External constriction of lip, sequela

This code describes the long-term effects or complications resulting from an external constriction injury to the lip. This could include scarring, disfigurement, nerve damage, or functional impairment (e.g., speech, eating) that persists after the initial injury has healed. It signifies that the constriction event is no longer acute but has left a lasting impact.

Use this code when documenting a patient presenting with a chronic condition or residual problem directly attributable to a past external constriction injury of the lip. Documentation should clearly link the current sequela to the previous injury and indicate that the acute phase of the injury has passed. Examples include persistent numbness, altered sensation, or cosmetic deformity following a past tight binding or crushing injury to the lip.

• Always use this code as a secondary diagnosis, following the code for the specific nature of the sequela (e.g., scar, nerve damage).
• Ensure the medical record explicitly states the condition is a "sequela" or "late effect" of a past external constriction.
• Distinguish from acute injuries; this code is for chronic, residual conditions, not the initial injury itself.