Contusion of unsp thumb without damage to nail, sequela

This code describes the long-term effects or complications resulting from a past blunt force trauma to an unspecified thumb, where the nail itself was not damaged. It indicates that the initial injury has resolved, but residual symptoms or conditions persist.

Apply this code when documenting a patient presenting with chronic pain, stiffness, or other persistent issues in the thumb that are directly attributable to a previous contusion. This is appropriate for follow-up encounters after the initial healing phase of the contusion has passed.

• Always assign a seventh character 'S' for sequela when the patient is being seen for residual effects of a past injury.
• Ensure documentation clearly links the current symptoms to a prior thumb contusion.
• Do not use this code for the initial or active treatment phase of a contusion; use an acute contusion code instead.