Hypomagnesemia ICD-10-CM Codes | 2023

Hypomagnesemia ICD-10-CM Codes | 2023

Read this short guide to learn about Hypomagnesemia ICD codes you can use!

By Ashleigh Knowles on Jul 16, 2025.

Fact Checked by RJ Gumban.

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What Hypomagnesemia ICD-10 codes can I use?

If you’re looking for Hypomagnesemia ICD codes, here are five that you can use:

  • E83.42 - Hypomagnesemia

This ICD-10 code is meant to be used on a patient confirmed to have Hypomagnesemia. This is the main ICD-10 code you’re looking for.

  • P71.2 - Neonatal hypomagnesemia

This is the same as Item 1, but this time, it’s meant to be used on a newborn patient. Please note that the neonatal period of a newborn is the first four weeks of their life after being birthed.

  • T50.905A - Adverse effect of unspecified drugs, medicaments and biological substances, initial encounter

This ICD-10 code is meant to be used on a patient confirmed to be dealing with an adverse effect of a particular drug, medicament, or biological substance. If your patient has Hypomagnesemia due to any of these, you can use this ICD-10 code.

This comes with the initial encounter label, which means the patient is receiving active care for it.

  • T50.905D - Adverse effect of unspecified drugs, medicaments and biological substances, subsequent encounter

This is the same as Item 3, but this time, it comes with a subsequent encounter label. This means they are recovering from the problem and still receiving active/routine care for it.

  • T50.905S - Adverse effect of unspecified drugs, medicaments and biological substances, sequela

This is the same as Item 3, but this time, it comes with a sequela label, which means they are dealing with the aftereffects of the problem.

Given this, this ICD-10 code should be accompanied by two other ICD-10 codes, one of which should designate the sequela’s nature, while the other should describe the sequela (meaning its effects).

Are these Hypomagnesemia ICD-10 codes billable?

Yes. These ICD-10 codes for Hypomagnesemia are valid and billable.

Clinical information about Hypomagnesemia:

Hypomagnesemia is the medical term for magnesium deficiency. A person with Hypomagnesemia has less than the normal amount of magnesium they’re supposed to have in their body.

Magnesium is a type of electrolyte that is used for regulating blood pressure, blood sugar levels, cholesterol production, bone formation, muscle function, and nerve function. If the amount of magnesium present dips below the normal amount, a person might have the following symptoms:

  • They will feel weak and tired
  • There might be abnormal movements in their eyes
  • There might be tremors, muscle spasms, and numbness
  • Their muscles might become stiff and start jerking around randomly
  • They might start having irregular heartbeats
  • They might feel delirious

Synonyms include:

  • Drug-induced hypomagnesemia
  • Autosomal dominant primary hypomagnesemia with hypocalciuria
  • Familial hypomagnesemia-hypercalciuria
  • Familial primary hypomagnesemia with normocalciuria
  • Hypomagnesemia co-occurrent with normocalciuria
  • Hypomagnesemia with secondary hypocalcemia
  • Primary hypomagnesemia
  • Secondary hypomagnesemia
  • Hypomagnesemia ICD 10
  • ICD 10 hypomagnesemia
  • ICD 10 code for hypomagnesemia
  • ICD 10 code hypomagnesemia
  • ICD 10 for hypomagnesemia
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