| L88 | Pyoderma gangrenosum |
| L97.101 | Non-pressure chronic ulcer of unspecified thigh limited to breakdown of skin |
| L97.102 | Non-pressure chronic ulcer of unspecified thigh with fat layer exposed |
| L97.103 | Non-pressure chronic ulcer of unspecified thigh with necrosis of muscle |
| L97.104 | Non-pressure chronic ulcer of unspecified thigh with necrosis of bone |
| L97.105 | Non-pressure chronic ulcer of unspecified thigh with muscle involvement without evidence of necrosis |
| L97.106 | Non-pressure chronic ulcer of unspecified thigh with bone involvement without evidence of necrosis |
| L97.108 | Non-pressure chronic ulcer of unspecified thigh with other specified severity |
| L97.109 | Non-pressure chronic ulcer of unspecified thigh with unspecified severity |
| L97.111 | Non-pressure chronic ulcer of right thigh limited to breakdown of skin |
| L97.112 | Non-pressure chronic ulcer of right thigh with fat layer exposed |
| L97.113 | Non-pressure chronic ulcer of right thigh with necrosis of muscle |
| L97.114 | Non-pressure chronic ulcer of right thigh with necrosis of bone |
| L97.115 | Non-pressure chronic ulcer of right thigh with muscle involvement without evidence of necrosis |
| L97.116 | Non-pressure chronic ulcer of right thigh with bone involvement without evidence of necrosis |
| L97.118 | Non-pressure chronic ulcer of right thigh with other specified severity |
| L97.119 | Non-pressure chronic ulcer of right thigh with unspecified severity |
| L97.121 | Non-pressure chronic ulcer of left thigh limited to breakdown of skin |
| L97.122 | Non-pressure chronic ulcer of left thigh with fat layer exposed |
| L97.123 | Non-pressure chronic ulcer of left thigh with necrosis of muscle |
| L97.124 | Non-pressure chronic ulcer of left thigh with necrosis of bone |
| L97.125 | Non-pressure chronic ulcer of left thigh with muscle involvement without evidence of necrosis |
| L97.126 | Non-pressure chronic ulcer of left thigh with bone involvement without evidence of necrosis |
| L97.128 | Non-pressure chronic ulcer of left thigh with other specified severity |
| L97.129 | Non-pressure chronic ulcer of left thigh with unspecified severity |
| L97.201 | Non-pressure chronic ulcer of unspecified calf limited to breakdown of skin |
| L97.202 | Non-pressure chronic ulcer of unspecified calf with fat layer exposed |
| L97.203 | Non-pressure chronic ulcer of unspecified calf with necrosis of muscle |
| L97.204 | Non-pressure chronic ulcer of unspecified calf with necrosis of bone |
| L97.205 | Non-pressure chronic ulcer of unspecified calf with muscle involvement without evidence of necrosis |
| L97.206 | Non-pressure chronic ulcer of unspecified calf with bone involvement without evidence of necrosis |
| L97.208 | Non-pressure chronic ulcer of unspecified calf with other specified severity |
| L97.209 | Non-pressure chronic ulcer of unspecified calf with unspecified severity |
| L97.211 | Non-pressure chronic ulcer of right calf limited to breakdown of skin |
| L97.212 | Non-pressure chronic ulcer of right calf with fat layer exposed |
| L97.213 | Non-pressure chronic ulcer of right calf with necrosis of muscle |
| L97.214 | Non-pressure chronic ulcer of right calf with necrosis of bone |
| L97.215 | Non-pressure chronic ulcer of right calf with muscle involvement without evidence of necrosis |
| L97.216 | Non-pressure chronic ulcer of right calf with bone involvement without evidence of necrosis |
| L97.218 | Non-pressure chronic ulcer of right calf with other specified severity |
| L97.219 | Non-pressure chronic ulcer of right calf with unspecified severity |
| L97.221 | Non-pressure chronic ulcer of left calf limited to breakdown of skin |
| L97.222 | Non-pressure chronic ulcer of left calf with fat layer exposed |
