Subluxation of carpometacarpal joint of right thumb, sequela

This code indicates a chronic or late effect of a partial dislocation of the joint connecting the thumb's metacarpal bone to the wrist bones on the right hand. This subluxation implies that the joint surfaces are no longer perfectly aligned but still maintain some contact. The "sequela" designation signifies that this is a residual condition or complication arising from an initial injury.

This code is appropriate when documenting a patient presenting with ongoing symptoms such as pain, instability, or limited range of motion in the right thumb's carpometacarpal joint, where these symptoms are a direct result of a previously sustained subluxation. It is used when the acute phase of the original injury has passed, and the current encounter addresses the long-term consequences.

• Always ensure documentation clearly links the current subluxation to a prior injury.
• Verify laterality (right thumb) is explicitly stated in the medical record.
• Do not use for acute or initial subluxations; this code is specifically for sequelae.