P71.2 Neonatal hypomagnesemia

Billable ICD-10-CM code, FY2026. Acts as a Complication or Comorbidity (CC) as a secondary diagnosis.

MS-DRG index

Defines the logic of DRG(s) 791 in MDC 15.

Approximate ICD-9-CM (GEMs)

• 775.4 Hypocalcemia and hypomagnesemia of newborn (approximate)

Code annotations containing back-references to P71.2

Back-references to P71.2

• Type 1 Excludes: R79.0 Abnormal level of blood mineral ("neonatal hypomagnesemia (P71.2)")

Back-references to P71

• Type 2 Excludes: P00 Newborn affected by maternal conditions that may be unrelated to present pregnancy ("newborn affected by maternal endocrine and metabolic disorders (P70-P74)")

Diagnosis Index entries for P71.2

• Hypomagnesemia › neonatal

Nearby codes

• P71 Transitory neonatal disorders of calcium and magnesium metabolism
• P71.0 Cow's milk hypocalcemia in newborn
• P71.1 Other neonatal hypocalcemia
• P71.2 Neonatal hypomagnesemia (this code)
• P71.3 Neonatal tetany without calcium or magnesium deficiency
• P71.4 Transitory neonatal hypoparathyroidism
• P71.8 Other transitory neonatal disorders of calcium and magnesium metabolism
• P71.9 Transitory neonatal disorder of calcium and magnesium metabolism, unspecified