Coding and coverage · ICD-10-CM

P71 Transitory neonatal disorders of calcium and magnesium metabolism

Not billable (header)Chapter 16

Report one of the more specific codes below.

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Codes under this one

  • 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

Instructional notes

Chapter 16

Excludes2Not included here: the patient may have both; report both when both are present.
  • congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)
  • endocrine, nutritional and metabolic diseases (E00-E88)
  • injury, poisoning and certain other consequences of external causes (S00-T88)
  • neoplasms (C00-D49)
  • tetanus neonatorum (A33)
Includes
  • conditions that have their origin in the fetal or perinatal period (before birth through the first 28 days after birth) even if morbidity occurs later
Notes
  • Codes from this chapter are for use on newborn records only, never on maternal records

Section P70-P74

Includes
  • transitory endocrine and metabolic disturbances caused by the infant's response to maternal endocrine and metabolic factors, or its adjustment to extrauterine environment

Chapter 16: Certain conditions originating in the perinatal period · P70-P74 Transitory endocrine and metabolic disorders specific to newborn (P70-P74)

Source: ICD-10-CM FY 2027 code descriptions and tabular list (CMS and CDC National Center for Health Statistics), effective 2026-10-01 through 2027-09-30 · CMS ICD-10 files. HCC mapping: CMS-HCC V28, payment year 2027. As of 2026-11-04.

Coverage and payment depend on the claim details; confirm with the Medicare Administrative Contractor.