Morquio B mucopolysaccharidoses

This code identifies Morquio B syndrome, also known as Mucopolysaccharidosis IVB (MPS IVB), a rare, inherited lysosomal storage disorder characterized by the body's inability to break down keratan sulfate. This leads to its accumulation in various tissues, primarily affecting the skeletal system, eyes, and heart. Patients typically present with skeletal dysplasia, short stature, corneal clouding, and often cardiac valve disease.

Use this code when documentation clearly indicates a confirmed diagnosis of Morquio B syndrome. This diagnosis is typically established through genetic testing, enzyme assays, and clinical presentation. It is appropriate for initial diagnosis, ongoing management, and reporting of complications directly related to MPS IVB.

• Ensure documentation specifies "Morquio B" or "MPS IVB" to differentiate from other Morquio types (e.g., Morquio A, which has a different code).
• Code any associated manifestations, such as skeletal deformities (e.g., kyphosis, scoliosis), corneal opacities, or cardiac valve disorders, as secondary diagnoses.
• Do not confuse with other mucopolysaccharidoses (MPS) types; each has a specific code within the E76 category.