Other disorders of amino-acid transport

This code signifies various rare inherited metabolic disorders affecting the cellular transport of amino acids, excluding conditions with more specific ICD-10-CM codes. These disorders can lead to an accumulation or deficiency of specific amino acids in tissues and bodily fluids, potentially causing a range of symptoms affecting neurological, renal, and gastrointestinal systems.

Use this code when documentation specifies an amino acid transport disorder that does not have a more precise code, such as Hartnup disease, cystinuria, or lysinuric protein intolerance. This code is appropriate when the physician's diagnosis explicitly states "other disorder of amino-acid transport" or a specific, less common transport defect not otherwise classified.

• Ensure documentation clearly distinguishes this from specific amino acid metabolism disorders (E70-E72.01) or other specified amino acid transport disorders (E72.00, E72.02-E72.04).
• Always review the medical record for specific diagnoses that might allow for a more precise code within the E72.0 subcategory.
• Do not use this code if the documentation points to a specific amino acid metabolism disorder (e.g., phenylketonuria, maple syrup urine disease) which have their own distinct codes.