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ICD-10 Guide
ICD-10 CodesP74.49

P74.49

Billable

Other transitory electrolyte disturbance of newborn

BILLABLE STATUSYes
IMPLEMENTATION DATEOctober 1, 2015
LAST UPDATED09/11/2025

Code Description

ICD-10 P74.49 is a billable code used to indicate a diagnosis of other transitory electrolyte disturbance of newborn.

Key Diagnostic Point:

Transitory electrolyte disturbances in newborns can arise from various physiological and pathological conditions. These disturbances often manifest as imbalances in sodium, potassium, calcium, and magnesium levels, which can occur due to factors such as maternal diabetes, prematurity, or inadequate feeding. Newborns are particularly vulnerable to these disturbances due to their immature renal function and the rapid changes in fluid and electrolyte balance that can occur in the early days of life. Clinically, these disturbances may present with symptoms such as lethargy, irritability, poor feeding, or seizures. Diagnosis typically involves serum electrolyte measurements and careful monitoring of the infant's clinical status. Management may include fluid and electrolyte replacement, dietary adjustments, and close observation in a neonatal intensive care unit (NICU) setting. The prognosis is generally good with timely intervention, although severe disturbances can lead to significant morbidity if not addressed promptly.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Variability in clinical presentation among newborns
  • Need for precise laboratory values for diagnosis
  • Differentiation from other metabolic disturbances
  • Documentation of maternal history and perinatal factors

Audit Risk Factors

  • Inadequate documentation of clinical findings
  • Failure to link electrolyte disturbances to specific clinical scenarios
  • Misclassification of electrolyte disturbances
  • Lack of follow-up documentation on treatment outcomes

Specialty Focus

Medical Specialties

Neonatology

Documentation Requirements

Detailed records of electrolyte levels, clinical symptoms, and treatment plans are essential.

Common Clinical Scenarios

Newborns presenting with lethargy and poor feeding, requiring electrolyte monitoring in the NICU.

Billing Considerations

Consider maternal health factors, such as gestational diabetes, that may contribute to electrolyte imbalances.

Pediatrics

Documentation Requirements

Documentation should include a thorough history of the newborn's perinatal period and any interventions.

Common Clinical Scenarios

Pediatric follow-up for infants discharged with a history of electrolyte disturbances.

Billing Considerations

Monitor for long-term effects of early electrolyte imbalances on growth and development.

Coding Guidelines

Inclusion Criteria

Use P74.49 When
  • Follow the official ICD
  • CM guidelines for coding electrolyte disturbances, ensuring accurate documentation of clinical findings and laboratory results

Exclusion Criteria

Do NOT use P74.49 When
No specific exclusions found.

Related ICD-10 Codes

Related CPT Codes

36415CPT Code

Collection of venous blood by venipuncture

Clinical Scenario

Used for obtaining blood samples to assess electrolyte levels in newborns.

Documentation Requirements

Document the reason for blood draw and any clinical symptoms present.

Specialty Considerations

Neonatologists should ensure that the clinical rationale for testing is clearly documented.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for more specific coding of electrolyte disturbances, improving the accuracy of data collection and reimbursement processes.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of electrolyte disturbances, improving the accuracy of data collection and reimbursement processes.

Reimbursement & Billing Impact

reimbursement processes.

Resources

Clinical References

  • •
    American Academy of Pediatrics - Neonatal Care

Coding & Billing References

  • •
    American Academy of Pediatrics - Neonatal Care

Frequently Asked Questions

What are the common causes of transitory electrolyte disturbances in newborns?

Common causes include maternal diabetes, prematurity, inadequate feeding, and certain medications. Monitoring and timely intervention are crucial for managing these disturbances.