External constriction of other part of head, sequela

This code describes the long-term effects or complications resulting from an external constriction injury to any part of the head not otherwise specified. This could include chronic pain, nerve damage, scarring, or functional impairment that persists after the initial constriction event has resolved. It signifies a residual condition rather than an acute injury.

Use this code when documenting a patient presenting with a sequela (late effect) directly attributable to a past external constriction injury of the head. Documentation should clearly state the causal link between the previous constriction and the current chronic condition, and specify that the injury occurred to an unspecified part of the head. This code is appropriate when the acute injury has healed but its lasting impact remains.

• Always sequence the sequela code first, followed by a code identifying the specific residual condition (e.g., chronic pain, scar).
• Ensure documentation explicitly states "sequela" or "late effect" and links the current condition to a past external constriction.
• Distinguish from acute constriction injuries (T74.XX) or specific body part constriction injuries (e.g., S00.83XS for eye/adnexa).