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ICD-10 Guide
ICD-10 CodesP81.0

P81.0

Billable

Environmental hyperthermia of newborn

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

Code Description

ICD-10 P81.0 is a billable code used to indicate a diagnosis of environmental hyperthermia of newborn.

Key Diagnostic Point:

Environmental hyperthermia in newborns occurs when an infant is exposed to excessively high ambient temperatures, leading to an increase in body temperature that can disrupt normal physiological functions. This condition is particularly concerning in neonates due to their limited ability to thermoregulate. Factors contributing to environmental hyperthermia include high ambient temperatures, inadequate ventilation, and excessive clothing or bedding. Symptoms may include lethargy, irritability, poor feeding, and in severe cases, heat exhaustion or heat stroke. The risk is heightened in preterm infants and those with underlying health conditions. Management involves immediate cooling measures, such as removing excess clothing, providing a cooler environment, and monitoring vital signs closely. Understanding the pathophysiology of hyperthermia is crucial, as prolonged exposure can lead to serious complications, including organ dysfunction and increased mortality. Accurate coding of this condition is essential for appropriate treatment and resource allocation in neonatal care.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Differentiating between environmental hyperthermia and other causes of hyperthermia.
  • Understanding the clinical implications of hyperthermia in different gestational ages.
  • Documenting the environmental factors contributing to hyperthermia.
  • Recognizing associated conditions that may complicate hyperthermia management.

Audit Risk Factors

  • Inadequate documentation of environmental conditions leading to hyperthermia.
  • Failure to differentiate between hyperthermia and fever.
  • Misclassification of the severity of hyperthermia.
  • Lack of follow-up documentation on treatment outcomes.

Specialty Focus

Medical Specialties

Neonatology

Documentation Requirements

Detailed notes on environmental conditions, infant's response, and interventions taken.

Common Clinical Scenarios

Infants in NICU experiencing heat stress due to high ambient temperatures or inadequate cooling.

Billing Considerations

Consideration of gestational age and weight in assessing risk and treatment.

Pediatrics

Documentation Requirements

Documentation of history, physical examination findings, and treatment plans.

Common Clinical Scenarios

Outpatient follow-up for infants previously treated for hyperthermia.

Billing Considerations

Awareness of developmental milestones and potential long-term effects of hyperthermia.

Coding Guidelines

Inclusion Criteria

Use P81.0 When
  • Follow ICD
  • 10 guidelines for coding environmental hyperthermia, ensuring accurate documentation of the infant's condition, treatment, and environmental factors
  • Use additional codes as necessary to capture associated conditions

Exclusion Criteria

Do NOT use P81.0 When
No specific exclusions found.

Related ICD-10 Codes

Related CPT Codes

99460CPT Code

Initial hospital care, per day, for evaluation and management of a normal newborn infant

Clinical Scenario

Used when a newborn is evaluated for hyperthermia in the hospital setting.

Documentation Requirements

Document the infant's condition, environmental factors, and treatment plan.

Specialty Considerations

Neonatologists should ensure thorough documentation of the infant's response to treatment.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for more specific coding of neonatal conditions, including environmental hyperthermia, improving the accuracy of diagnoses and treatment tracking.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of neonatal conditions, including environmental hyperthermia, improving the accuracy of diagnoses and treatment tracking.

Reimbursement & Billing Impact

The transition to ICD-10 has allowed for more specific coding of neonatal conditions, including environmental hyperthermia, improving the accuracy of diagnoses and treatment tracking.

Resources

Clinical References

  • •
    Neonatal Hyperthermia Management Guidelines

Coding & Billing References

  • •
    Neonatal Hyperthermia Management Guidelines

Frequently Asked Questions

What are the primary causes of environmental hyperthermia in newborns?

Environmental hyperthermia in newborns is primarily caused by high ambient temperatures, inadequate ventilation, and excessive clothing or bedding. It is crucial to monitor the environment and adjust accordingly to prevent this condition.