Your patient complains of nausea and as part of your work-up, you decide to order fecal occult blood testing (FOBT / guaiac).

You determine that the appropriate diagnosis code is 787.02 (Nausea alone).
 

Use NCDMeister to ensure that the ICD-9 code you've chosen (787.02) will result in payment for the lab test.
 

Click on the Magnifying Glass icon at the bottom of the screen to open the Find window.

Here is the Find screen.
 

Click on the line next to Find: to enter the code we'll be searching for.

OK.  Now we've entered the code 787.02 we're looking for.  You can enter text using either Grafitti or your PDA's input keyboard (if provided).
 

Click the Find button to search NCDMeister for your code.

The search found 787.02 within NCDMeister.  Note that at the top of the screen in green are tests payable for these ICD-9 diagnosis codes.  Digoxin level, FOBT, and Hepatitis panel are all payable for these codes.
 

So we have confirmed that ICD-9 code 787.02 justifies payment from Medicare for Fecal Occult Blood testing.
 

Mission Accomplished!

If the search didn't find 787.02, you might want to consider choosing an alternate code that is payable by Medicare.  Choose this code by browsing from NCDMeister's home page.
 

Let's say the search found 787.02 but the test you were ordering wasn't listed at the top of the screen in green.
 

For example, if you were ordering a GGT instead of Fecal Occult Blood test you would do the search in the same way.  But because GGT isn't listed in green at the top of this screen, you would need to click the Find Again icon (Magnifying Glass with a + sign in it) to continue searching NCDMeister until either you find a screen that includes the 787.02 code AND has GGT in green at the top or until there are no more instances of the code found in NCDMeister.