| L97.223 | Non-pressure chronic ulcer of left calf with necrosis of muscle |
| L97.224 | Non-pressure chronic ulcer of left calf with necrosis of bone |
| L97.225 | Non-pressure chronic ulcer of left calf with muscle involvement without evidence of necrosis |
| L97.226 | Non-pressure chronic ulcer of left calf with bone involvement without evidence of necrosis |
| L97.228 | Non-pressure chronic ulcer of left calf with other specified severity |
| L97.229 | Non-pressure chronic ulcer of left calf with unspecified severity |
| L97.301 | Non-pressure chronic ulcer of unspecified ankle limited to breakdown of skin |
| L97.302 | Non-pressure chronic ulcer of unspecified ankle with fat layer exposed |
| L97.303 | Non-pressure chronic ulcer of unspecified ankle with necrosis of muscle |
| L97.304 | Non-pressure chronic ulcer of unspecified ankle with necrosis of bone |
| L97.305 | Non-pressure chronic ulcer of unspecified ankle with muscle involvement without evidence of necrosis |
| L97.306 | Non-pressure chronic ulcer of unspecified ankle with bone involvement without evidence of necrosis |
| L97.308 | Non-pressure chronic ulcer of unspecified ankle with other specified severity |
| L97.309 | Non-pressure chronic ulcer of unspecified ankle with unspecified severity |
| L97.311 | Non-pressure chronic ulcer of right ankle limited to breakdown of skin |
| L97.312 | Non-pressure chronic ulcer of right ankle with fat layer exposed |
| L97.313 | Non-pressure chronic ulcer of right ankle with necrosis of muscle |
| L97.314 | Non-pressure chronic ulcer of right ankle with necrosis of bone |
| L97.315 | Non-pressure chronic ulcer of right ankle with muscle involvement without evidence of necrosis |
| L97.316 | Non-pressure chronic ulcer of right ankle with bone involvement without evidence of necrosis |
| L97.318 | Non-pressure chronic ulcer of right ankle with other specified severity |
| L97.319 | Non-pressure chronic ulcer of right ankle with unspecified severity |
| L97.321 | Non-pressure chronic ulcer of left ankle limited to breakdown of skin |
| L97.322 | Non-pressure chronic ulcer of left ankle with fat layer exposed |
| L97.323 | Non-pressure chronic ulcer of left ankle with necrosis of muscle |
| L97.324 | Non-pressure chronic ulcer of left ankle with necrosis of bone |
| L97.325 | Non-pressure chronic ulcer of left ankle with muscle involvement without evidence of necrosis |
| L97.326 | Non-pressure chronic ulcer of left ankle with bone involvement without evidence of necrosis |
| L97.328 | Non-pressure chronic ulcer of left ankle with other specified severity |
| L97.329 | Non-pressure chronic ulcer of left ankle with unspecified severity |
| L97.401 | Non-pressure chronic ulcer of unspecified heel and midfoot limited to breakdown of skin |
| L97.402 | Non-pressure chronic ulcer of unspecified heel and midfoot with fat layer exposed |
| L97.403 | Non-pressure chronic ulcer of unspecified heel and midfoot with necrosis of muscle |
| L97.404 | Non-pressure chronic ulcer of unspecified heel and midfoot with necrosis of bone |
| L97.405 | Non-pressure chronic ulcer of unspecified heel and midfoot with muscle involvement without evidence of necrosis |
| L97.406 | Non-pressure chronic ulcer of unspecified heel and midfoot with bone involvement without evidence of necrosis |
| L97.408 | Non-pressure chronic ulcer of unspecified heel and midfoot with other specified severity |
| L97.409 | Non-pressure chronic ulcer of unspecified heel and midfoot with unspecified severity |
| L97.411 | Non-pressure chronic ulcer of right heel and midfoot limited to breakdown of skin |
| L97.412 | Non-pressure chronic ulcer of right heel and midfoot with fat layer exposed |
| L97.413 | Non-pressure chronic ulcer of right heel and midfoot with necrosis of muscle |
