Corros unsp deg mult right fngr (nail), not inc thumb, sqla

This code signifies a long-term or late-effect condition resulting from a chemical burn or corrosive exposure affecting multiple fingers on the right hand, excluding the thumb. The specific degree of the original burn is not documented or is unknown, and the sequela is localized to the nail area of these fingers.

Apply this code when documenting a current condition that is a direct consequence of a past corrosive injury to the right-hand fingers (excluding the thumb), specifically impacting the nail. This is appropriate for chronic nail deformities, dystrophies, or other persistent issues stemming from the original chemical burn, where the initial burn's severity was unspecified.

• Requires a seventh character "S" to indicate a sequela, meaning the acute injury has healed and the current condition is a residual effect.
• Do not use for acute corrosive injuries; this code is exclusively for the late effects.
• Ensure documentation clearly specifies "multiple right fingers" (excluding the thumb) and involvement of the "nail" to support this code.