Unsp opn wnd l bk wl of thorax w/o penet thor cavity, sqla

This code signifies a past, unresolved open wound located on the left posterior aspect of the chest, which did not extend into the thoracic cavity. The "sequela" designation indicates that this code is used to report a current problem or condition that is a residual effect of the original wound.

Use this code when documenting a current complication or long-term consequence directly resulting from a previous open wound to the left back wall of the thorax. This applies when the initial injury has healed, but its effects, such as scarring, chronic pain, or nerve damage, are still being addressed.

• Ensure the documentation clearly links the current condition to a previous open wound of the left back wall of the thorax.
• Do not use this code for acute injuries; it is specifically for sequelae.
• Always code the specific sequela (e.g., scar, chronic pain) first, followed by this code to indicate the cause.