Subluxation of distal end of unspecified ulna, init encntr

This diagnosis code indicates a partial dislocation of the distal ulna, where the joint surfaces are no longer in proper alignment but remain in partial contact. This injury affects the lower end of the ulna bone, which is one of the two long bones in the forearm, and the specific side (left or right) is not documented.

This code is appropriate for the initial encounter of a patient presenting with a subluxation of the distal ulna where the laterality is not specified in the medical record. This could result from trauma, such as a fall onto an outstretched hand, or other mechanisms causing wrist instability.

• Ensure documentation clearly states "subluxation" rather than a complete "dislocation" for accurate code assignment.
• Only use this code for the initial encounter for this specific injury; subsequent care would require a different encounter character.
• If laterality (left or right) is documented, a more specific code should be selected.