2020 ICD-10-CM Diagnosis Code P74.421

Hyperchloremia of newborn

    2019 - New Code 2020 Billable/Specific Code Code on Newborn Record
  • P74.421 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
  • The 2020 edition of ICD-10-CM P74.421 became effective on October 1, 2019.
  • This is the American ICD-10-CM version of P74.421 - other international versions of ICD-10 P74.421 may differ.
ICD-10-CM Coding Rules
  • P74.421 should be used on the newborn record - not on the maternal record.
Applicable To
  • Hyperchloremic metabolic acidosis
Type 2 Excludes
Type 2 Excludes Help
A type 2 excludes note represents "not included here". A type 2 excludes note indicates that the condition excluded is not part of the condition it is excluded from but a patient may have both conditions at the same time. When a type 2 excludes note appears under a code it is acceptable to use both the code (P74.421) and the excluded code together.
  • late metabolic acidosis of the newborn (
    ICD-10-CM Diagnosis Code P74.0

    Late metabolic acidosis of newborn

      2016 2017 2018 2019 2020 Billable/Specific Code Code on Newborn Record
    Type 1 Excludes
    • (fetal) metabolic acidosis of newborn (P19)
    P74.0
    )
The following code(s) above P74.421 contain annotation back-references
Annotation Back-References
In this context, annotation back-references refer to codes that contain:
  • Applicable To annotations, or
  • Code Also annotations, or
  • Code First annotations, or
  • Excludes1 annotations, or
  • Excludes2 annotations, or
  • Includes annotations, or
  • Note annotations, or
  • Use Additional annotations
that may be applicable to P74.421:
  • P00-P96
    2020 ICD-10-CM Range P00-P96

    Certain conditions originating in the perinatal period

    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
    Note
    • Codes from this chapter are for use on newborn records only, never on maternal records
    Type 2 Excludes
    • 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)
    Certain conditions originating in the perinatal period
  • P70-P74
    2020 ICD-10-CM Range P70-P74

    Transitory endocrine and metabolic disorders specific to newborn

    Includes
    • transitory endocrine and metabolic disturbances caused by the infant's response to maternal endocrine and metabolic factors, or its adjustment to extrauterine environment
    Transitory endocrine and metabolic disorders specific to newborn
ICD-10-CM P74.421 is grouped within Diagnostic Related Group(s) (MS-DRG v37.0):
  • 791 Prematurity with major problems
  • 793 Full term neonate with major problems
Code History
  • 2019 (effective 10/1/2018): New code
  • 2020 (effective 10/1/2019): No change

Diagnosis Index entries containing back-references to P74.421:
  • Acidosis (lactic) (respiratory) E87.2
    ICD-10-CM Diagnosis Code E87.2

    Acidosis

      2016 2017 2018 2019 2020 Billable/Specific Code
    Applicable To
    • Acidosis NOS
    • Lactic acidosis
    • Metabolic acidosis
    • Respiratory acidosis
    Type 1 Excludes
    • diabetic acidosis - see categories E08-E10, E13 with ketoacidosis
    • metabolic NEC E87.2
      ICD-10-CM Diagnosis Code E87.2

      Acidosis

        2016 2017 2018 2019 2020 Billable/Specific Code
      Applicable To
      • Acidosis NOS
      • Lactic acidosis
      • Metabolic acidosis
      • Respiratory acidosis
      Type 1 Excludes
      • diabetic acidosis - see categories E08-E10, E13 with ketoacidosis
      • hyperchloremic, of newborn P74.421
  • Disturbance(s) - see also Disease

ICD-10-CM Codes Adjacent To P74.421
P74.1 Dehydration of newborn
P74.2 Disturbances of sodium balance of newborn
P74.21 Hypernatremia of newborn
P74.22 Hyponatremia of newborn
P74.3 Disturbances of potassium balance of newborn
P74.31 Hyperkalemia of newborn
P74.32 Hypokalemia of newborn
P74.4 Other transitory electrolyte disturbances of newborn
P74.41 Alkalosis of newborn
P74.42 Disturbances of chlorine balance of newborn
P74.421 Hyperchloremia of newborn
P74.422 Hypochloremia of newborn
P74.49 Other transitory electrolyte disturbance of newborn
P74.5 Transitory tyrosinemia of newborn
P74.6 Transitory hyperammonemia of newborn
P74.8 Other transitory metabolic disturbances of newborn
P74.9 Transitory metabolic disturbance of newborn, unspecified
P76 Other intestinal obstruction of newborn
P76.0 Meconium plug syndrome
P76.1 Transitory ileus of newborn
P76.2 Intestinal obstruction due to inspissated milk

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.