External constriction of lower back and pelvis, sequela

This code describes the long-term or residual effects resulting from external constriction of the lower back and pelvic region. This refers to conditions that persist after the initial constricting force has been removed, such as chronic pain, nerve damage, or functional limitations.

Use this code when documenting a patient presenting with a current condition that is a direct consequence of a past external constriction injury to the lower back and pelvis. This applies to follow-up encounters for sequelae that have stabilized but continue to impact the patient.

• Always sequence the sequela code first, followed by codes for the specific manifestation(s) of the sequela (e.g., chronic pain, nerve palsy).
• Ensure documentation clearly links the current condition to a previous external constriction injury of the lower back and pelvis.
• This "S" seventh character indicates a sequela; do not use for initial or subsequent encounters for the acute injury.