ICD-10 Code E88.89 – Other specified metabolic disorders (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code E88.89 – Other specified metabolic disorders
What it is
E88.89 is used for a metabolic disorder that is specified in the record but does not fit a more specific ICD-10-CM code. It covers unusual or clearly described metabolic conditions when documentation supports this category.
Clinical signs
Clinical features vary; refer to documentation. Findings may reflect the underlying metabolic problem, but you should code only what the clinician identifies and documents.
When to use this code
Use E88.89 when the provider documents a specific metabolic disorder and no more precise code is available. It is appropriate when the condition is named in the chart but not indexed to another, better-defined metabolic diagnosis. Check documentation if the diagnosis is vague or incomplete.
Do not use for
Do not use this code when a more specific metabolic disorder code is available. Do not use it for suspected conditions, abnormal lab results alone, or nonspecific symptoms without a documented diagnosis.
Coding tip
Look for the exact diagnosed metabolic condition first; use E88.89 only after confirming no more specific code applies.