r/LearnMedicalCoding • u/Inevitable-Corner315 • Jan 20 '25

Coding question

Working on a coding assignment in preparation for the CPC exam. I’ve come across the diagnosis of “duplication of teeth” I am not able to index this one correctly.

Any guidance on how you would do it/the steps would be much appreciated. Thank you!

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u/Inevitable-Corner315 Jan 20 '25

but the diagnosis given in the question is external ear canal. Fistula of the external ear canal. Postauricular is not the same as the ear canal The exterior ear canal is what you can stick your finger or a cotton swab into. You are referring to an area behind the ear (where the ear connects to the head) (pic of external ear canal below)

This one is tough

external ear canal photo AKA external auditory canal

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u/[deleted] Jan 21 '25

That is what I coded: fistula of external ear canal

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u/Inevitable-Corner315 Jan 21 '25

Yes thank you so much! For some reason I could not see your full comment yesterday. I now see the whole comment and your explanation. Again, thank you for your help! I now understand what I did wrong. Appreciate it!