Mucopolysaccharidosis

This code identifies a group of inherited metabolic disorders characterized by the body's inability to properly break down mucopolysaccharides (glycosaminoglycans). This leads to the accumulation of these complex sugars in various tissues and organs, causing progressive cellular damage and a wide range of clinical manifestations.

Use this code for patients diagnosed with any of the specific types of mucopolysaccharidosis (e.g., Hurler syndrome, Hunter syndrome, Sanfilippo syndrome, Morquio syndrome). Documentation should clearly state the diagnosis of mucopolysaccharidosis, often confirmed by enzyme assays or genetic testing.

• Always strive to code to the highest level of specificity if a more detailed ICD-9-CM code for a specific type of mucopolysaccharidosis is available.
• Consider sequencing this code as a primary diagnosis when it is the main reason for the encounter, or as a secondary diagnosis when managing complications.
• Review documentation for associated manifestations (e.g., skeletal deformities, organomegaly, developmental delay) and code them separately as appropriate.