Sprain of interphalangeal joint of unsp thumb, sequela

This code signifies a long-term or late-effect complication resulting from a sprain to the interphalangeal joint of either the right or left thumb, where the specific thumb is not documented. This could include chronic pain, stiffness, or instability that persists after the initial healing phase of the sprain.

Apply this code when documentation indicates a patient is experiencing residual symptoms or conditions directly attributable to a past interphalangeal joint sprain of an unspecified thumb. This is appropriate for follow-up encounters addressing chronic issues rather than the initial acute injury.

• Always sequence this code after the code for the primary condition or sequela being treated.
• Ensure the medical record clearly states the thumb is unspecified if laterality is not documented.
• Confirm the encounter is for a late effect, not an acute or subacute injury.