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E83.42

Billable

Hypomagnesemia

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

What This Code Means

Abnormally low levels of magnesium in the blood, which can cause muscle cramps, weakness, and irregular heartbeat.

Coding Tips

  • •Confirm lab values show low magnesium (typically <1.7 mg/dL) before coding
  • •Document contributing factors such as diuretic use, diarrhea, or malnutrition

Code Hierarchy

└E83Disorders of mineral metabolism└E83.4Disorders of magnesium metabolism└E83.42Hypomagnesemia
└E83.42Hypomagnesemia

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