52.13 Endoscopic retrograde pancreatography [ERP]
Excludes:
endoscopic retrograde:
cholangiography [ERC] (51.11)
cholangiopancreatography [ERCP] (51.10)
that for procedures classifiabl to 51.14-51.15, 51.64, 51.84-51.88, 52.14, 52.21, 52.92-52.94, 52.97-52.98