Shock due to being struck by lightning, sequela

This code signifies the long-term or residual effects resulting from a lightning strike. These sequelae can manifest in various organ systems and may include neurological deficits, cardiac arrhythmias, burns, or psychological trauma that persist after the initial acute injury has resolved.

Apply this code when documenting conditions or symptoms that are directly attributable to a lightning strike and are presenting as a late effect. This is appropriate for follow-up encounters where the patient is being treated for chronic issues stemming from the original lightning injury.

• Always use this code as a secondary diagnosis, following the code for the specific sequela being treated.
• Ensure documentation clearly links the current condition to a past lightning strike.
• The "S" in the 7th character indicates sequela; do not use for initial or subsequent encounters for the acute injury.