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E73.0

Billable

Congenital lactase deficiency

This code does not map to an HCC category in any model (V28, V24, ESRD, RxHCC).

What This Code Means

A rare inherited condition where a person is born without the ability to produce lactase, the enzyme needed to digest milk sugar (lactose).

Coding Tips

  • •This is a congenital condition present from birth; distinguish from acquired lactose intolerance that develops later in life
  • •Document family history if available, as this is an inherited genetic disorder

Code Hierarchy

└E73Lactose intolerance└E73.0Congenital lactase deficiency
└E73.0Congenital lactase deficiency

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