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    v1.0.28
    OpenPayerBilling CodesOther disorders of the skin and subcutaneous tissueICD-10-CM l98-other-disorders-of-skin
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    ICD-10-CM Code For Other Disorders Of Skin And Subcutaneous Tissue: Group Overview

    The International Classification of Diseases, Tenth Revision, Clinical Modification (ICD-10-CM) code group L98 includes a range of miscellaneous skin and subcutaneous tissue disorders that are not classified under more specific skin disease categories, such as noninfective ulcers, skin graft complications, and other localized skin conditions. These ICD-10-CM diagnosis codes are used to document clinical presentations that capture disease location, severity, and complications involving the skin and subcutaneous tissue. Accurate coding within the ICD-10-CM L98 group supports proper claim adjudication and appropriate reimbursement.

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    ICD-10-CM L98: Other Disorders Of Skin And Subcutaneous Tissue, Not Elsewhere Classified Overview

    This group contains miscellaneous skin and subcutaneous tissue disorders that are not assigned to more specific categories elsewhere in the classification. It targets a variety of dermatologic conditions affecting the skin and underlying tissues. Accurate coding within this group matters for correct reimbursement and to ensure clinical records reflect the complexity of skin disease presentations.

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    When to Use

    Use codes from this group when the documented skin or subcutaneous tissue condition does not fit into a more specific ICD-10-CM category. Select the most specific code available for the anatomic site, severity, and any documented complications.

    ICD-10-CM Codes

    145 rows

    ICD-10-CM CodeDescription
    L98.0Pyogenic granuloma
    L98.1Factitial dermatitis
    L98.2Febrile neutrophilic dermatosis [Sweet]
    L98.3Eosinophilic cellulitis [Wells]
    L98.411Non-pressure chronic ulcer of buttock limited to breakdown of skin
    L98.412Non-pressure chronic ulcer of buttock with fat layer exposed
    L98.413Non-pressure chronic ulcer of buttock with necrosis of muscle
    L98.414Non-pressure chronic ulcer of buttock with necrosis of bone
    L98.415Non-pressure chronic ulcer of buttock with muscle involvement without evidence of necrosis
    L98.416Non-pressure chronic ulcer of buttock with bone involvement without evidence of necrosis
    L98.418Non-pressure chronic ulcer of buttock with other specified severity
    L98.419Non-pressure chronic ulcer of buttock with unspecified severity
    L98.421Non-pressure chronic ulcer of back limited to breakdown of skin
    L98.422Non-pressure chronic ulcer of back with fat layer exposed
    L98.423Non-pressure chronic ulcer of back with necrosis of muscle
    L98.424Non-pressure chronic ulcer of back with necrosis of bone
    L98.425Non-pressure chronic ulcer of back with muscle involvement without evidence of necrosis
    L98.426Non-pressure chronic ulcer of back with bone involvement without evidence of necrosis
    L98.428Non-pressure chronic ulcer of back with other specified severity
    L98.429Non-pressure chronic ulcer of back with unspecified severity

    Showing 1–20 of 145

    • More pages

    DRG Codes

    12 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
    602Cellulitis with MCC
    603Cellulitis without MCC
    606Minor Skin Disorders with MCC
    607Minor Skin Disorders without MCC
    791Prematurity with Major Problems
    793Full Term Neonate with Major Problems

    Typical Clinical Scenarios

    • An elderly patient with long-standing venous insufficiency presents to a dermatology clinic with non-healing, painful ulcerations and surrounding atrophic, scarred skin after multiple prior dressings and local infections. The wound bed shows thin fragile epidermis and fibrosis rather than active cellulitis, and biopsy rules out vasculitis and malignancy; a non-specific disorder of the skin/subcutaneous tissue related to chronic ulceration is assigned to capture the chronic skin changes. Typical codes: L98.4, L98.5
    • A middle-aged immunocompromised patient (on chronic corticosteroids) presents to the emergency department with rapidly progressive, painful subcutaneous nodules and areas of purulent drainage following minor trauma; cultures are negative for typical organisms and there is extensive tissue breakdown requiring debridement. Because the presentation represents an acute destructive dermatitis/subcutaneous process not attributable to a specific infectious or autoimmune diagnosis, an acute nonspecific code from this group is used to document the skin/subcutaneous disorder. Typical codes: L98.0, L98.2
    • A younger adult with a history of extensive radiation therapy for malignancy returns to outpatient oncology with chronic telangiectasia, atrophic skin, and persistent ulceration within the prior radiation field that is slow to heal and complicates prosthetic placement. The chronic radiation-induced skin and subcutaneous tissue changes are best captured by one of the codes in this category that denotes other specified chronic skin/subcutaneous disorders post-therapy. Typical codes: L98.3, L98.6

    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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