| L97.414 | Non-pressure chronic ulcer of right heel and midfoot with necrosis of bone |
| L97.415 | Non-pressure chronic ulcer of right heel and midfoot with muscle involvement without evidence of necrosis |
| L97.416 | Non-pressure chronic ulcer of right heel and midfoot with bone involvement without evidence of necrosis |
| L97.418 | Non-pressure chronic ulcer of right heel and midfoot with other specified severity |
| L97.419 | Non-pressure chronic ulcer of right heel and midfoot with unspecified severity |
| L97.421 | Non-pressure chronic ulcer of left heel and midfoot limited to breakdown of skin |
| L97.422 | Non-pressure chronic ulcer of left heel and midfoot with fat layer exposed |
| L97.423 | Non-pressure chronic ulcer of left heel and midfoot with necrosis of muscle |
| L97.424 | Non-pressure chronic ulcer of left heel and midfoot with necrosis of bone |
| L97.425 | Non-pressure chronic ulcer of left heel and midfoot with muscle involvement without evidence of necrosis |
| L97.426 | Non-pressure chronic ulcer of left heel and midfoot with bone involvement without evidence of necrosis |
| L97.428 | Non-pressure chronic ulcer of left heel and midfoot with other specified severity |
| L97.429 | Non-pressure chronic ulcer of left heel and midfoot with unspecified severity |
| L97.505 | Non-pressure chronic ulcer of other part of unspecified foot with muscle involvement without evidence of necrosis |
| L97.506 | Non-pressure chronic ulcer of other part of unspecified foot with bone involvement without evidence of necrosis |
| L97.508 | Non-pressure chronic ulcer of other part of unspecified foot with other specified severity |
| L97.515 | Non-pressure chronic ulcer of other part of right foot with muscle involvement without evidence of necrosis |
| L97.516 | Non-pressure chronic ulcer of other part of right foot with bone involvement without evidence of necrosis |
| L97.518 | Non-pressure chronic ulcer of other part of right foot with other specified severity |
| L97.525 | Non-pressure chronic ulcer of other part of left foot with muscle involvement without evidence of necrosis |
| L97.526 | Non-pressure chronic ulcer of other part of left foot with bone involvement without evidence of necrosis |
| L97.528 | Non-pressure chronic ulcer of other part of left foot with other specified severity |
| L97.801 | Non-pressure chronic ulcer of other part of unspecified lower leg limited to breakdown of skin |
| L97.802 | Non-pressure chronic ulcer of other part of unspecified lower leg with fat layer exposed |
| L97.803 | Non-pressure chronic ulcer of other part of unspecified lower leg with necrosis of muscle |
| L97.804 | Non-pressure chronic ulcer of other part of unspecified lower leg with necrosis of bone |
| L97.805 | Non-pressure chronic ulcer of other part of unspecified lower leg with muscle involvement without evidence of necrosis |
| L97.806 | Non-pressure chronic ulcer of other part of unspecified lower leg with bone involvement without evidence of necrosis |
| L97.808 | Non-pressure chronic ulcer of other part of unspecified lower leg with other specified severity |
| L97.809 | Non-pressure chronic ulcer of other part of unspecified lower leg with unspecified severity |
| L97.811 | Non-pressure chronic ulcer of other part of right lower leg limited to breakdown of skin |
| L97.812 | Non-pressure chronic ulcer of other part of right lower leg with fat layer exposed |
| L97.813 | Non-pressure chronic ulcer of other part of right lower leg with necrosis of muscle |
| L97.814 | Non-pressure chronic ulcer of other part of right lower leg with necrosis of bone |
| L97.815 | Non-pressure chronic ulcer of other part of right lower leg with muscle involvement without evidence of necrosis |
