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

⚠ Non-Billable ICD-10-CM 2026
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The ICD-10-CM code for Non-pressure chronic ulcer of lower limb, not elsewhere classified is L97 (FY2026). It is a non-billable category code — select a more specific code below for claims.

Classification

Section
L80-L99: Other disorders of the skin and subcutaneous tissue (L80-L99)
Category L97
197 codes (168 billable)
FY2026 Status
Stable since FY2024
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
Not included here. These conditions are coded elsewhere but may be coded together if applicable.
  • 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-)

Official Coding Guidelines

Pressure ulcer stages—L89 identifies site/stage; code all ulcers

a. Pressure ulcer stage codes 1) Pressure ulcer stages Codes in category L89, Pressure ulcer, identify the site and stage of the pressure ulcer. The ICD-10-CM classifies pressure ulcer stages based on severity, which is designated by stages 1-4, deep tissue pressure injury, unspecified stage, and unstageable. Assign as many codes from category L89 as needed to identify all the pressure ulcers the patient has, if applicable. See Section I.B.14. for pressure ulcer stage documentation by clinicians other than patient's provider.

— ICD-10-CM Official Guidelines for Coding and Reporting, FY2026, Section I.C.12.a.1
Unstageable pressure ulcers—L89.--0 based on clinical documentation

2) Unstageable pressure ulcers Assignment of the code for unstageable pressure ulcer (L89.--0) should be based on the clinical documentation. These codes are used for

— ICD-10-CM Official Guidelines for Coding and Reporting, FY2026, Section I.C.12.a.2

Source: CMS — ICD-10-CM Official Guidelines for Coding and Reporting, FY2026

References

Cite This Page

Reference L97 with the canonical source and edition:

L97 — Non-pressure chronic ulcer of lower limb, not elsewhere classified. ICD-10 Coding Pro (ICD-10-CM FY2026). https://icd10codingpro.com/codes/L97

Canonical URL: https://icd10codingpro.com/codes/L97

Related Codes

More Specific Codes

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

All Codes in L97

Every most-specific code under L97 Non-pressure chronic ulcer of lower limb, not elsewhere classified (168 codes):

Show the complete L97 code list
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 L97.501 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 L97.511 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 L97.521 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 L97.801 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
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Reviewed by Prajwal Shrestha, CPC, CRC
Certified Professional Coder (CPC) and Certified Risk Adjustment Coder (CRC) · AAPC Member ID 01997614 · About · Editorial policy · Content last reviewed: 2025-10-01

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