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ICD-10 Guide
ICD-10 CodesP04.9

P04.9

Billable

Newborn affected by maternal noxious substance, unspecified

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

Code Description

ICD-10 P04.9 is a billable code used to indicate a diagnosis of newborn affected by maternal noxious substance, unspecified.

Key Diagnostic Point:

The code P04.9 is used to classify newborns who are affected by maternal noxious substances, which may include drugs, alcohol, or tobacco that are transmitted through the placenta or breast milk. This condition can lead to a variety of complications in the newborn, including withdrawal symptoms, growth restrictions, and developmental delays. Maternal substance use during pregnancy can have profound effects on the fetus, leading to conditions such as Neonatal Abstinence Syndrome (NAS) or Fetal Alcohol Spectrum Disorders (FASD). The clinical presentation may vary widely, and the severity of symptoms can depend on the type and amount of substance used, as well as the timing of exposure during gestation. Accurate coding requires a thorough understanding of the maternal history and the clinical manifestations observed in the newborn. Documentation should include details about the maternal substance use, any observed symptoms in the newborn, and the management provided in the neonatal period.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Variability in maternal substance use patterns and their effects on newborns.
  • Need for comprehensive maternal history to accurately assess impact.
  • Differentiation between various noxious substances and their specific effects.
  • Potential overlap with other neonatal conditions requiring careful documentation.

Audit Risk Factors

  • Inadequate documentation of maternal substance use history.
  • Failure to document specific symptoms observed in the newborn.
  • Misclassification of the type of noxious substance affecting the newborn.
  • Lack of follow-up documentation regarding the newborn's condition.

Specialty Focus

Medical Specialties

Neonatology

Documentation Requirements

Detailed maternal history, including substance use patterns, and clinical observations of the newborn.

Common Clinical Scenarios

Newborns presenting with withdrawal symptoms, low birth weight, or developmental delays in the NICU.

Billing Considerations

Consideration of the timing of maternal substance use and its correlation with neonatal outcomes.

Pediatrics

Documentation Requirements

Comprehensive assessment of the newborn's growth and development, including any long-term follow-up needs.

Common Clinical Scenarios

Pediatric evaluations of children with developmental delays or behavioral issues stemming from prenatal exposure.

Billing Considerations

Awareness of the long-term implications of prenatal substance exposure on pediatric health.

Coding Guidelines

Inclusion Criteria

Use P04.9 When
  • Coders should refer to the official ICD
  • CM coding guidelines, which emphasize the importance of specificity in coding
  • Documentation must clearly indicate the maternal substance use and any associated symptoms in the newborn
  • Additionally, coders should be aware of the need for additional codes to capture any specific conditions resulting from the noxious substance exposure

Exclusion Criteria

Do NOT use P04.9 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

Clinical Scenario

Used in conjunction with P04.9 when assessing a newborn with maternal substance exposure.

Documentation Requirements

Document the newborn's clinical status and any interventions required.

Specialty Considerations

Neonatologists should ensure thorough documentation of maternal history and newborn assessment.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for more detailed coding of perinatal conditions, including the ability to specify the type of noxious substance affecting the newborn. This enhances the accuracy of data collection and improves the understanding of maternal substance use impacts on neonatal health.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more detailed coding of perinatal conditions, including the ability to specify the type of noxious substance affecting the newborn. This enhances the accuracy of data collection and improves the understanding of maternal substance use impacts on neonatal health.

Reimbursement & Billing Impact

The transition to ICD-10 has allowed for more detailed coding of perinatal conditions, including the ability to specify the type of noxious substance affecting the newborn. This enhances the accuracy of data collection and improves the understanding of maternal substance use impacts on neonatal health.

Resources

Clinical References

  • •
    CDC Guidelines on Maternal Substance Use

Coding & Billing References

  • •
    CDC Guidelines on Maternal Substance Use

Frequently Asked Questions

What should be documented to support the use of code P04.9?

Documentation should include a detailed maternal history of substance use, specific symptoms observed in the newborn, and any interventions provided. This information is crucial for accurate coding and billing.