| L97.816 | Non-pressure chronic ulcer of other part of right lower leg with bone involvement without evidence of necrosis |
| L97.818 | Non-pressure chronic ulcer of other part of right lower leg with other specified severity |
| L97.819 | Non-pressure chronic ulcer of other part of right lower leg with unspecified severity |
| L97.821 | Non-pressure chronic ulcer of other part of left lower leg limited to breakdown of skin |
| L97.822 | Non-pressure chronic ulcer of other part of left lower leg with fat layer exposed |
| L97.823 | Non-pressure chronic ulcer of other part of left lower leg with necrosis of muscle |
| L97.824 | Non-pressure chronic ulcer of other part of left lower leg with necrosis of bone |
| L97.825 | Non-pressure chronic ulcer of other part of left lower leg with muscle involvement without evidence of necrosis |
| L97.826 | Non-pressure chronic ulcer of other part of left lower leg with bone involvement without evidence of necrosis |
| L97.828 | Non-pressure chronic ulcer of other part of left lower leg with other specified severity |
| L97.829 | Non-pressure chronic ulcer of other part of left lower leg with unspecified severity |
| L97.901 | Non-pressure chronic ulcer of unspecified part of unspecified lower leg limited to breakdown of skin |
| L97.902 | Non-pressure chronic ulcer of unspecified part of unspecified lower leg with fat layer exposed |
| L97.903 | Non-pressure chronic ulcer of unspecified part of unspecified lower leg with necrosis of muscle |
| L97.904 | Non-pressure chronic ulcer of unspecified part of unspecified lower leg with necrosis of bone |
| L97.905 | Non-pressure chronic ulcer of unspecified part of unspecified lower leg with muscle involvement without evidence of necrosis |
| L97.906 | Non-pressure chronic ulcer of unspecified part of unspecified lower leg with bone involvement without evidence of necrosis |
| L97.908 | Non-pressure chronic ulcer of unspecified part of unspecified lower leg with other specified severity |
| L97.909 | Non-pressure chronic ulcer of unspecified part of unspecified lower leg with unspecified severity |
| L97.911 | Non-pressure chronic ulcer of unspecified part of right lower leg limited to breakdown of skin |
| L97.912 | Non-pressure chronic ulcer of unspecified part of right lower leg with fat layer exposed |
| L97.913 | Non-pressure chronic ulcer of unspecified part of right lower leg with necrosis of muscle |
| L97.914 | Non-pressure chronic ulcer of unspecified part of right lower leg with necrosis of bone |
| L97.915 | Non-pressure chronic ulcer of unspecified part of right lower leg with muscle involvement without evidence of necrosis |
| L97.916 | Non-pressure chronic ulcer of unspecified part of right lower leg with bone involvement without evidence of necrosis |
| L97.918 | Non-pressure chronic ulcer of unspecified part of right lower leg with other specified severity |
| L97.919 | Non-pressure chronic ulcer of unspecified part of right lower leg with unspecified severity |
| L97.921 | Non-pressure chronic ulcer of unspecified part of left lower leg limited to breakdown of skin |
| L97.922 | Non-pressure chronic ulcer of unspecified part of left lower leg with fat layer exposed |
| L97.923 | Non-pressure chronic ulcer of unspecified part of left lower leg with necrosis of muscle |
| L97.924 | Non-pressure chronic ulcer of unspecified part of left lower leg with necrosis of bone |
| L97.925 | Non-pressure chronic ulcer of unspecified part of left lower leg with muscle involvement without evidence of necrosis |
| L97.926 | Non-pressure chronic ulcer of unspecified part of left lower leg with bone involvement without evidence of necrosis |
| L97.928 | Non-pressure chronic ulcer of unspecified part of left lower leg with other specified severity |
