E71.312

HCC Category Mapping

What This Code Means

A rare genetic disorder where the body cannot properly break down certain fatty acids due to a deficiency in the short chain acyl CoA dehydrogenase enzyme, leading to energy metabolism problems.

Coding Tips

• •This is a specific fatty acid oxidation disorder; ensure documentation clearly states SCAD deficiency to differentiate from other acyl-CoA dehydrogenase deficiencies
• •Verify if this is the primary diagnosis or secondary to another metabolic condition, as this affects code selection and sequencing

Clinical Significance

Short chain acyl-CoA dehydrogenase deficiency (SCAD) affects the final step of mitochondrial fatty acid beta-oxidation for short-chain substrates, though its clinical significance is debated as many identified individuals remain asymptomatic. When symptomatic, patients may present with developmental delay, hypotonia, seizures, or failure to thrive. The variable penetrance makes clinical correlation essential for coding decisions.

Documentation Requirements

• ✓Document confirmatory testing (elevated ethylmalonic acid in urine, elevated C4 on acylcarnitine profile), genetic testing results, clinical symptoms attributable to SCAD deficiency, and whether the patient is symptomatic or identified through screening alone.
• ✓Record any developmental or neurological findings.

Commonly Confused Codes