E73.8

What This Code Means

This code describes lactose intolerance that doesn't fit into the standard categories, such as secondary lactose intolerance caused by other digestive conditions or medications. It represents difficulty digesting lactose (milk sugar) due to causes other than primary lactase deficiency.

Coding Tips

• •Use this code only when the lactose intolerance is not primary lactase deficiency (E73.0), congenital lactase deficiency (E73.1), or lactose intolerance of unspecified type (E73.9)
• •Consider documenting the underlying cause of the secondary lactose intolerance, such as gastroenteritis, celiac disease, or Crohn's disease, as this may warrant additional coding