Subluxation of interphalangeal joint of right thumb, init

This code signifies a partial dislocation of the joint within the right thumb, specifically an interphalangeal joint, where the joint surfaces are no longer in proper alignment but remain in partial contact. This injury typically results in pain, swelling, and limited range of motion in the affected thumb.

Use this code when documenting the initial treatment for a patient presenting with a subluxation of either the metacarpophalangeal (MCP) or interphalangeal (IP) joint of the right thumb. This applies to acute injuries where the patient is receiving active treatment for the condition.

• Ensure documentation clearly specifies "right thumb" and "interphalangeal joint" to support this code.
• Verify that the encounter is indeed the "initial encounter" for this specific injury. Subsequent care would require a different seventh character.
• Distinguish between a subluxation (partial dislocation) and a complete dislocation, as complete dislocations are coded differently.