DxCodebookFY2027 · Oct 1, 2026 – Sep 30, 2027

Category · FY2027

P74 Other transitory neonatal electrolyte and metabolic disturbances

  • Header · not billable

P74 is not billable. The category heads 14 billable codes in FY2027, grouped under 9 subdivisions.

Index → code

  • Hyperbicarbonatemia → P74.41
  • Dehydrationnewborn → P74.1
  • Tyrosinemianewborn, transitory → P74.5

Where it sits

  1. Chapter 16 Certain conditions originating in the perinatal period (P00-P96)
  2. P70-P74 Transitory endocrine and metabolic disorders specific to newborn (P70-P74)
  3. P74 Other transitory neonatal electrolyte and metabolic disturbances
Billable codes
14
Subdivisions
9
CC / MCC codes
4 / 1
HCC V28 codes
0
New FY2027
0
Index entries
34

Codes in P74

  1. P74.0
    Late metabolic acidosis of newborn
    BillableMCC
    Excludes1 1

    Excludes1

    • (fetal) metabolic acidosis of newborn (P19) P19
  2. P74.1
    Dehydration of newborn
    Billable
  3. P74.2
    Disturbances of sodium balance of newborn
    Header
  4. P74.21
    Hypernatremia of newborn
    Billable
  5. P74.22
    Hyponatremia of newborn
    Billable
  6. P74.3
    Disturbances of potassium balance of newborn
    Header
  7. P74.31
    Hyperkalemia of newborn
    Billable
  8. P74.32
    Hypokalemia of newborn
    Billable
  9. P74.4
    Other transitory electrolyte disturbances of newborn
    Header
  10. P74.41
    Alkalosis of newborn
    BillableCC
    Inclusion terms 1

    Inclusion terms

    • Hyperbicarbonatemia
  11. P74.42
    Disturbances of chlorine balance of newborn
    Header
  12. P74.421
    Hyperchloremia of newborn
    Billable
    Inclusion terms 1, Excludes2 1

    Inclusion terms

    • Hyperchloremic metabolic acidosis

    Excludes2

    • late metabolic acidosis of the newborn (P74.0) P74.0
  13. P74.422
    Hypochloremia of newborn
    Billable
  14. P74.49
    Other transitory electrolyte disturbance of newborn
    Billable
  15. P74.5
    Transitory tyrosinemia of newborn
    BillableCC
  16. P74.6
    Transitory hyperammonemia of newborn
    BillableCC
  17. P74.8
    Other transitory metabolic disturbances of newborn
    BillableCC
    Inclusion terms 1

    Inclusion terms

    • Amino-acid metabolic disorders described as transitory
  18. P74.9
    Transitory metabolic disturbance of newborn, unspecified
    Billable

CC/MCC: as a secondary diagnosis, unless the principal diagnosis is on the code’s PDX exclusion list (MS-DRG v44 Appendix C; list on the code card).

Sources of each column.

Instructions

Notes that also apply

Block P70-P74 instructions (Includes 1): printed on the block page.

Chapter 16 instructions (Notes 1, Includes 1, Excludes2 5): printed on the chapter 16 page.

Index entries

  • Hyperbicarbonatemia → P74.41
  • Newborn (infant) (liveborn) (singleton)late metabolic acidosis → P74.0
  • Dehydrationnewborn → P74.1
  • Newborn (infant) (liveborn) (singleton)dehydration → P74.1
  • Newborn (infant) (liveborn) (singleton)hypernatremia → P74.21
  • Newborn (infant) (liveborn) (singleton)hyponatremia → P74.22
  • Tyrosinemianewborn, transitory → P74.5
  • Disorder (of)metabolic, amino acid, transitory, newborn → P74.8
  • Acidosis (lactic)metabolic NEClate, of newborn → P74.0
  • Disturbance(s)sodium balance, newbornhypernatremia → P74.21
  • Disturbance(s)sodium balance, newbornhyponatremia → P74.22
  • Disturbance(s)potassium balance, newbornhyperkalemia → P74.31
  • Disturbance(s)potassium balance, newbornhypokalemia → P74.32
  • Alkalosismetabolicof newborn → P74.41
  • Acidosis (lactic)metabolic NEChyperchloremic, of newborn → P74.421
  • Disturbance(s)electrolytenewborn, transitory → P74.49
  • Imbalanceelectrolyteneonatal, transitory NEC → P74.49
  • Disorder (of)amino-acidneonatal, transitory → P74.8
  • Newborn (infant) (liveborn) (singleton)affected byamino-acid metabolic disorder, transitory → P74.8
  • Disturbance(s)metabolismneonatal, transitory → P74.9
  • Disturbance(s)electrolytenewborn, transitoryhyperchloremia → P74.421
  • Disturbance(s)electrolytenewborn, transitoryhyperchloremic metabolic acidosis → P74.421
  • Disturbance(s)electrolytenewborn, transitoryhypochloremia → P74.422
  • Disturbance(s)electrolytenewborn, transitoryspecified type NEC → P74.49
  • Disturbance(s)electrolytenewborn, transitoryhyperammonemia → P74.6
  • Disturbance(s)metabolismneonatal, transitoryspecified NEC → P74.8
  • Disturbance(s)electrolytenewborn, transitorysodium balancehypernatremia → P74.21
  • Imbalanceelectrolyteneonatal, transitory NECsodiumhypernatremia → P74.21
  • Disturbance(s)electrolytenewborn, transitorysodium balancehyponatremia → P74.22
  • Imbalanceelectrolyteneonatal, transitory NECsodiumhyponatremia → P74.22
  • Disturbance(s)electrolytenewborn, transitorypotassium balancehyperkalemia → P74.31
  • Imbalanceelectrolyteneonatal, transitory NECpotassiumhyperkalemia → P74.31
  • Disturbance(s)electrolytenewborn, transitorypotassium balancehypokalemia → P74.32
  • Imbalanceelectrolyteneonatal, transitory NECpotassiumhypokalemia → P74.32

NCHS Alphabetic Index. Index first, then the Tabular List.

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