ICD-10 Code E74.89 – Other specified disorders of carbohydrate metabolism (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code E74.89 – Other specified disorders of carbohydrate metabolism
What it is
E74.89 identifies a carbohydrate metabolism disorder that does not fit a more specific ICD-10-CM code. Use it when documentation names a distinct inherited or acquired metabolic problem involving carbohydrate processing, but no better code is available.
Clinical signs
Clinical features vary; refer to documentation. Findings may include recurrent metabolic symptoms, exercise intolerance, or other signs of impaired carbohydrate handling, depending on the specific disorder described by the clinician.
When to use this code
Use this code when the provider documents “other specified” carbohydrate metabolism disorder, or names a condition that is clearly metabolic but not indexed to a more specific code. It is also appropriate when the chart supports a carbohydrate metabolism disorder and the exact subtype is not coded elsewhere. Check documentation if the diagnosis is vague.
Do not use for
Do not use E74.89 when a more specific carbohydrate metabolism code is documented or confirmed. Avoid it for nonspecific symptoms alone, such as abdominal pain or fatigue, without a stated metabolic diagnosis.
Coding tip
Code the exact disorder name first, then verify whether ICD-10-CM offers a more specific E74 code before defaulting to E74.89.