E71.30

HCC Category Mapping

What This Code Means

A metabolic disorder affecting how the body breaks down and uses fatty acids for energy, but the specific type has not been identified.

Coding Tips

• •This is an unspecified code; use only when the specific fatty acid metabolism disorder is not documented
• •If a specific disorder like MCAD deficiency is documented, use the appropriate specific code instead

Clinical Significance

This unspecified code indicates a fatty acid metabolism disorder where the specific type has not been identified, encompassing a broad range of potential defects in fatty acid oxidation, transport, or utilization. Fatty acid metabolism disorders can cause hypoketotic hypoglycemia, cardiomyopathy, and rhabdomyolysis, particularly during metabolic stress. Definitive diagnosis through enzyme studies or genetic testing is essential for appropriate management.

Documentation Requirements

• ✓Document clinical symptoms suggesting fatty acid metabolism disorder, acylcarnitine profile results, any genetic testing performed or pending, and reason for unspecified status.
• ✓Record any episodes of metabolic decompensation and current dietary management.

Commonly Confused Codes