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v1.0.0
ICD-10 Guide
ICD-10 CodesV21.21

V21.21

Billable

Unspecified electric (assisted) bicycle rider injured in collision with pedal cycle in nontraffic accident

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

Code Description

ICD-10 V21.21 is a billable code used to indicate a diagnosis of unspecified electric (assisted) bicycle rider injured in collision with pedal cycle in nontraffic accident.

Key Diagnostic Point:

The code V21.21 is used to classify injuries sustained by riders of electric (assisted) bicycles involved in collisions with pedal bicycles during nontraffic accidents. This may include incidents occurring on private property, in parks, or other non-public roadways. The injuries can range from minor abrasions to severe trauma, depending on the nature of the collision and the circumstances surrounding it. Accurate coding is essential for tracking injury patterns, understanding the epidemiology of electric bicycle accidents, and facilitating appropriate public health interventions. Documentation should include details about the accident's context, the type of injuries sustained, and any contributing factors such as environmental conditions or rider behavior.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Ambiguity in defining 'nontraffic' accidents
  • Variability in documentation quality from different healthcare providers
  • Potential overlap with other external cause codes
  • Need for precise details about the accident circumstances

Audit Risk Factors

  • Inadequate documentation of the accident context
  • Misclassification of traffic vs. nontraffic accidents
  • Failure to specify the type of electric bicycle involved
  • Inconsistent use of external cause codes across providers

Specialty Focus

Medical Specialties

Emergency Medicine

Documentation Requirements

Emergency department notes should clearly describe the mechanism of injury, including details about the collision and any immediate interventions.

Common Clinical Scenarios

Patients presenting with lacerations, fractures, or contusions after a collision with a pedal bicycle.

Billing Considerations

Ensure that the documentation specifies the type of bicycle and the circumstances of the accident to support accurate coding.

Trauma Surgery

Documentation Requirements

Trauma notes must include a detailed account of the injury mechanism, including the speed of both bicycles and the impact angle.

Common Clinical Scenarios

Trauma cases involving significant injuries such as head trauma or orthopedic injuries from a collision.

Billing Considerations

Consider the potential for multiple injuries and the need for comprehensive coding to capture all relevant external causes.

Coding Guidelines

Inclusion Criteria

Use V21.21 When
  • Follow the ICD
  • CM guidelines for external cause codes, ensuring that the code is used in conjunction with the appropriate injury codes
  • Document the circumstances of the accident thoroughly to support the use of V21

Exclusion Criteria

Do NOT use V21.21 When
No specific exclusions found.

Related ICD-10 Codes

Related CPT Codes

99284CPT Code

Emergency department visit, high severity

Clinical Scenario

Used when a patient presents with significant injuries from a collision.

Documentation Requirements

Document the nature of the injuries and the circumstances of the accident.

Specialty Considerations

Emergency medicine providers should ensure that all relevant details are captured for accurate coding.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for more specific coding of injuries related to electric bicycles, improving data collection and analysis for public health initiatives.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of injuries related to electric bicycles, improving data collection and analysis for public health initiatives.

Reimbursement & Billing Impact

The transition to ICD-10 has allowed for more specific coding of injuries related to electric bicycles, improving data collection and analysis for public health initiatives.

Resources

Clinical References

  • •
    ICD-10-CM Official Guidelines for Coding and Reporting

Coding & Billing References

  • •
    ICD-10-CM Official Guidelines for Coding and Reporting

Frequently Asked Questions

What types of injuries are typically coded with V21.21?

Injuries can range from minor abrasions and contusions to more severe injuries such as fractures or head trauma, depending on the nature of the collision.