ICD-10 Code E74.09 – Other glycogen storage disease (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code E74.09 – Other glycogen storage disease
What it is
E74.09 identifies a glycogen storage disorder that does not fit a more specific ICD-10-CM category. Use it for inherited problems of glycogen metabolism when the record says “other” or gives an unspecified subtype.
Clinical signs
Clinical features vary; refer to documentation. Common findings in glycogen storage disorders may include hepatomegaly, muscle weakness, exercise intolerance, or hypoglycemia, depending on the specific enzyme defect.
When to use this code
Use this code when the provider documents a glycogen storage disease but does not identify a named type that has its own code. It also fits cases labeled as another or mixed glycogen storage disorder. Review the note carefully and confirm the diagnosis is established, not just suspected.
Do not use for
Do not use E74.09 if the record names a specific glycogen storage disease type with a dedicated code. Avoid it for general abnormal glucose findings, liver disease, or muscle disorders without documentation of glycogen storage disease.
Coding tip
Code the most specific glycogen storage disorder documented; if the subtype is unclear, check documentation before defaulting to E74.09.