Unsp open wound of other finger with damage to nail, sequela

This code signifies a long-term complication or late effect stemming from an unspecified open wound on a finger other than the thumb, index, or middle finger. The key characteristic is the presence of damage to the nail or nail bed as a result of the original injury. This could include nail deformity, chronic infection, or loss of the nail.

Apply this code when documenting a patient presenting with a current issue directly attributable to a past open wound of a finger (excluding thumb, index, or middle) where the nail was also affected. This is appropriate for follow-up encounters addressing residual problems from the initial injury, such as a permanently deformed nail or chronic paronychia.

• Always use this code as a secondary diagnosis, following the code for the specific sequela being treated.
• Ensure documentation clearly links the current nail damage to a previous open finger wound.
• The "S" in the 7th character indicates sequela; do not use for initial or subsequent encounters for the acute injury.