| L97.929 | Non-pressure chronic ulcer of unspecified part of left lower leg with unspecified severity |
| L98.3 | Eosinophilic cellulitis [Wells] |
| L98.415 | Non-pressure chronic ulcer of buttock with muscle involvement without evidence of necrosis |
| L98.416 | Non-pressure chronic ulcer of buttock with bone involvement without evidence of necrosis |
| L98.418 | Non-pressure chronic ulcer of buttock with other specified severity |
| L98.425 | Non-pressure chronic ulcer of back with muscle involvement without evidence of necrosis |
| L98.426 | Non-pressure chronic ulcer of back with bone involvement without evidence of necrosis |
| L98.428 | Non-pressure chronic ulcer of back with other specified severity |
| L98.433 | Non-pressure chronic ulcer of abdomen with necrosis of muscle |
| L98.434 | Non-pressure chronic ulcer of abdomen with necrosis of bone |
| L98.435 | Non-pressure chronic ulcer of abdomen with muscle involvement without evidence of necrosis |
| L98.436 | Non-pressure chronic ulcer of abdomen with bone involvement without evidence of necrosis |
| L98.438 | Non-pressure chronic ulcer of abdomen with other specified severity |
| L98.443 | Non-pressure chronic ulcer of chest with necrosis of muscle |
| L98.444 | Non-pressure chronic ulcer of chest with necrosis of bone |
| L98.445 | Non-pressure chronic ulcer of chest with muscle involvement without evidence of necrosis |
| L98.446 | Non-pressure chronic ulcer of chest with bone involvement without evidence of necrosis |
| L98.448 | Non-pressure chronic ulcer of chest with other specified severity |
| L98.453 | Non-pressure chronic ulcer of neck with necrosis of muscle |
| L98.454 | Non-pressure chronic ulcer of neck with necrosis of bone |
| L98.455 | Non-pressure chronic ulcer of neck with muscle involvement without evidence of necrosis |
| L98.456 | Non-pressure chronic ulcer of neck with bone involvement without evidence of necrosis |
| L98.458 | Non-pressure chronic ulcer of neck with other specified severity |
| L98.463 | Non-pressure chronic ulcer of face with necrosis of muscle |
| L98.464 | Non-pressure chronic ulcer of face with necrosis of bone |
| L98.465 | Non-pressure chronic ulcer of face with muscle involvement without evidence of necrosis |
| L98.466 | Non-pressure chronic ulcer of face with bone involvement without evidence of necrosis |
| L98.468 | Non-pressure chronic ulcer of face with other specified severity |
| L98.473 | Non-pressure chronic ulcer of groin with necrosis of muscle |
| L98.474 | Non-pressure chronic ulcer of groin with necrosis of bone |
| L98.475 | Non-pressure chronic ulcer of groin with muscle involvement without evidence of necrosis |
| L98.476 | Non-pressure chronic ulcer of groin with bone involvement without evidence of necrosis |
| L98.478 | Non-pressure chronic ulcer of groin with other specified severity |
| L98.495 | Non-pressure chronic ulcer of skin of other sites with muscle involvement without evidence of necrosis |
| L98.496 | Non-pressure chronic ulcer of skin of other sites with bone involvement without evidence of necrosis |
| L98.498 | Non-pressure chronic ulcer of skin of other sites with other specified severity |
| L98.A113 | Non-pressure chronic ulcer of right upper arm with necrosis of muscle |
| L98.A114 | Non-pressure chronic ulcer of right upper arm with necrosis of bone |
| L98.A115 | Non-pressure chronic ulcer of right upper arm with muscle involvement without evidence of necrosis |
| L98.A116 | Non-pressure chronic ulcer of right upper arm with bone involvement without evidence of necrosis |
| L98.A118 | Non-pressure chronic ulcer of right upper arm with other specified severity |
| L98.A123 | Non-pressure chronic ulcer of left upper arm with necrosis of muscle |
