Abnormal findings of blood amino-acid level

This code signifies an elevated or decreased concentration of amino acids in a blood sample that is not attributed to a specific metabolic disorder. It indicates an abnormal laboratory result requiring further investigation or monitoring. This finding may be incidental or suggest an underlying, unspecified physiological perturbation.

Apply this code when documentation indicates an abnormal blood amino acid level without a definitive diagnosis of an amino acid metabolism disorder (e.g., phenylketonuria, maple syrup urine disease). This is appropriate for initial abnormal findings or when the cause is still under investigation. Supporting documentation includes laboratory reports showing out-of-range amino acid levels.

• Do not use this code if a specific disorder of amino-acid metabolism (E70-E72) has been diagnosed; these conditions are Excludes1.
• Sequence this code as a secondary diagnosis if the abnormal finding is a manifestation of an underlying, more specific condition.
• Ensure the medical record clearly states the abnormality and that a definitive metabolic disorder has not been identified.