CPT® Code 83866

Deleted

1. Indications

The screening test for mucopolysaccharides is indicated for the evaluation of patients who may have metabolic disorders associated with the accumulation of glycosaminoglycans. The following conditions are explicitly associated with the need for this test:

• Hunter Syndrome A genetic disorder characterized by the deficiency of the enzyme iduronate-2-sulfatase, leading to the accumulation of mucopolysaccharides.
• Hurler Syndrome A severe genetic disorder caused by the deficiency of the enzyme alpha-L-iduronidase, resulting in the buildup of glycosaminoglycans.
• Sanfilippo Syndrome A group of metabolic disorders caused by the deficiency of enzymes needed to break down heparan sulfate, leading to its accumulation.
• Scheie Syndrome A milder form of mucopolysaccharidosis caused by the deficiency of the enzyme alpha-L-iduronidase, leading to the accumulation of glycosaminoglycans.
• Morquio Syndrome A genetic disorder caused by the deficiency of enzymes that break down keratan sulfate, resulting in its accumulation in the body.

2. Procedure

The procedure for conducting the mucopolysaccharides screening test involves several key steps to ensure accurate results. First, a urine specimen is collected, with the first morning void being the preferred sample due to its higher concentration of mucopolysaccharides. Alternatively, a 24-hour urine collection may be utilized to provide a comprehensive analysis of mucopolysaccharide levels over an entire day. Once the specimen is obtained, it is prepared for testing. The analysis is performed using electrophoresis, a technique that separates molecules based on their size and charge, followed by spectrophotometry, which quantifies the concentration of mucopolysaccharides present in the urine. This combination of methods allows for the effective screening of mucopolysaccharides, aiding in the diagnosis of potential metabolic disorders.

• Step 1: Specimen Collection A urine sample is collected, preferably the first morning void, or alternatively, a 24-hour urine specimen is gathered.
• Step 2: Sample Preparation The urine specimen is prepared for analysis to ensure accurate testing results.
• Step 3: Electrophoresis The prepared urine sample undergoes electrophoresis to separate mucopolysaccharides based on their size and charge.
• Step 4: Spectrophotometry Following electrophoresis, spectrophotometry is employed to quantify the levels of mucopolysaccharides in the urine sample.

3. Post-Procedure

After the mucopolysaccharides screening test is completed, the results are analyzed and interpreted by qualified healthcare professionals. Depending on the findings, further diagnostic testing may be recommended to confirm any suspected metabolic disorders. Patients may be advised on the next steps based on the results, which could include additional testing, referrals to specialists, or monitoring for symptoms associated with mucopolysaccharidosis. It is important for healthcare providers to communicate the results clearly to the patient and discuss any necessary follow-up actions or treatments that may be required.