Other specified crystal arthropathies, right shoulder

This code signifies an inflammatory joint condition of the right shoulder caused by the deposition of crystals other than those typically associated with gout (monosodium urate) or pseudogout (calcium pyrophosphate dihydrate). These crystals, such as calcium oxalate or cholesterol, trigger an immune response leading to pain, swelling, and reduced range of motion in the shoulder joint.

Apply this code when documentation specifies a crystal arthropathy affecting the right shoulder, and the specific type of crystal is identified but does not fall under gout or pseudogout. This diagnosis is typically confirmed through synovial fluid analysis revealing the presence of atypical crystals.

• Ensure the documentation explicitly states "right shoulder" and specifies a crystal arthropathy that is not gout or pseudogout.
• Do not use for unspecified crystal arthropathies; a more specific code would be M11.9-.
• Consider sequencing this code after any underlying systemic conditions contributing to crystal formation, if applicable.