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ICD-10 Guide
ICD-10 CodesE74.8

E74.8

Billable

Other specified disorders of carbohydrate metabolism

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

Code Description

ICD-10 E74.8 is a billable code used to indicate a diagnosis of other specified disorders of carbohydrate metabolism.

Key Diagnostic Point:

E74.8 encompasses a variety of metabolic disorders that affect carbohydrate metabolism, which can lead to abnormal glucose levels and other metabolic disturbances. These disorders may include conditions such as galactosemia, glycogen storage diseases, and other enzyme deficiencies that disrupt normal carbohydrate processing. Patients may present with symptoms ranging from hypoglycemia to failure to thrive, depending on the specific disorder. Diagnosis often involves biochemical tests to assess enzyme activity, genetic testing for inherited conditions, and dietary management to control symptoms. The complexity of these disorders lies in their varied presentations and the need for a multidisciplinary approach to management, including dietary modifications and potential enzyme replacement therapies.

Code Complexity Analysis

Complexity Rating: High

High Complexity

Complexity Factors

  • Variety of underlying genetic conditions
  • Need for biochemical testing and interpretation
  • Potential for overlapping symptoms with other metabolic disorders
  • Variability in treatment approaches based on specific disorder

Audit Risk Factors

  • Insufficient documentation of specific disorder
  • Lack of clarity on biochemical test results
  • Inadequate patient history related to dietary management
  • Failure to document multidisciplinary care

Specialty Focus

Medical Specialties

Pediatrics

Documentation Requirements

Detailed family history, growth parameters, and dietary intake assessments.

Common Clinical Scenarios

Diagnosis of galactosemia in newborns, management of glycogen storage diseases in children.

Billing Considerations

Pediatric patients may require ongoing monitoring for growth and development, necessitating comprehensive documentation.

Endocrinology

Documentation Requirements

Thorough metabolic evaluations, including glucose tolerance tests and hormone level assessments.

Common Clinical Scenarios

Management of adult patients with inherited metabolic disorders, including dietary interventions.

Billing Considerations

Endocrinologists must document the metabolic implications of carbohydrate disorders and their management strategies.

Coding Guidelines

Inclusion Criteria

Use E74.8 When
  • According to ICD
  • 10 guidelines, E74
  • 8 should be used when a specific disorder of carbohydrate metabolism is not classified elsewhere
  • Coders must ensure that the documentation supports the diagnosis and that all relevant tests and treatments are recorded

Exclusion Criteria

Do NOT use E74.8 When
No specific exclusions found.

Related ICD-10 Codes

Related CPT Codes

82947CPT Code

Glucose, blood test

Clinical Scenario

Used to monitor glucose levels in patients with carbohydrate metabolism disorders.

Documentation Requirements

Document the reason for the test and any relevant clinical findings.

Specialty Considerations

Endocrinologists should ensure that glucose testing is linked to the diagnosis of a carbohydrate metabolism disorder.

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 accuracy of diagnoses and treatment plans. E74.8 provides a means to capture less common disorders that may have previously been underrepresented in ICD-9.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of metabolic disorders, improving the accuracy of diagnoses and treatment plans. E74.8 provides a means to capture less common disorders that may have previously been underrepresented in ICD-9.

Reimbursement & Billing Impact

The transition to ICD-10 has allowed for more specific coding of metabolic disorders, improving the accuracy of diagnoses and treatment plans. E74.8 provides a means to capture less common disorders that may have previously been underrepresented in ICD-9.

Resources

Clinical References

  • •
    ICD-10-CM Official Guidelines for Coding and Reporting

Coding & Billing References

  • •
    ICD-10-CM Official Guidelines for Coding and Reporting

Frequently Asked Questions

What types of conditions fall under E74.8?

E74.8 includes various unspecified disorders of carbohydrate metabolism, such as rare enzyme deficiencies and genetic metabolic conditions that do not have a specific code.