ICD-10-CM Tabular Index · Chapter 4 · FY 2026 E74

Other disorders of carbohydrate metabolism (E74) ICD-10-CM

The E74 code range covers other disorders of carbohydrate metabolism with 32 ICD-10-CM diagnosis codes. 24 of them are billable and valid for claim submission in fiscal year 2026, and the category headers group them but cannot themselves be billed.

✓ Built from the official CMS FY 2026 datasetEffective Oct 1, 2025 – Sep 30, 2026
32
Diagnosis Codes
24
Billable Codes
E74
Code Range
E70–E88
Parent Section

Type 1 Excludes

A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.

ICD-10-CM

Codes in the E74 Range 32 codes · 24 billable

32 of 32 shown
  • E74 Other disorders of carbohydrate metabolismNon-billable
  • E74.0 Glycogen storage diseaseNon-billable
  • E74.00 Glycogen storage disease, unspecified
  • E74.01 von Gierke disease
  • E74.02 Pompe disease
  • E74.03 Cori disease
  • E74.04 McArdle disease
  • E74.05 Lysosome-associated membrane protein 2 [LAMP2] deficiency
  • E74.09 Other glycogen storage disease
  • E74.1 Disorders of fructose metabolismNon-billable
  • E74.10 Disorder of fructose metabolism, unspecified
  • E74.11 Essential fructosuria
  • E74.12 Hereditary fructose intolerance
  • E74.19 Other disorders of fructose metabolism
  • E74.2 Disorders of galactose metabolismNon-billable
  • E74.20 Disorders of galactose metabolism, unspecified
  • E74.21 Galactosemia
  • E74.29 Other disorders of galactose metabolism
  • E74.3 Other disorders of intestinal carbohydrate absorptionNon-billable
  • E74.31 Sucrase-isomaltase deficiency
  • E74.39 Other disorders of intestinal carbohydrate absorption
  • E74.4 Disorders of pyruvate metabolism and gluconeogenesis
  • E74.8 Other specified disorders of carbohydrate metabolismNon-billable
  • E74.81 Disorders of glucose transport, not elsewhere classifiedNon-billable
  • E74.810 Glucose transporter protein type 1 deficiency
  • E74.818 Other disorders of glucose transport
  • E74.819 Disorders of glucose transport, unspecified
  • E74.82 Disorders of citrate metabolismNon-billable
  • E74.820 SLC13A5 Citrate Transporter Disorder
  • E74.829 Other disorders of citrate metabolism
  • E74.89 Other specified disorders of carbohydrate metabolism
  • E74.9 Disorder of carbohydrate metabolism, unspecified

Clinical Terms in This Code Range

Definitions from the National Library of Medicine for conditions coded in the E74 range.

Fanconi Syndrome

A hereditary or acquired form of generalized dysfunction of the PROXIMAL KIDNEY TUBULE without primary involvement of the KIDNEY GLOMERULUS. It is usually characterized by the tubular wasting of nutrients and salts (GLUCOSE; AMINO ACIDS; PHOSPHATES; and BICARBONATES) resulting in HYPOKALEMIA; ACIDOSIS; HYPERCALCIURIA; and PROTEINURIA.

Glycogen Storage Disease

A group of inherited metabolic disorders involving the enzymes responsible for the synthesis and degradation of glycogen. In some patients, prominent liver involvement is presented. In others, more generalized storage of glycogen occurs, sometimes with prominent cardiac involvement.

Glycogen Storage Disease Type I

An autosomal recessive disease in which gene expression of glucose-6-phosphatase is absent, resulting in hypoglycemia due to lack of glucose production. Accumulation of glycogen in liver and kidney leads to organomegaly, particularly massive hepatomegaly. Increased concentrations of lactic acid and hyperlipidemia appear in the plasma. Clinical gout often appears in early childhood.

Glycogen Storage Disease Type II

An autosomal recessively inherited glycogen storage disease caused by GLUCAN 1,4-ALPHA-GLUCOSIDASE deficiency. Large amounts of GLYCOGEN accumulate in the LYSOSOMES of skeletal muscle (MUSCLE, SKELETAL); HEART; LIVER; SPINAL CORD; and BRAIN. Three forms have been described: infantile, childhood, and adult. The infantile form is fatal in infancy and presents with hypotonia and a hypertrophic cardiomyopathy (CARDIOMYOPATHY, HYPERTROPHIC). The childhood form usually presents in the second year of life with proximal weakness and respiratory symptoms. The adult form consists of a slowly progressive proximal myopathy. (From Muscle Nerve 1995;3:S61-9; Menkes, Textbook of Child Neurology, 5th ed, pp73-4)

Glycogen Storage Disease Type IIb

An X-linked dominant multisystem disorder resulting in cardiomyopathy, myopathy and INTELLECTUAL DISABILITY. It is caused by mutation in the gene encoding LYSOSOMAL-ASSOCIATED MEMBRANE PROTEIN 2.

