Hydroxyapatite deposition disease, left hand

This code represents a form of crystal deposition arthropathy affecting the left hand, characterized by the accumulation of basic calcium phosphate (hydroxyapatite) crystals in and around joints. This deposition can lead to acute or chronic pain, inflammation, and functional impairment in the affected hand.

Use this code when documentation specifies hydroxyapatite deposition disease localized to the left hand. This diagnosis is typically confirmed through imaging studies (e.g., X-ray showing calcifications) and clinical presentation of pain and swelling. It is appropriate for both acute calcific periarthritis and chronic forms of the disease.

• Ensure the laterality (left hand) is clearly documented to support this specific code.
• Differentiate from other crystal arthropathies like gout (M10.-) or pseudogout (M11.1-), which involve different crystal types.
• Look for documentation of imaging findings (e.g., "calcific deposits noted in left wrist tendons") to support the diagnosis.