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B21F Bypass Graft, Other
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B21F0 High Osmolar
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B21F01 Laser
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B21F0Z None
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B21F0ZZFluoroscopy of Other Bypass Graft using High Osmolar Contrast
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-
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B21F1 Low Osmolar
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B21F11 Laser
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B21F1Z None
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B21F1ZZFluoroscopy of Other Bypass Graft using Low Osmolar Contrast
-
-
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B21FY Other Contrast
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B21FY1 Laser
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B21FYZ None
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B21FYZZFluoroscopy of Other Bypass Graft using Other Contrast
-
-
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