I need help in shedding some light on how to correctly code a diagnosis. We have a debate going on in our office regarding how to code a diagnosis of pain of the metatarsus of the right foot. The majority says the code would be metatarsalgia (M77.41.) Others say M89.8x7. I am trying to understand how to get to the correct code. If someone could explain which code is right and why, it would be greatly appreciated. Thanks so much for any help!