Unsp open wound of left thumb w/o damage to nail, sequela

This code signifies a long-term complication or late effect resulting from an open wound on the left thumb. The original injury involved a break in the skin, but specifically did not damage the nail itself. The "unspecified" nature indicates that the precise type of open wound (e.g., laceration, puncture) is not documented.

Use this code when documenting a patient presenting with a current condition or symptom that is a direct consequence of a previously sustained open wound to the left thumb, where the original wound did not involve the nail. This would apply to conditions such as scar tissue formation, chronic pain, or functional limitations directly attributable to the old injury.

• Always sequence this code after the code describing the specific sequela (e.g., scar, chronic pain).
• Ensure documentation clearly links the current condition to the previous open wound of the left thumb.
• Verify that the original injury explicitly stated no nail damage; otherwise, a different code might be more appropriate.