Complication of surgical and medical care, unsp, sequela

This code signifies a long-term or late-effect complication arising from a previous surgical or medical intervention, where the specific nature of the complication remains unknown or undocumented. It indicates that a patient is experiencing ongoing health issues directly attributable to past care, but the precise type of adverse event cannot be identified.

This code is appropriate when a patient presents with a chronic or residual condition clearly linked to prior medical or surgical treatment, but the documentation lacks the specificity to assign a more detailed complication code. It is used for sequelae when the original complication itself is not specified.

• Only use when no more specific complication code (T80-T88) can be assigned.
• Requires clear documentation linking the current condition to a past medical or surgical event.
• Always sequence after the code for the specific sequela (e.g., chronic pain, scar contracture) if known.