Corros unsp degree of unsp single finger except thumb, sqla

This code signifies a long-term complication or late effect resulting from a chemical burn (corrosion) to an unspecified single finger, excluding the thumb. The severity of the original chemical burn is not specified, and the current condition represents a residual problem after the acute injury has healed.

Use this code when documenting a chronic issue, such as scarring, contracture, or nerve damage, that is directly attributable to a past chemical burn on a finger (not the thumb). This applies when the acute phase of the injury has passed, and the patient is presenting for treatment of these lasting effects.

• Requires a seventh character "S" to indicate sequela, meaning the patient is being seen for a late effect of the injury.
• Ensure documentation clearly links the current condition to a previous chemical burn of a finger.
• Do not use for acute chemical burns; those require codes from the T23.0-T23.3 series.