Transitory neonatal disorders of calcium and magnesium metabolism (P71) ICD-10-CM
The P71 code range covers transitory neonatal disorders of calcium and magnesium metabolism with 8 ICD-10-CM diagnosis codes. 7 of them are billable and valid for claim submission in fiscal year 2027, and the category headers group them but cannot themselves be billed.
Codes in the P71 Range 8 codes · 7 billable
- P71 Transitory neonatal disorders of calcium and magnesium metabolismNon-billable
- P71.0 Cow's milk hypocalcemia in newborn
- P71.1 Other neonatal hypocalcemia
- P71.2 Neonatal hypomagnesemia
- 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
About the P71 Code Range
Newborns can have temporary problems with how their bodies process calcium and magnesium.
The subdivisions separate low calcium linked to cow's milk from other low calcium, and identify low magnesium separately. P71.3 identifies tetany when neither calcium nor magnesium is deficient. P71.4 identifies temporary low parathyroid function. The remaining subdivisions describe other temporary calcium and magnesium metabolism disorders or an unspecified disorder.
Questions About This Page
How many billable codes are in the P71 range?
Of the 8 codes in this range, 7 are billable and valid for claim submission from October 1, 2026 through September 30, 2027. Category header codes group them but cannot be reported on claims.
What does the P71 range classify?
The range classifies transitory neonatal disorders of calcium and magnesium metabolism. Each code links to its own reference page with billing status, MS-DRG grouping, coding notes, and clinical information.
Related References
Source: CMS FY 2027 ICD-10-CM Tabular List and order file, effective October 1, 2026 through September 30, 2027.
