V21 ICD-10-CM Code: Motorcycle rider injured in collision with pedal cycle

V21 is the ICD-10-CM diagnosis code for motorcycle rider injured in collision with pedal cycle. V21 sits in the ICD-10-CM chapter for external causes of morbidity (v00-y99), within the section covering motorcycle rider injured in transport accident (v20-v29).

Header codes like V21 cannot be reported on claims directly, they organize child codes that share clinical context but the actual diagnosis must be coded to the highest level of specificity supported by the documentation. Coders should look at V21's child codes and select the one that matches the patient's documented presentation, since payers reject header codes submitted as the primary diagnosis. For risk adjustment workflows, header codes never contribute to a Medicare Advantage member's RAF score on their own; only billable child codes that happen to map to a payment HCC affect risk-adjusted plan payments.