Q&A: Coding for a pressure ulcer on the coccyx

QUESTION: We have different views in our coding department for how to code a coccyx pressure ulcer. Various staff members say that we should report one of the following ICD-9-CM codes:

  • 707.03 (pressure ulcer of the lower back [coccyx, sacrum])
  • 707.05 (pressure ulcer of the buttock)
  • 707.09 (pressure ulcer of other site)

In my view, code 707.09 is correct, as the coccyx is the bone between the buttocks. Your help is greatly appreciated.

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