ICD-10-CM L97: Non-pressure chronic ulcer of lower limb, not elsewhere classified

ICD-10-CM Diagnosis Code (2025)

Official Description for L97

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

Coding Notes & Guidelines for L97

Includes Notes
  • 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: Not Included Here
  • pressure ulcer (pressure area) (L89.-)
  • skin infections (L00-L08)
  • specific infections classified to A00-B99
Code First
  • any associated underlying condition, such as:
  • any associated gangrene (I96)
  • atherosclerosis of the lower extremities (I70.23-, I70.24-, I70.33-, I70.34-, I70.43-, I70.44-, I70.53-, I70.54-, I70.63-, I70.64-, I70.73-, I70.74-)
  • chronic venous hypertension (I87.31-, I87.33-)
  • diabetic ulcers (E08.621, E08.622, E09.621, E09.622, E10.621, E10.622, E11.621, E11.622, E13.621, E13.622)
  • postphlebitic syndrome (I87.01-, I87.03-)
  • postthrombotic syndrome (I87.01-, I87.03-)
  • varicose ulcer (I83.0-, I83.2-)
Inclusion Terms

Non-pressure chronic ulcer of plantar surface of midfoot

Inclusion Terms

Non-pressure chronic ulcer of toe

Child Codes (More Specific Codes for L97):

L97.1 - Non-pressure chronic ulcer of thigh 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 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 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 L97.2 - Non-pressure chronic ulcer of calf 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 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 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 L97.3 - Non-pressure chronic ulcer of ankle 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 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 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 L97.4 - Non-pressure chronic ulcer of heel and midfoot 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 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 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 L97.5 - Non-pressure chronic ulcer of other part of foot 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 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 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 L97.8 - Non-pressure chronic ulcer of other part of lower leg 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 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 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 L97.9 - Non-pressure chronic ulcer of unspecified part of lower leg 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 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 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

About ICD-10-CM Code L97 (Non-pressure chronic ulcer of lower limb)

ICD-10-CM code L97 is a billable or specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. The 2025 edition of ICD-10-CM L97 became effective on October 1, 2024.

This page provides detailed information about L97 - Non-pressure chronic ulcer of lower limb, not elsewhere classified. It includes common terminology, coding guidelines such as "Includes," "Excludes1," and "Excludes2" notes, and information on required 7th characters. Utilizing this information correctly is essential for accurate medical coding and claims submission for conditions like Non-pressure chronic ulcer of lower limb related to not elsewhere classified.