We use the 3m encoder, and I find that if I try to do a surgical debridement of skin alone, I get the 97597 with the ICD-9 of 8622. Conversely, if I try to do non-excisional debridement of SQ tissue, I get 11042 with ICD of 8628. This ends up reading non-excisional CPT with excisional ICD, and surgical/excisional with a non-excisional ICD. If anyone else uses a different encoder, I'd be interested to know what CPTs/ICDs show up for surgical debridement of skin and also non-excisional debridement of SQ. It's almost seeming like depth is the only criteria. Does surgical debridement have to be done with a scalpel? Our MDs rarely use scalpels for theirs. Also, I'd like to know if anyone knows a site that tells you the ICD-9s for the various skin substitutes out there. Per Nosology, I've been using 8665 for the Oasis (not the dressing, but the surgically fixed skin sub), and 8667 for most of the others.