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    OpenPayerBilling CodesOther disorders of the skin and subcutaneous tissueICD-10-CM l97-non-pressure-chronic-ulcer-lower-limb
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    ICD-10-CM Code For Non Pressure Chronic Ulcer Of Lower Limb Not Elsewhere Classified: Group Overview

    The International Classification of Diseases, Tenth Revision, Clinical Modification (ICD-10-CM) code group L97 includes non-pressure chronic ulcers of the lower limb not classified elsewhere, covering chronic ulcers of the leg and foot due to vascular disease, neuropathy, or other non-pressure causes. These ICD-10-CM diagnosis codes are used to document clinical scenarios that capture ulcer location, laterality, depth, and presence of infection or necrosis, reflecting disease severity and complexity. Accurate coding within the ICD-10-CM L97 group supports proper claim adjudication, complete clinical documentation, and appropriate reimbursement.

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

    The non-pressure chronic ulcer of lower limb, not elsewhere classified group includes chronic ulcers of the leg and foot that are not due to pressure, such as venous, arterial, diabetic, or mixed etiology when specified under this category. These diagnoses target skin and subcutaneous tissue pathology of the lower extremity and frequently relate to vascular compromise, neuropathy, or local infection. Accurate coding matters for reimbursement because it communicates ulcer location, laterality, and severity which affect claim adjudication and care planning.

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    When to Use

    Use a code from this group when documenting a chronic ulcer of the leg or foot that is non-pressure in origin and does not belong to another specific ulcer category. Select the most specific code available to reflect ulcer location, severity, and any associated infection or tissue necrosis.

    ICD-10-CM Codes

    168 rows

    ICD-10-CM CodeDescription
    L97.101Non-pressure chronic ulcer of unspecified thigh limited to breakdown of skin
    L97.102Non-pressure chronic ulcer of unspecified thigh with fat layer exposed
    L97.103Non-pressure chronic ulcer of unspecified thigh with necrosis of muscle
    L97.104Non-pressure chronic ulcer of unspecified thigh with necrosis of bone
    L97.105Non-pressure chronic ulcer of unspecified thigh with muscle involvement without evidence of necrosis
    L97.106Non-pressure chronic ulcer of unspecified thigh with bone involvement without evidence of necrosis
    L97.108Non-pressure chronic ulcer of unspecified thigh with other specified severity
    L97.109Non-pressure chronic ulcer of unspecified thigh with unspecified severity
    L97.111Non-pressure chronic ulcer of right thigh limited to breakdown of skin
    L97.112Non-pressure chronic ulcer of right thigh with fat layer exposed
    L97.113Non-pressure chronic ulcer of right thigh with necrosis of muscle
    L97.114Non-pressure chronic ulcer of right thigh with necrosis of bone
    L97.115Non-pressure chronic ulcer of right thigh with muscle involvement without evidence of necrosis
    L97.116Non-pressure chronic ulcer of right thigh with bone involvement without evidence of necrosis
    L97.118Non-pressure chronic ulcer of right thigh with other specified severity
    L97.119Non-pressure chronic ulcer of right thigh with unspecified severity
    L97.121Non-pressure chronic ulcer of left thigh limited to breakdown of skin
    L97.122Non-pressure chronic ulcer of left thigh with fat layer exposed
    L97.123Non-pressure chronic ulcer of left thigh with necrosis of muscle
    L97.124Non-pressure chronic ulcer of left thigh with necrosis of bone

    Showing 1–20 of 168

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    DRG Codes

    6 rows

    DRG CodeDescription
    573Skin Graft for Skin Ulcer or Cellulitis with MCC
    574Skin Graft for Skin Ulcer or Cellulitis with CC
    575Skin Graft for Skin Ulcer or Cellulitis without CC/MCC
    592Skin Ulcers with MCC
    593Skin Ulcers with CC
    594Skin Ulcers without CC/MCC

    Typical Clinical Scenarios

    • An elderly patient with long-standing peripheral arterial disease presents to the vascular clinic with a painful, non-healing ulcer on the dorsum of the foot that has been present for several months and shows a shallow granulating base without exposed muscle or tendon. The visit is for ongoing wound care and vascular evaluation because conservative measures and local wound therapy have failed to heal the lesion; a non-pressure chronic lower-limb ulcer code is assigned to document the chronic arterial-associated ulcer of the foot. Typical codes: L97.411, L97.419.
    • A middle-aged patient with poorly controlled type 2 diabetes is seen in primary care for a neuropathic ulcer at the plantar surface of the forefoot that has deep tissue involvement and surrounding cellulitis requiring antibiotic therapy. The acute exacerbation and infection of a chronic diabetic-related lower extremity ulcer prompt assignment of a non-pressure chronic lower-limb ulcer code specifying laterality and depth to capture the chronic ulcer as a comorbidity impacting management. Typical codes: L97.421, L97.429.
    • A homebound patient with chronic venous insufficiency is admitted to a skilled nursing facility for routine dressing changes for a longstanding, partial-thickness ulcer over the medial lower leg that is stable but requires skilled nursing and compression therapy. The presentation documents an ongoing non-pressure ulcer of the lower limb related to venous disease and the need for continued outpatient/community wound care, so a non-pressure chronic lower-limb ulcer code is used to reflect the chronicity and anatomical site. Typical codes: L97.301, L97.309.

    Related Codes

    L80-VITILIGO

    ICD-10-CM Code For Vitiligo: Group Overview

    L81-OTHER-DISORDERS-OF-PIGMENTATION

    ICD-10-CM Code For Other Disorders Of Pigmentation: Group Overview

    L82-SEBORRHEIC-KERATOSIS

    ICD-10-CM Code For Seborrheic Keratosis: Group Overview

    L83-ACANTHOSIS-NIGRICANS

    ICD-10-CM Code For Acanthosis Nigricans: Group Overview

    L84-CORNS-AND-CALLOSITIES

    ICD-10-CM Code For Corns And Callosities: Group Overview

    L85-OTHER-EPIDERMAL-THICKENING

    ICD-10-CM Code For Other Epidermal Thickening: Group Overview

    L86-KERATODERMA-IN-DISEASES-CLASSIFIED-ELSEWHERE

    ICD-10-CM Code For Keratoderma In Diseases Classified Elsewhere: Group Overview

    L87-TRANSEPIDERMAL-ELIMINATION-DISORDERS

    ICD-10-CM Code For Transepidermal Elimination Disorders: Group Overview

    L88-PYODERMA-GANGRENOSUM

    ICD-10-CM Code For Pyoderma Gangrenosum: Group Overview

    L89-PRESSURE-ULCER

    ICD-10-CM Code For Pressure Ulcer: Group Overview

    Showing 1–10 of 18

    Frequently Asked Questions

    References

    1. 1.CPT® Codes and Descriptions. AAPC. Retrieved Aug 11, 2026.Maintains the CPT code set's official descriptions and guidelines, licensed from the American Medical Association, used as the definitional source for CPT codes on this page.
    2. 2.HCPCS Quarterly Update. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's quarterly release of HCPCS Level II codes and short/long descriptors, the source for HCPCS code definitions and update history.
    3. 3.ICD-10-CM Full Code List. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's complete ICD-10-CM diagnosis code list, used to cross-reference diagnosis codes associated with this procedure or service.
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