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ICD-10 Guide
ICD-10 CodesV21.31

V21.31

Billable

Person boarding or alighting an electric (assisted) bicycle injured in collision with pedal cycle

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

Code Description

ICD-10 V21.31 is a billable code used to indicate a diagnosis of person boarding or alighting an electric (assisted) bicycle injured in collision with pedal cycle.

Key Diagnostic Point:

The ICD-10 code V21.31 is used to classify injuries sustained by individuals who are boarding or alighting from an electric (assisted) bicycle and are involved in a collision with a pedal cycle. This code captures the external cause of morbidity related to the interaction between different types of bicycles, highlighting the increasing prevalence of electric bicycles in urban environments. As cities promote cycling as a sustainable mode of transport, the risk of accidents involving electric bicycles and traditional pedal cycles has risen. Accurate coding of such incidents is crucial for public health data collection, injury prevention strategies, and resource allocation. Documentation should include details of the incident, the nature of the injuries sustained, and any contributing factors such as road conditions or cyclist behavior.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Differentiating between types of bicycles involved in the collision.
  • Determining the specific circumstances of boarding or alighting.
  • Accurate documentation of the incident's context and environment.
  • Potential overlap with other external cause codes.

Audit Risk Factors

  • Inadequate documentation of the incident details.
  • Misclassification of the type of bicycle involved.
  • Failure to capture the boarding or alighting context.
  • Inconsistent use of external cause codes across different encounters.

Specialty Focus

Medical Specialties

Emergency Medicine

Documentation Requirements

Emergency department notes must clearly document the mechanism of injury, including details about the bicycles involved and the circumstances of the collision.

Common Clinical Scenarios

Patients presenting with fractures, lacerations, or contusions after a collision while boarding or alighting from an electric bicycle.

Billing Considerations

Consideration of other injuries that may not be immediately apparent, such as concussions or internal injuries.

Trauma Surgery

Documentation Requirements

Trauma documentation should include a detailed account of the mechanism of injury, injury severity, and any surgical interventions performed.

Common Clinical Scenarios

Trauma cases involving significant injuries from collisions, requiring surgical intervention or hospitalization.

Billing Considerations

Assessment of potential long-term complications from injuries sustained in the collision.

Coding Guidelines

Inclusion Criteria

Use V21.31 When
  • According to ICD
  • CM guidelines, external cause codes should be used in conjunction with the appropriate injury codes
  • It is essential to report the external cause code in the seventh position when applicable, and to ensure that the code reflects the specific circumstances of the injury

Exclusion Criteria

Do NOT use V21.31 When
No specific exclusions found.

Related ICD-10 Codes

Related CPT Codes

99283CPT Code

Emergency department visit, level 3

Clinical Scenario

Used when a patient presents to the emergency department with injuries from a bicycle collision.

Documentation Requirements

Documentation must support the level of service provided, including history, examination, and medical decision-making.

Specialty Considerations

Emergency medicine specialists should ensure that the mechanism of injury is clearly documented.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for more specific coding of external causes of injuries, improving the ability to track and analyze injury patterns related to electric bicycles and pedal cycles.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of external causes of injuries, improving the ability to track and analyze injury patterns related to electric bicycles and pedal cycles.

Reimbursement & Billing Impact

The transition to ICD-10 has allowed for more specific coding of external causes of injuries, improving the ability to track and analyze injury patterns related to electric bicycles and pedal cycles.

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

When should I use V21.31 instead of V21.30?

Use V21.31 when the injury specifically involves a person boarding or alighting from an electric bicycle in a collision with a pedal cycle. If the context of boarding or alighting is not applicable, use V21.30.