Unspecified subluxation of unspecified thumb, subs encntr

This code indicates a partial dislocation of the thumb joint where the specific joint involved (e.g., carpometacarpal, metacarpophalangeal, interphalangeal) is not documented. It signifies that the thumb is not fully dislocated but is out of alignment, and this is being addressed in a follow-up visit.

Apply this code for subsequent encounters when a patient presents for ongoing treatment or evaluation of a previously diagnosed, unspecified subluxation of the thumb. This includes follow-up appointments for physical therapy, re-evaluation, or monitoring of healing after initial treatment.

• Ensure documentation clearly states "subsequent encounter" for the thumb subluxation.
• Avoid using this code if the specific joint of the thumb (e.g., CMC, MCP, IP) is identified in the medical record.
• Do not use for initial treatment of a new injury; a code with an "A" (initial encounter) seventh character would be appropriate then.