Other sprain of right thumb, sequela

This code signifies a chronic or late-effect injury involving a sprain to the right thumb, specifically when the acute phase of the injury has passed, and the patient is experiencing residual symptoms or complications. It indicates that the sprain is not a recent event but rather a lingering issue.

Apply this code when documenting conditions like chronic pain, instability, stiffness, or weakness in the right thumb that are directly attributable to a past sprain. This is appropriate for follow-up visits where the initial injury has healed, but ongoing sequelae require management.

• Always link this code to an external cause code (V00-Y99) if the original cause of the sprain is known and relevant.
• Ensure documentation clearly states the chronic nature of the sprain and its lasting effects, distinguishing it from an acute injury.
• Do not use this code for initial encounters or acute sprains; those require codes from the acute injury categories.