| L98.A124 | Non-pressure chronic ulcer of left upper arm with necrosis of bone |
| L98.A125 | Non-pressure chronic ulcer of left upper arm with muscle involvement without evidence of necrosis |
| L98.A126 | Non-pressure chronic ulcer of left upper arm with bone involvement without evidence of necrosis |
| L98.A128 | Non-pressure chronic ulcer of left upper arm with other specified severity |
| L98.A193 | Non-pressure chronic ulcer of unspecified upper arm with necrosis of muscle |
| L98.A194 | Non-pressure chronic ulcer of unspecified upper arm with necrosis of bone |
| L98.A195 | Non-pressure chronic ulcer of unspecified upper arm with muscle involvement without evidence of necrosis |
| L98.A196 | Non-pressure chronic ulcer of unspecified upper arm with bone involvement without evidence of necrosis |
| L98.A198 | Non-pressure chronic ulcer of unspecified upper arm with other specified severity |
| L98.A213 | Non-pressure chronic ulcer of right forearm with necrosis of muscle |
| L98.A214 | Non-pressure chronic ulcer of right forearm with necrosis of bone |
| L98.A215 | Non-pressure chronic ulcer of right forearm with muscle involvement without evidence of necrosis |
| L98.A216 | Non-pressure chronic ulcer of right forearm with bone involvement without evidence of necrosis |
| L98.A218 | Non-pressure chronic ulcer of right forearm with other specified severity |
| L98.A223 | Non-pressure chronic ulcer of left forearm with necrosis of muscle |
| L98.A224 | Non-pressure chronic ulcer of left forearm with necrosis of bone |
| L98.A225 | Non-pressure chronic ulcer of left forearm with muscle involvement without evidence of necrosis |
| L98.A226 | Non-pressure chronic ulcer of left forearm with bone involvement without evidence of necrosis |
| L98.A228 | Non-pressure chronic ulcer of left forearm with other specified severity |
| L98.A293 | Non-pressure chronic ulcer of unspecified forearm with necrosis of muscle |
| L98.A294 | Non-pressure chronic ulcer of unspecified forearm with necrosis of bone |
| L98.A295 | Non-pressure chronic ulcer of unspecified forearm with muscle involvement without evidence of necrosis |
| L98.A296 | Non-pressure chronic ulcer of unspecified forearm with bone involvement without evidence of necrosis |
| L98.A298 | Non-pressure chronic ulcer of unspecified forearm with other specified severity |
| L98.A313 | Non-pressure chronic ulcer of right hand with necrosis of muscle |
| L98.A314 | Non-pressure chronic ulcer of right hand with necrosis of bone |
| L98.A315 | Non-pressure chronic ulcer of right hand with muscle involvement without evidence of necrosis |
| L98.A316 | Non-pressure chronic ulcer of right hand with bone involvement without evidence of necrosis |
| L98.A318 | Non-pressure chronic ulcer of right hand with other specified severity |
| L98.A323 | Non-pressure chronic ulcer of left hand with necrosis of muscle |
| L98.A324 | Non-pressure chronic ulcer of left hand with necrosis of bone |
| L98.A325 | Non-pressure chronic ulcer of left hand with muscle involvement without evidence of necrosis |
| L98.A326 | Non-pressure chronic ulcer of left hand with bone involvement without evidence of necrosis |
| L98.A328 | Non-pressure chronic ulcer of left hand with other specified severity |
| L98.A393 | Non-pressure chronic ulcer of unspecified hand with necrosis of muscle |
| L98.A394 | Non-pressure chronic ulcer of unspecified hand with necrosis of bone |
| L98.A395 | Non-pressure chronic ulcer of unspecified hand with muscle involvement without evidence of necrosis |
| L98.A396 | Non-pressure chronic ulcer of unspecified hand with bone involvement without evidence of necrosis |
| L98.A398 | Non-pressure chronic ulcer of unspecified hand with other specified severity |
