stature (child)

    • R62.59 - Other lack of expected normal physiological development in childhood

  • R63 - Symptoms and signs concerning food and fluid intake

    • R63.0 - Anorexia

    • R63.1 - Polydipsia

    • R63.2 - Polyphagia

    • R63.4 - Abnormal weight loss

    • R63.5 - Abnormal weight gain

    • R63.6 - Underweight

    • R63.8 - Other symptoms and signs concerning food and fluid intake

  • R63.3 - Feeding difficulties

    • R63.30 - Feeding difficulties, unspecified

    • R63.31 - Pediatric feeding disorder, acute

    • R63.32 - Pediatric feeding disorder, chronic

    • R63.39 - Other feeding difficulties

  • R73 - Elevated blood glucose level

    • R73.9 - Hyperglycemia, unspecified

  • R73.0 - Abnormal glucose

    • R73.01 - Impaired fasting glucose

    • R73.02 - Impaired glucose tolerance (oral)

    • R73.03 - Prediabetes

    • R73.09 - Other abnormal glucose

  • R82 - Other and unspecified abnormal findings in urine

  • Z68.4 - Body mass index [BMI] 40 or greater, adult

    • Z68.41 - Body mass index [BMI] 40.0-44.9, adult

    • Z68.42 - Body mass index [BMI] 45.0-49.9, adult

    • Z68.43 - Body mass index [BMI] 50.0-59.9, adult

    • Z68.44 - Body mass index [BMI] 60.0-69.9, adult

    • Z68.45 - Body mass index [BMI] 70 or greater, adult

  • Z68.5 - Body mass index [BMI] pediatric

    • Z68.55 - Body mass index [BMI] pediatric, 120% of the 95th percentile for age to less than 140% of the 95th percentile for age

    • Z68.56 - Body mass index [BMI] pediatric, greater than or equal to 140% of the 95th percentile for age