Example #2: Mapping an Approximate One-to-One Code

Find the ICD-9 code that you need to map to ICD-10 and enter the number into the ICD-9 code field. You may choose to use the drop-down list of Diagnosis Codes or simply enter an ICD-9 code into the field.
When you select a diagnosis code from the drop-down list, the Mapping occurs automatically and you do not need to click the Crosswalk button
Click the “Crosswalk” button (if needed) and the results will appear
In the example above, ICD-9 code 388.12 maps to an ICD-10 code of H83.3X9.
Looking at the final column, we also can see that the Approximate checkbox is checked.
From this information we can conclude that ICD-9 (333.94) and ICD-10 (G25.81) codes are directly equivalent (the best case of all!).
Clicking on the ICD-10 code will take you directly to the code in the Tabular Listing section
The code is now seen in its position in the Tabular Listing allowing you to view it.
Since this ICD-10 code is only approximately equivalent, study the surrounding codes closely to see if a more appropriate, more specific, or more detailed code exists.
For this example: the added option exists to identify the diagnosis as right ear, left ear, or both. Always select a more specific code if you can. Using “unspecified”, even when valid, can lead to possible rejections or underpayment.