Anemias due to disorders of glutathione metabolism

This code signifies a group of hemolytic anemias resulting from inherited deficiencies in enzymes involved in the glutathione metabolic pathway, such as glutathione synthetase deficiency or gamma-glutamylcysteine synthetase deficiency. These enzymatic defects impair the red blood cell's ability to protect itself from oxidative stress, leading to premature destruction of erythrocytes.

Assign this code for patients diagnosed with a hemolytic anemia specifically attributed to a disorder of glutathione metabolism. Documentation should clearly state the enzymatic deficiency or a confirmed diagnosis linking the anemia to this metabolic pathway. This code is appropriate when the underlying cause of the anemia is identified as a defect in glutathione synthesis or recycling.

• Differentiate from other hereditary hemolytic anemias, such as G6PD deficiency (282.2), which has its own specific code.
• Ensure documentation specifies "glutathione metabolism" rather than a general "enzyme deficiency."
• Consider sequencing this code as the primary diagnosis if it is the reason for the encounter, followed by any associated symptoms or complications.