Hydroxyapatite deposition disease, right hip

This code signifies a condition characterized by the abnormal deposition of calcium hydroxyapatite crystals within the soft tissues surrounding the right hip joint. This crystal deposition can lead to inflammation, pain, and restricted movement in the affected hip. It is a form of crystal arthropathy.

Apply this code when documentation explicitly states a diagnosis of hydroxyapatite deposition disease affecting the right hip. This diagnosis is typically supported by imaging studies (e.g., X-rays showing calcifications) and clinical findings consistent with crystal-induced arthropathy.

• Ensure the laterality (right hip) is clearly documented to support this specific code.
• Differentiate from other crystal arthropathies like gout or pseudogout, which involve different crystal types and have distinct codes.
• Consider co-reporting with codes for associated symptoms such as hip pain (e.g., M25.551) if documented and treated.