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v1.0.0
ICD-10 Guide
ICD-10 CodesA77.1

A77.1

Botulism.

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

Code Description

ICD-10 A77.1 is a billable code used to indicate a diagnosis of botulism..

Key Diagnostic Point:

Botulism is a rare but serious illness caused by a toxin produced by the bacterium Clostridium botulinum. This toxin affects the nervous system, leading to muscle paralysis. The condition can arise from various sources, including foodborne botulism, which is the most common form, occurring from the ingestion of improperly canned or preserved foods containing the toxin. Wound botulism can occur when the bacteria enter the body through a wound, while infant botulism is associated with the ingestion of spores, often found in honey, which then produce the toxin in the intestines of infants. Symptoms typically begin with weakness, dizziness, and double vision, progressing to paralysis. Diagnosis is primarily clinical, supported by laboratory tests to detect the toxin in serum, stool, or food samples. Treatment involves antitoxin administration and supportive care, as the recovery can be prolonged. Understanding the transmission routes and clinical manifestations is crucial for timely diagnosis and management.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Differentiating between foodborne, wound, and infant botulism.
  • Need for laboratory confirmation of the toxin.
  • Potential for misdiagnosis with other neurological conditions.
  • Documentation of exposure history and symptom progression.

Audit Risk Factors

  • Inadequate documentation of clinical symptoms.
  • Failure to specify the type of botulism.
  • Lack of laboratory confirmation in medical records.
  • Misclassification of botulism as other neurological disorders.

Specialty Focus

Medical Specialties

Infectious Disease

Documentation Requirements

Detailed history of exposure, clinical symptoms, and laboratory results.

Common Clinical Scenarios

Patients presenting with neurological symptoms after food consumption or wound infection.

Billing Considerations

Consideration of differential diagnoses and the need for timely intervention.

Neurology

Documentation Requirements

Neurological examination findings and progression of symptoms.

Common Clinical Scenarios

Patients with acute onset of weakness and cranial nerve deficits.

Billing Considerations

Differentiating from other causes of acute flaccid paralysis.

Coding Guidelines

Inclusion Criteria

Use A77.1 When
  • Follow official coding guidelines for infectious diseases, ensuring accurate documentation of the type of botulism and any associated complications
  • Include relevant history and laboratory findings

Exclusion Criteria

Do NOT use A77.1 When
No specific exclusions found.

Related CPT Codes

96365CPT Code

Intravenous infusion, for therapy.

Clinical Scenario

Used for administering antitoxin in severe cases.

Documentation Requirements

Document the indication for infusion and patient response.

Specialty Considerations

Infectious disease specialists should ensure proper monitoring during infusion.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for more specific coding of botulism, improving the accuracy of data collection and enhancing the ability to track outbreaks and treatment outcomes.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of botulism, improving the accuracy of data collection and enhancing the ability to track outbreaks and treatment outcomes.

Reimbursement & Billing Impact

The transition to ICD-10 has allowed for more specific coding of botulism, improving the accuracy of data collection and enhancing the ability to track outbreaks and treatment outcomes.

Resources

Clinical References

  • •
    CDC Botulism Information

Coding & Billing References

  • •
    CDC Botulism Information

Frequently Asked Questions

What are the common sources of botulism?

Common sources include improperly canned foods, fermented fish, and honey in infants. Wound botulism can occur from contaminated wounds.