Flood, sequela

This code signifies the long-term or late-occurring health effects resulting from a flood event. These sequelae can manifest as physical injuries, chronic illnesses, or mental health conditions that persist or develop after the immediate flood exposure has passed.

Use this code when documenting conditions directly attributable to a past flood, such as chronic respiratory issues from mold exposure, post-traumatic stress disorder (PTSD) following the event, or persistent musculoskeletal pain from flood-related injuries. It is appropriate when the acute phase of the flood has concluded, and the patient is presenting for treatment of these lasting consequences.

• Always sequence this code after the specific condition or injury being treated (e.g., J45.909 for asthma, then X38.XXXS).
• Ensure documentation clearly links the current condition to a past flood event.
• This code is for sequelae only; do not use for acute flood-related injuries or illnesses.