Contusion of left thumb without damage to nail, sequela

This code signifies a healed injury or a late effect resulting from a past contusion (bruise) to the left thumb. It indicates that the initial injury has resolved, but there are residual symptoms or conditions directly attributable to that prior trauma, without involvement of the nail.

This code is appropriate for documenting the long-term consequences of a left thumb contusion, such as chronic pain, stiffness, or altered sensation, after the acute phase of the injury has passed. It should be used when the patient is presenting for treatment or evaluation of these persistent issues.

• Requires a seventh character "S" to indicate sequela, meaning the patient is being seen for a complication or late effect of the initial injury.
• Ensure documentation clearly links the current symptoms to a previously sustained left thumb contusion.
• Do not use for acute contusions; refer to codes without the "S" seventh character for initial encounters.