Open bite of r bk wl of thorax w/o penet thor cavity, sqla

This code signifies a healed or residual effect from an open wound to the posterior aspect of the right chest wall, which did not extend into the thoracic cavity. The "sequela" indicates that the initial injury has resolved, but the patient is still experiencing a long-term complication or condition directly resulting from that past trauma.

Use this code when documenting a chronic issue, such as scarring, pain, or functional limitation, that is a direct consequence of a previously sustained open bite wound to the right back wall of the thorax. This applies when the original injury has fully healed, and the current encounter is for the management of these persistent after-effects.

• Always append the 7th character "S" for sequela when the encounter is for the late effects of the injury.
• Code the specific sequela (e.g., scar, chronic pain) first, followed by this external cause code.
• Ensure documentation clearly links the current condition to the past open bite injury.