Corros third degree of single l finger except thumb, sqla

This code signifies a healed or residual condition resulting from a severe chemical burn (corrosion) affecting a single finger on the left hand, excluding the thumb. The injury involved full-thickness skin destruction, extending through all layers of the skin and potentially into underlying tissue, and is no longer in the acute phase.

Apply this code when documenting the long-term effects or complications of a third-degree chemical burn to a left finger (excluding the thumb), such as scarring, contractures, or chronic pain, after the initial injury has healed. This code is appropriate for follow-up visits where the sequela of the corrosion is being addressed.

• This "S" code indicates a sequela, meaning it should be used for complications or conditions arising from a previous injury, not the acute injury itself.
• Ensure the documentation clearly specifies the left hand and a single finger other than the thumb.
• Always code the sequela first, followed by any associated current conditions or manifestations.