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v1.0.0
ICD-10 Guide
ICD-10 CodesB70.0

B70.0

Diphtheria due to Corynebacterium diphtheriae

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

Code Description

ICD-10 B70.0 is a billable code used to indicate a diagnosis of diphtheria due to corynebacterium diphtheriae.

Key Diagnostic Point:

Diphtheria is an acute bacterial infection caused by Corynebacterium diphtheriae, characterized by the formation of a pseudomembrane in the throat, which can lead to airway obstruction. The disease primarily spreads through respiratory droplets and can also be transmitted via contaminated objects. Symptoms typically include sore throat, fever, and swollen lymph nodes, with the hallmark sign being a grayish-white membrane in the throat. Complications can arise, including myocarditis and neuropathy, particularly in unvaccinated individuals. Vaccination with the diphtheria toxoid is a key preventive measure, and treatment involves the administration of diphtheria antitoxin and antibiotics such as penicillin or erythromycin. Early diagnosis and intervention are crucial to prevent severe outcomes.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Differentiating between diphtheria and other upper respiratory infections
  • Understanding the nuances of vaccination history
  • Recognizing potential complications that may require additional coding
  • Navigating the documentation requirements for antitoxin administration

Audit Risk Factors

  • Inadequate documentation of vaccination status
  • Failure to document the presence of complications
  • Misclassification of diphtheria as a non-specific respiratory infection
  • Lack of clarity in treatment protocols followed

Specialty Focus

Medical Specialties

Infectious Disease

Documentation Requirements

Detailed patient history, vaccination status, and treatment protocols must be documented.

Common Clinical Scenarios

Patients presenting with respiratory symptoms and a history of exposure to infected individuals.

Billing Considerations

Consideration of regional outbreaks and vaccination coverage in the community.

Pediatrics

Documentation Requirements

Documentation of immunization history and any previous infections.

Common Clinical Scenarios

Children presenting with sore throat and fever, especially in unvaccinated populations.

Billing Considerations

Awareness of the importance of timely vaccination and booster doses.

Coding Guidelines

Inclusion Criteria

Use B70.0 When
  • According to the ICD
  • CM coding guidelines, B70
  • 0 should be used when the diagnosis is confirmed by laboratory testing or clinical presentation
  • It is important to document the causative organism and any complications that arise

Exclusion Criteria

Do NOT use B70.0 When
No specific exclusions found.

Related CPT Codes

90375CPT Code

Diphtheria toxoid vaccine administration

Clinical Scenario

Administering the diphtheria vaccine to prevent infection.

Documentation Requirements

Document vaccine type, dosage, and patient consent.

Specialty Considerations

Pediatricians should ensure that vaccination schedules are followed.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for more specific coding of diphtheria, improving the accuracy of data collection and epidemiological tracking of the disease.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of diphtheria, improving the accuracy of data collection and epidemiological tracking of the disease.

Reimbursement & Billing Impact

The transition to ICD-10 has allowed for more specific coding of diphtheria, improving the accuracy of data collection and epidemiological tracking of the disease.

Resources

Clinical References

  • •
    CDC Diphtheria Information

Coding & Billing References

  • •
    CDC Diphtheria Information

Frequently Asked Questions

What are the common symptoms of diphtheria?

Common symptoms include a sore throat, fever, swollen lymph nodes, and the presence of a grayish-white membrane in the throat.

How is diphtheria treated?

Treatment typically involves the administration of diphtheria antitoxin and antibiotics such as penicillin or erythromycin.