Here's what you should look for in your physician's documentation. When ICD-9 becomes ICD-10 in 2013, you'll need to get familiar with different sections in the new diagnosis code system, even if the condition you're reporting has a simple one-to-one crosswalk. Check out these hiatal hernia diagnoses and discover what you'll report after October 1, 2013. When your surgeon performs a hiatal hernia repair, you might need to report a diaphragm hernia or a specific congenital hiatal hernia, depending on the physician's documentation. Look to these code choices for ICD-9 and the one-toone crosswalk for ICD-10: Coder tips: You can use this example to start getting familiar with changes you'll need to implement in 2013. Diseases of the digestive system are in sections 520-579 for ICD-9 and in K00-K94 for ICD-10. Congenital anomalies are in sections 740-759 for ICD-9, but ICD-10 contains a much broader scope of congenital malformations, deformations, and chromosomal abnormalities in sections Q00-Q99.