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Diagnosis codes for nonunion subtalar joint fusion

Lion21@

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I have a patient that's come in 11 months status post subtalar joint fusion. Conformation from CT scan nonunion subtalar joint. The original diagnosis for surgery was osteoarthritis.

How would you code the nonunion?
Do I code this as a complication T84.9XXA (unspecified complication of internal orthopedic prosthetic device, implant and graft) or am I missing it?

Help would be greatly appreciated!
 

Gator

Contributor
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Look at M96.0 Pseudarthrosis after fusion or arthrodesis or Z98.1 Arthrodesis status.
 
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