Familial chondrocalcinosis, unspecified hip

This code signifies a genetic disorder characterized by the deposition of calcium pyrophosphate dihydrate crystals within the cartilage of the hip joint, leading to inflammation and degenerative changes. It represents a hereditary form of chondrocalcinosis affecting an unspecified hip.

Apply this code when documentation confirms a diagnosis of familial chondrocalcinosis specifically affecting the hip, without further specification of laterality. Supporting documentation should include a family history of chondrocalcinosis, radiographic evidence of CPPD crystal deposition in the hip, and/or synovial fluid analysis confirming CPPD crystals.

• Ensure "familial" or "hereditary" is explicitly documented; otherwise, consider M11.25- for other chondrocalcinosis.
• If laterality (right or left hip) is specified, use the more precise codes M11.151 or M11.152.
• Code any associated osteoarthritis or other joint degeneration separately, as appropriate.