What is the ICD-10-CM code for hypomagnesemia?

The primary ICD-10-CM code for hypomagnesemia is E83.42 (Hypomagnesemia). There are 8 billable hypomagnesemia codes in FY2027, covering different types and underlying causes.

How many ICD-10-CM codes are there for hypomagnesemia?

There are 9 ICD-10-CM codes for hypomagnesemia in the FY2027 tabular list, of which 8 are billable. These codes fall under Chapter 4 of the ICD-10-CM classification.

Which chapter covers hypomagnesemia in ICD-10-CM?

Hypomagnesemia codes are classified in Chapter 4 of the ICD-10-CM tabular list: E00–E89 (Endocrine, Nutritional and Metabolic Diseases).

Hypomagnesemia ICD-10-CM codes

ICD-10-CM codes for hypomagnesemia and other disorders of magnesium metabolism, including hypermagnesemia and neonatal hypomagnesemia.

9 codes, 8 billable. FY2027, valid from October 1, 2026. In chapter 4: Endocrine, Nutritional and Metabolic Diseases.

How to code Hypomagnesemia

E83.42 is hypomagnesemia (low magnesium) in children and adults. E83.41 is hypermagnesemia, E83.49 is other disorders of magnesium metabolism, and E83.40 is unspecified. Neonatal hypomagnesemia is P71.2.

Low magnesium often occurs with other electrolyte problems, which are coded separately when documented, such as hypocalcemia E83.51 and hypokalemia E87.6. When hypomagnesemia is an adverse effect of a properly taken drug, add the adverse effect code, for example T47.1X5A for a proton pump inhibitor.

All Hypomagnesemia codes

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