Glycogen Storage Disease Type III

An autosomal recessive metabolic disorder due to deficient expression of amylo-1,6-glucosidase (one part of the glycogen debranching enzyme system). The clinical course of the disease is similar to that of glycogen storage disease type I, but milder. Massive hepatomegaly, which is present in young children, diminishes and occasionally disappears with age. Levels of glycogen with short outer branches are elevated in muscle, liver, and erythrocytes. Six subgroups have been identified, with subgroups Type IIIa and Type IIIb being the most prevalent.

Glycogen Storage Disease Type IV

An autosomal recessive metabolic disorder due to a deficiency in expression of glycogen branching enzyme 1 (alpha-1,4-glucan-6-alpha-glucosyltransferase), resulting in an accumulation of abnormal GLYCOGEN with long outer branches. Clinical features are MUSCLE HYPOTONIA and CIRRHOSIS. Death from liver disease usually occurs before age 2.

Glycogen Storage Disease Type V

Glycogenosis due to muscle phosphorylase deficiency. Characterized by painful cramps following sustained exercise.

Glycogen Storage Disease Type VI

A hepatic GLYCOGEN STORAGE DISEASE in which there is an apparent deficiency of hepatic phosphorylase (GLYCOGEN PHOSPHORYLASE, LIVER FORM) activity.

Glycogen Storage Disease Type VII

An autosomal recessive glycogen storage disease in which there is deficient expression of 6-phosphofructose 1-kinase in muscle (PHOSPHOFRUCTOKINASE-1, MUSCLE TYPE) resulting in abnormal deposition of glycogen in muscle tissue. These patients have severe congenital muscular dystrophy and are exercise intolerant.

Glycogen Storage Disease Type VIII

An x-linked recessive hepatic glycogen storage disease resulting from lack of expression of phosphorylase-b-kinase activity. Symptoms are relatively mild; hepatomegaly, increased liver glycogen, and decreased leukocyte phosphorylase are present. Liver shrinkage occurs in response to glucagon.

Glycosuria

The appearance of an abnormally large amount of GLUCOSE in the urine, such as more than 500 mg/day in adults. It can be due to HYPERGLYCEMIA or genetic defects in renal reabsorption (RENAL GLYCOSURIA).

Glycosuria, Renal

An autosomal inherited disorder due to defective reabsorption of GLUCOSE by the PROXIMAL RENAL TUBULES. The urinary loss of glucose can reach beyond 50 g/day. It is attributed to the mutations in the SODIUM-GLUCOSE TRANSPORTER 2 encoded by the SLC5A2 gene.

About the E74 Code Range

The ICD-10 code section E74 covers various other disorders of carbohydrate metabolism, including specific glycogen storage diseases, and problems with fructose, galactose, and carbohydrate absorption. These codes help healthcare providers identify and classify uncommon metabolic diseases affecting how the body processes carbohydrates.

This section includes codes like E74.0 for glycogen storage disease, with subtypes such as E74.01 von Gierke disease (also known as glucose-6-phosphatase deficiency) and E74.02 Pompe disease, characterized by acid maltase deficiency. For fructose metabolism, codes range from unspecified disorders (E74.10) to hereditary fructose intolerance (E74.12). Galactose metabolism disorders, including classic galactosemia, are coded under E74.2. Intestinal carbohydrate absorption issues like sucrase-isomaltase deficiency are found under E74.31. Other important codes address disorders of glucose transport (E74.81) and pyruvate metabolism (E74.4). These distinctions assist in selecting appropriate ICD-10 codes for precise documentation, including conditions commonly referred to by synonyms such as "glycogenosis," "fructosuria," and "glucose transporter protein type 1 deficiency."

Questions About This Page

How many billable codes are in the E74 range?

Of the 32 codes in this range, 24 are billable and valid for claim submission from October 1, 2025 through September 30, 2026. Category header codes group them but cannot be reported on claims.

What does the E74 range classify?

The range classifies other disorders of carbohydrate metabolism. Each code links to its own reference page with billing status, MS-DRG grouping, coding notes, and clinical information.

Related References

Source: CMS FY 2026 ICD-10-CM Tabular List and order file, effective October 1, 2025 through September 30, 2026.