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v1.0.0
ICD-10 Guide
ICD-10 CodesA33

A33

Tetanus neonatorum

BILLABLE STATUSYes
IMPLEMENTATION DATEOctober 1, 2015
LAST UPDATED09/05/2025

Code Description

ICD-10 A33 is a billable code used to indicate a diagnosis of tetanus neonatorum.

Key Diagnostic Point:

Tetanus neonatorum is a severe and often fatal condition caused by the infection of the newborn with Clostridium tetani, typically occurring when the umbilical stump is contaminated. This condition is characterized by muscle rigidity and spasms, which can lead to respiratory failure and death if not treated promptly. The onset of symptoms usually occurs within the first two weeks of life, with the infant exhibiting signs such as difficulty feeding, irritability, and spasms triggered by stimuli. The disease is most prevalent in areas with inadequate maternal immunization against tetanus and poor hygiene practices during childbirth. Prevention is primarily through maternal vaccination and proper care of the umbilical cord. Treatment involves supportive care, administration of tetanus immunoglobulin, and antibiotics to manage the infection. The prognosis is significantly improved with early recognition and intervention, although mortality rates remain high in untreated cases.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Differentiating between types of tetanus (neonatal vs. adult)
  • Understanding the clinical presentation and timing of symptoms
  • Documentation of maternal vaccination history
  • Potential for co-morbid conditions in neonates

Audit Risk Factors

  • Inadequate documentation of maternal immunization status
  • Failure to document the clinical presentation and timing of symptoms
  • Misclassification of the type of tetanus
  • Lack of detailed treatment protocols in medical records

Specialty Focus

Medical Specialties

Pediatrics

Documentation Requirements

Detailed clinical notes on the infant's symptoms, maternal history, and treatment provided.

Common Clinical Scenarios

Infants presenting with muscle spasms and irritability, especially in areas with low vaccination rates.

Billing Considerations

Ensure accurate documentation of the infant's vaccination status and maternal health history.

Obstetrics

Documentation Requirements

Records of maternal vaccinations and prenatal care details.

Common Clinical Scenarios

Pregnant women in areas with high tetanus prevalence and low vaccination rates.

Billing Considerations

Focus on maternal immunization history and hygiene practices during delivery.

Coding Guidelines

Inclusion Criteria

Use A33 When
  • Follow the official ICD
  • CM coding guidelines, ensuring accurate documentation of the clinical presentation and maternal history
  • Include any relevant co
  • morbid conditions that may affect treatment and outcomes

Exclusion Criteria

Do NOT use A33 When
No specific exclusions found.

Related CPT Codes

90715CPT Code

Tetanus toxoid vaccine administration

Clinical Scenario

Administering the vaccine to pregnant women to prevent neonatal tetanus.

Documentation Requirements

Record of vaccination status and administration details.

Specialty Considerations

Obstetricians should ensure proper documentation of maternal vaccination.

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, improving the accuracy of data collection and analysis for public health initiatives aimed at reducing neonatal tetanus.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of neonatal conditions, improving the accuracy of data collection and analysis for public health initiatives aimed at reducing neonatal tetanus.

Reimbursement & Billing Impact

reimbursement.

Resources

Clinical References

  • •
    CDC Tetanus Information

Coding & Billing References

  • •
    CDC Tetanus Information

Frequently Asked Questions

What is the primary cause of tetanus neonatorum?

Tetanus neonatorum is primarily caused by the infection of the newborn with Clostridium tetani, often due to contamination of the umbilical stump.