Postimmunization arthropathy, left shoulder

This code signifies joint pain and inflammation in the left shoulder that develops as an adverse reaction following an immunization. It represents a sterile inflammatory response within the joint, not an infection, directly attributable to a vaccine.

Apply this code when documentation clearly links new-onset left shoulder arthropathy to a recent vaccination. This typically involves symptoms like pain, swelling, and reduced range of motion in the left shoulder, with a temporal relationship to vaccine administration and exclusion of other causes.

• Ensure documentation specifies "left shoulder" and explicitly links the arthropathy to an immunization.
• Do not use this code for infectious arthritis or arthropathy due to other causes; a clear post-immunization etiology is required.
• Consider an additional code for the specific vaccine administered (e.g., Z23 for encounters for immunization) if relevant for tracking adverse events.