Occ of stcar injured in derail w/o antecedent clsn, subs

This code signifies an injury sustained by a person riding a streetcar that derailed, but did not collide with another object or vehicle. The "subsequent encounter" indicates that this code is used for follow-up care, after the initial treatment for the injury has already been provided.

This code is appropriate for documenting ongoing treatment, rehabilitation, or evaluation of injuries sustained in a streetcar derailment without a prior collision. Examples include follow-up appointments for fractures, sprains, or other trauma resulting from the incident.

• Ensure the documentation clearly states the injury occurred during a streetcar derailment without an antecedent collision.
• Verify that this is not the initial encounter for the injury; if it is, a different encounter character (A) would be used.
• Always code the specific injury(ies) sustained in addition to this external cause code.