Subluxation of metacarpophalangeal joint of unsp thumb, subs

This code signifies a partial dislocation of the joint connecting the thumb's metacarpal bone to its first phalanx, where the joint surfaces are still in partial contact. It specifically refers to an injury of unknown laterality, indicating the thumb involved is not specified. This diagnosis is used when the patient is receiving routine care during the healing or recovery phase of the injury.

Use this code for follow-up visits, cast changes, or ongoing physical therapy appointments for a subluxation of the metacarpophalangeal joint of an unspecified thumb. This applies after the initial treatment of the injury has been completed. It indicates that the patient is in the healing phase and not experiencing an acute injury.

• Ensure the documentation clearly states "subluxation" and not a complete dislocation.
• Verify that the encounter is for subsequent care, not the initial treatment of the injury.
• Only use this code when the medical record does not specify whether the right or left thumb is affected.