E72.09

HCC Category Mapping

What This Code Means

Other inherited disorders affecting the transport of amino acids across cell membranes that are not specifically classified elsewhere.

Coding Tips

• •Use this code only when a specific amino-acid transport disorder is identified but does not match codes E72.01-E72.04
• •Document the specific disorder name and clinical findings to support the diagnosis

Clinical Significance

This code captures amino acid transport disorders not classified in more specific E72.0x subcategories, including rare conditions like iminoglycinuria, dicarboxylic aminoaciduria, and other identified transport defects. These conditions result from mutations in specific membrane transport proteins, leading to abnormal amino acid handling in the kidneys or intestines. Clinical significance varies widely from benign biochemical variants to disorders requiring active management.

Documentation Requirements

• ✓Document the specific amino acid transport disorder identified, urine and plasma amino acid analysis results, clinical significance of the finding, and management plan if warranted.
• ✓Record why a more specific code (E72.01-E72.04) does not apply.

Commonly Confused Codes