Subluxation of interphalangeal joint of thmb, init

This code signifies a partial dislocation of the joint within the thumb, where the joint surfaces are no longer perfectly aligned but remain in contact. It specifically refers to the initial treatment or evaluation of such an injury to an unspecified interphalangeal joint of the thumb.

This code is appropriate for documenting the first encounter with a patient presenting with a subluxation of the thumb's interphalangeal joint, where the specific joint (e.g., IP joint) is not documented. This would include initial examinations, diagnostic imaging, and the beginning of treatment for the injury.

• Ensure documentation clearly states "subluxation" rather than a complete "dislocation" to differentiate from S63.13-.
• Verify that this is indeed the initial encounter for treatment of this specific injury; subsequent encounters will use a different seventh character.
• If the specific interphalangeal joint (e.g., IP joint) of the thumb is documented, a more specific code should be selected.