ICD-10-CM Billable Code

P74.421

Hyperchloremia of newborn

Clinical Classification Guidelines

Inclusion Terms

  • Hyperchloremic metabolic acidosis

Excludes Type 2

  • late metabolic acidosis of the newborn (P74.0)

Medical Intelligence & Overview

Hyperchloremia of newborn, classified under ICD-10 code P74.421, is a condition characterized by an elevated level of chloride in a newborn's blood. This condition often occurs along with metabolic acidosis, a disturbance where the body's acid-base balance is upset, resulting in decreased blood pH. Recognizing and understanding hyperchloremia in infants is essential, as it can be associated with underlying health issues that require medical attention. This guide provides a comprehensive overview of hyperchloremia in newborns, including its causes, symptoms, diagnosis, and general management principles.

Causes & Symptoms

Clinical Causes: Dehydration or significant fluid loss leading to increased chloride concentration. Renal impairment affecting chloride excretion. Metabolic or respiratory acidosis causing a shift in electrolyte balance. Excessive administration of chloride-rich IV fluids, such as saline solutions. Certain congenital or acquired metabolic disorders that impact electrolyte handling. Infections or systemic illnesses leading to electrolyte disturbances.

Key Symptoms: Rapid breathing or difficulty breathing. Lethargy or decreased activity levels. Poor feeding or refusal to eat. Vomiting or diarrhea, which may contribute to electrolyte imbalance. Signs of dehydration, such as dry mouth, sunken fontanel in infants. Altered consciousness or irritability in severe cases.

Diagnostic & Treatment

Diagnosis Path: Diagnosis of hyperchloremia in newborns involves a series of blood tests, primarily measuring serum electrolyte levels, to confirm elevated chloride concentrations. Additional tests may include arterial blood gases to assess acid-base status, which helps identify associated metabolic acidosis. The healthcare provider will evaluate the infant's medical history, clinical symptoms, and perform physical examinations to determine the underlying cause of the electrolyte imbalance.

Treatment Protocols: Treatment strategies focus on addressing the underlying cause and correcting the electrolyte imbalance and acid-base disturbance. These may include:

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

Clinical Advice & FAQs

Billing Guidance

Is P74.421 a billable ICD-10 code?
Yes, P74.421 is a specific, billable code that can be used to indicate a diagnosis for reimbursement purposes.

Documentation

How do I report P74.421?
Clinical documentation must specify the nature of Hyperchloremia of newborn and any associated comorbidities for accurate reporting.

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