1. L97 Non-pressure chronic ulcer of lower limb, not elsewhere classified

    Includes:

    • chronic ulcer of skin of lower limb NOS
    • non-healing ulcer of skin
    • non-infected sinus of skin
    • trophic ulcer NOS
    • tropical ulcer NOS
    • ulcer of skin of lower limb NOS

    Excludes2

    • pressure ulcer (pressure area) (L89.-)
    • skin infections (L00-L08)
    • specific infections classified to A00-B99
    1. L97.1 Non-pressure chronic ulcer of thigh

      1. L97.10 Non-pressure chronic ulcer of unspecified thigh

        • 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
      2. L97.11 Non-pressure chronic ulcer of right thigh

        • 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
      3. L97.12 Non-pressure chronic ulcer of left thigh

        • 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
    2. L97.2 Non-pressure chronic ulcer of calf

      1. L97.20 Non-pressure chronic ulcer of unspecified calf

        • 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
      2. L97.21 Non-pressure chronic ulcer of right calf

        • 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
      3. L97.22 Non-pressure chronic ulcer of left calf

        • 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
    3. L97.3 Non-pressure chronic ulcer of ankle

      1. L97.30 Non-pressure chronic ulcer of unspecified ankle

        • 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
      2. L97.31 Non-pressure chronic ulcer of right ankle

        • 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
      3. L97.32 Non-pressure chronic ulcer of left ankle

        • 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
    4. L97.4 Non-pressure chronic ulcer of heel and midfoot

      Inclusion term(s):

      • Non-pressure chronic ulcer of plantar surface of midfoot
      1. L97.40 Non-pressure chronic ulcer of unspecified heel and midfoot

        • 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
      2. L97.41 Non-pressure chronic ulcer of right heel and midfoot

        • 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
      3. L97.42 Non-pressure chronic ulcer of left heel and midfoot

        • 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
    5. L97.5 Non-pressure chronic ulcer of other part of foot

      Inclusion term(s):

      • Non-pressure chronic ulcer of toe
      1. L97.50 Non-pressure chronic ulcer of other part of unspecified foot

        • L97.501 Non-pressure chronic ulcer of other part of unspecified foot limited to breakdown of skin
        • L97.502 Non-pressure chronic ulcer of other part of unspecified foot with fat layer exposed
        • L97.503 Non-pressure chronic ulcer of other part of unspecified foot with necrosis of muscle
        • L97.504 Non-pressure chronic ulcer of other part of unspecified foot with necrosis of bone
        • 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
        • L97.509 Non-pressure chronic ulcer of other part of unspecified foot with unspecified severity
      2. L97.51 Non-pressure chronic ulcer of other part of right foot

        • L97.511 Non-pressure chronic ulcer of other part of right foot limited to breakdown of skin
        • L97.512 Non-pressure chronic ulcer of other part of right foot with fat layer exposed
        • L97.513 Non-pressure chronic ulcer of other part of right foot with necrosis of muscle
        • L97.514 Non-pressure chronic ulcer of other part of right foot with necrosis of bone
        • 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
        • L97.519 Non-pressure chronic ulcer of other part of right foot with unspecified severity
      3. L97.52 Non-pressure chronic ulcer of other part of left foot

        • L97.521 Non-pressure chronic ulcer of other part of left foot limited to breakdown of skin
        • L97.522 Non-pressure chronic ulcer of other part of left foot with fat layer exposed
        • L97.523 Non-pressure chronic ulcer of other part of left foot with necrosis of muscle
        • L97.524 Non-pressure chronic ulcer of other part of left foot with necrosis of bone
        • 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
        • L97.529 Non-pressure chronic ulcer of other part of left foot with unspecified severity
    6. L97.8 Non-pressure chronic ulcer of other part of lower leg

      1. L97.80 Non-pressure chronic ulcer of other part of unspecified lower leg

        • 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
      2. L97.81 Non-pressure chronic ulcer of other part of right lower leg

        • 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
      3. L97.82 Non-pressure chronic ulcer of other part of left lower leg

        • 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
    7. L97.9 Non-pressure chronic ulcer of unspecified part of lower leg

      1. L97.90 Non-pressure chronic ulcer of unspecified part of unspecified lower leg

        • 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
      2. L97.91 Non-pressure chronic ulcer of unspecified part of right lower leg

        • 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
      3. L97.92 Non-pressure chronic ulcer of unspecified part of left lower leg

        • 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
Abbreviations used here:

NEC Not elsewhere classifiable
This abbreviation in the Tabular List represents “other specified”. When a specific code is not available for a condition, the Tabular List includes an NEC entry under a code to identify the code as the “other specified” code.

NOS Not otherwise specified
This abbreviation is the equivalent of unspecified.