ICD-10 For Flap Failure

Question:

We have a reconstructed breast with a free flap, but the flap is no longer viable and requires removal. What would be the appropriate ICD-10 code for Flap Failure to assign for this encounter?

Answer:

Thank you for your inquiry.

There is no specific ICD-10 code for this. Reporting a complication code would be appropriate to describe the flap failure. Given the lack of specifics on the cause of the flap failure, some may look to assign an unspecified ICD-10 code. However, AHA directs to report ICD-10 T85.898A for flap failure.

• T85.898A - Other specified complication of other internal prosthetic devices, implants and grafts, initial encounter

*This response is based on the best information available as of 4/10/25.