L97

ICD-10Non-billable category

Non-pressure chronic ulcer of lower limb, NEC

Official ICD-10-CM descriptor (FY2026)

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

L97 is a category heading, not a billable code. CMS does not accept it on a claim; report one of the more specific codes beneath it.

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. The condition is not part of this code, but a patient may have both, and both codes may be reported together.

pressure ulcer (pressure area) (L89.-)
skin infections (L00-L08)
specific infections classified to A00-B99

Code first

Sequence the underlying condition before this code.

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-)

More specific codes under L97

Where this code sits

Chapter: 12. Diseases of the skin and subcutaneous tissue (L00-L99)
Block: Other disorders of the skin and subcutaneous tissue (L80-L99)

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Source

ICD-10-CM FY2026. Centers for Medicare & Medicaid Services (CMS) / National Center for Health Statistics (NCHS), “2026 ICD-10-CM Code Descriptions in Tabular Order” (icd10cm_order_2026.txt). Download the original file from cms.gov. Public domain (US Government work). Descriptors, billable flags and instructional notes on this page are reproduced from that file without modification. Krasyn adds no clinical guidance.