External constriction of oral cavity, sequela

This code signifies a long-term complication or late effect resulting from an external constriction affecting the oral cavity. This could stem from various past injuries, medical interventions, or environmental factors that caused a narrowing or compression of the mouth area. The "sequela" indicates that the acute phase of the constriction has passed, and the patient is now experiencing residual problems.

Use this code when documenting a patient presenting with a current condition directly attributable to a resolved external constriction of the oral cavity. Documentation should clearly link the current oral cavity issue (e.g., limited mouth opening, speech difficulties, feeding problems) to a prior external constrictive event. This code is appropriate for follow-up care related to such a past event.

• Always sequence the code for the specific sequela (e.g., trismus, dysphagia) first, followed by this sequela code.
• Ensure documentation explicitly states the external constriction is a past event and the current condition is a late effect.
• Do not use for acute or active external constriction; those would be coded with the appropriate acute injury or condition codes.