Hydroxyapatite deposition disease, left shoulder

This code signifies a condition characterized by the deposition of hydroxyapatite crystals within the soft tissues of the left shoulder joint, leading to pain and inflammation. It is a form of crystal arthropathy, often presenting as calcific tendinitis or bursitis.

Apply this code when documentation explicitly states hydroxyapatite deposition disease affecting the left shoulder. This diagnosis is typically supported by imaging studies (e.g., X-ray, ultrasound) showing calcifications and clinical findings consistent with crystal-induced inflammation in the specified joint.

• Ensure the laterality (left shoulder) is clearly documented.
• Do not confuse with other crystal arthropathies like gout or pseudogout, which have distinct crystal compositions.
• Consider sequencing this code with codes for associated symptoms (e.g., M25.512 for pain in left shoulder) if applicable and not inherent to the primary diagnosis.