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

This code signifies a first-degree corrosion (chemical burn) affecting multiple fingers on the right hand, excluding the thumb. The burn specifically involves the nail or nail bed and represents a long-term complication or residual effect of the initial injury.

Apply this code when documenting the sequela of a superficial chemical burn to the nails of multiple right fingers (not the thumb). This would be used for follow-up encounters after the acute phase of the injury, addressing ongoing issues related to the nail damage.

• Ensure the documentation clearly specifies "sequela" or a long-term effect of the corrosion.
• Verify that the injury is to multiple right fingers, excluding the thumb, and involves the nail.
• Do not use for acute chemical burns; instead, select an acute corrosion code from the T23.0-T23.4 range.