Familial chondrocalcinosis, left shoulder

This code signifies a genetic predisposition to calcium pyrophosphate dihydrate (CPPD) crystal deposition in the cartilage of the left shoulder joint. This condition leads to inflammation and degenerative changes, often manifesting as acute or chronic arthritis.

Apply this code when documentation explicitly states familial chondrocalcinosis affecting the left shoulder. This diagnosis is typically supported by imaging findings (e.g., radiography showing chondrocalcinosis) and a family history consistent with CPPD disease.

• Ensure laterality is clearly documented as "left shoulder" to support this specific code.
• Distinguish from acquired or idiopathic chondrocalcinosis, which would require different codes.
• Consider sequencing this code as the primary diagnosis if it is the main reason for the encounter, followed by any associated symptoms or complications.