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ICD-10-CM 2027 diagnosis code

P71Transitory neonatal disorders of calcium and magnesium metabolism

Not billable — use a more specific code

P71 is a header code, so it can't be reported by itself. Choose one of the 7 more specific codes beneath it.Short description: Transitory neonatal disorders of calcium and magnesium metab

Code unchanged since ICD-10-CM took effect on October 1, 2015. Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data

About P71

P71 is the ICD-10-CM diagnosis code for transitory neonatal disorders of calcium and magnesium metabolism. It belongs to block P70-P74 (transitory endocrine and metabolic disorders specific to newborn) and chapter 16 (certain conditions originating in the perinatal period). It is a header code, so it can't be reported by itself; one of its 7 subcodes must be used instead.

To report this condition, pick the subcode that matches the documentation: P71.0 (newborn), P71.1 (hypocalcemia), P71.2 (hypomagnesemia), P71.3 (deficiency), P71.4 (hypoparathyroidism), P71.8 (metabolism) and P71.9 (unspecified).

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.

Specific codes under P71

Notes that apply from higher levels

Instructions written at a parent level also apply to P71.

Broader instructions also apply from P70-P74 Transitory endocrine and metabolic disorders specific to newborn and Chapter 16: Certain conditions originating in the perinatal period.

Code history

  1. 2016
  2. 2017
  3. 2018
  4. 2019
  5. 2020
  6. 2021
  7. 2022
  8. 2023
  9. 2024
  10. 2025
  11. 2026
  12. 2027
  • FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
  • No changes since FY2016.

Common questions about P71

Is P71 billable?

No. P71 is a header code. Report one of its more specific subcodes instead.