ICD-10 Logo
ICDxICD-10 Medical Coding
ICD-10 Logo
ICDxICD-10 Medical Coding
ICD 10 CodesDiagnoses
ICD 10 CodesDiagnoses
ICD-10 Logo
ICDxICD-10 Medical Coding

Comprehensive ICD-10-CM code reference with AI-powered search capabilities.

© 2025 ICD Code Compass. All rights reserved.

Browse

  • All Chapters
  • All Categories
  • Diagnoses

Tools

  • AI Code Search
ICD-10-CM codes are maintained by the CDC and CMS. This tool is for reference purposes only.
v1.0.0
ICD-10 Guide
ICD-10 CodesE74.00

E74.00

Billable

Glycogen storage disease, unspecified

BILLABLE STATUSYes
IMPLEMENTATION DATEOctober 1, 2015
LAST UPDATED09/05/2025

Code Description

ICD-10 E74.00 is a billable code used to indicate a diagnosis of glycogen storage disease, unspecified.

Key Diagnostic Point:

Glycogen storage diseases (GSDs) are a group of inherited metabolic disorders characterized by the abnormal storage and metabolism of glycogen due to enzyme deficiencies. These conditions result from genetic mutations affecting enzymes responsible for glycogen synthesis or breakdown, leading to excessive accumulation of glycogen in various tissues, particularly the liver and muscles. Symptoms can vary widely depending on the specific enzyme deficiency and the type of GSD, but common manifestations include hypoglycemia, hepatomegaly, muscle weakness, and growth retardation. The unspecified designation indicates that the specific type of glycogen storage disease has not been determined or documented. Diagnosis typically involves biochemical tests to assess enzyme activity, genetic testing, and imaging studies to evaluate organ involvement. Management strategies may include dietary modifications, enzyme replacement therapy, and supportive care to address symptoms and prevent complications. Accurate coding is essential for appropriate treatment and reimbursement, as well as for tracking the prevalence and outcomes of these rare metabolic disorders.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Variety of enzyme deficiencies leading to different clinical presentations.
  • Need for precise documentation to specify the type of glycogen storage disease.
  • Potential overlap with other metabolic disorders, complicating diagnosis.
  • Variability in symptoms and severity among patients.

Audit Risk Factors

  • Inadequate documentation of enzyme deficiencies.
  • Failure to specify the type of glycogen storage disease.
  • Misclassification of symptoms related to other metabolic disorders.
  • Lack of supporting laboratory results or genetic testing.

Specialty Focus

Medical Specialties

Pediatrics

Documentation Requirements

Detailed family history, growth parameters, and developmental milestones.

Common Clinical Scenarios

Diagnosis of GSD in infants with hypoglycemia and hepatomegaly.

Billing Considerations

Consideration of dietary management and monitoring of growth and development.

Genetics

Documentation Requirements

Genetic testing results and family pedigree analysis.

Common Clinical Scenarios

Evaluation of patients with suspected hereditary metabolic disorders.

Billing Considerations

Importance of genetic counseling for affected families.

Coding Guidelines

Inclusion Criteria

Use E74.00 When
  • Follow ICD
  • CM guidelines for coding metabolic disorders
  • Ensure that documentation supports the diagnosis of glycogen storage disease and that any specific enzyme deficiencies are noted when applicable
  • Use E74
  • 00 when the specific type is not documented

Exclusion Criteria

Do NOT use E74.00 When
No specific exclusions found.

Related ICD-10 Codes

Related CPT Codes

81401CPT Code

Genetic testing for glycogen storage disease

Clinical Scenario

Used when genetic testing is performed to confirm a diagnosis of glycogen storage disease.

Documentation Requirements

Documentation of clinical indications for genetic testing and results.

Specialty Considerations

Genetic counseling may be necessary for families.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for more specific coding of metabolic disorders, improving the ability to track and manage glycogen storage diseases. However, the unspecified nature of E74.00 may lead to challenges in accurately capturing the prevalence of specific types.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of metabolic disorders, improving the ability to track and manage glycogen storage diseases. However, the unspecified nature of E74.00 may lead to challenges in accurately capturing the prevalence of specific types.

Reimbursement & Billing Impact

The transition to ICD-10 has allowed for more specific coding of metabolic disorders, improving the ability to track and manage glycogen storage diseases. However, the unspecified nature of E74.00 may lead to challenges in accurately capturing the prevalence of specific types.

Resources

Clinical References

  • •
    National Organization for Rare Disorders (NORD)

Coding & Billing References

  • •
    National Organization for Rare Disorders (NORD)

Frequently Asked Questions

What is the significance of using E74.00?

E74.00 is used when the specific type of glycogen storage disease is not documented. It is important for capturing cases where the diagnosis is suspected but not confirmed, allowing for appropriate management and tracking.