Unsp foreign body in larynx causing asphyxiation, sequela

This code signifies a long-term complication or condition resulting from an unspecified foreign object previously lodged in the larynx, which originally led to asphyxiation. The patient is no longer in the acute phase of the foreign body aspiration but is experiencing ongoing issues directly attributable to that past event.

Apply this code when documenting a patient presenting with a sequela (e.g., chronic laryngeal damage, vocal cord paralysis, persistent airway issues) that is a direct consequence of an earlier episode of asphyxiation caused by an unspecified foreign body in the larynx. This code is appropriate for follow-up encounters addressing these lasting effects, not the initial acute event.

• 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 the past foreign body aspiration and asphyxiation.
• Do not use this code for the initial acute foreign body aspiration event; instead, use the appropriate acute T17.300A or T17.300D codes.