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    v1.0.28
    OpenPayerBilling CodesDermatitis and eczemaICD-10-CM l28-lichen-simplex-chronicus-and-prurigo
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    ICD-10-CM Code For Lichen Simplex Chronicus And Prurigo: Group Overview

    The International Classification of Diseases, Tenth Revision, Clinical Modification (ICD-10-CM) code group L28 includes lichen simplex chronicus and prurigo disorders, covering chronic pruritic skin lesions with lichenification and pruritic papules or nodules. These ICD-10-CM diagnosis codes are used to document chronic pruritic dermatologic conditions, capturing lesion distribution, chronicity, and any secondary skin changes. Accurate coding within the ICD-10-CM L28 group supports proper claim adjudication, complete clinical documentation, and appropriate reimbursement.

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    ICD-10-CM L28: Lichen Simplex Chronicus And Prurigo Overview

    The diagnoses in the ICD-10-CM L28 group represent chronic localized skin conditions characterized by persistent itching and lichenification, and prurigo disorders marked by pruritic papules or nodules. These conditions primarily affect the integumentary system and often result from chronic scratching or underlying systemic causes. Accurate coding matters for reimbursement because it links clinical findings to appropriate diagnostic specificity and supports correct claim adjudication.

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    When to Use

    Use a code from this group when a patient presents with clinically diagnosed lichen simplex chronicus or prurigo with documented pruritic lesions and related skin changes. Choose codes that reflect the lesion site and any noted secondary changes to ensure diagnostic specificity when submitting claims.

    ICD-10-CM Codes

    3 rows

    ICD-10-CM CodeDescription
    L28.0Lichen simplex chronicus
    L28.1Prurigo nodularis
    L28.2Other prurigo

    DRG Codes

    2 rows

    DRG CodeDescription
    606Minor Skin Disorders with MCC
    607Minor Skin Disorders without MCC

    Typical Clinical Scenarios

    • A middle-aged patient presents to primary care with months of intensely pruritic, well-demarcated, lichenified plaques on the posterior neck and forearms from chronic scratching and rubbing; symptoms worsen with stress and sleep disruption, and physical exam shows thickened, hyperpigmented skin consistent with chronic localized neurodermatitis, so a diagnosis from this group is assigned for lichenification due to chronic rubbing. Typical codes: L28.0
    • An elderly patient in a dermatology clinic reports multiple discrete, intensely itchy papules and nodules on the lower legs and extensor surfaces that developed over weeks after an insect bite and persist despite topical steroids; the clinic documents nodular prurigo as the primary problem driving treatment and symptom control, prompting assignment of a prurigo code from this group. Typical codes: L28.1
    • A patient with long-standing atopic dermatitis develops secondary prurigo nodularis and frequent excoriations leading to superimposed lichenification and concern for chronic pruritic disease management during a follow-up visit; because the visit focuses on the chronic itch disorder and resulting skin changes as a comorbidity of their dermatitis, a code from this group is used to capture the prurigo/lichen chronicus component. Typical codes: L28.2

    Related Codes

    L20-ATOPIC-DERMATITIS

    ICD-10-CM Code For Atopic Dermatitis: Group Overview

    L21-SEBORRHEIC-DERMATITIS

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

    L22-DIAPER-DERMATITIS

    ICD-10-CM Code For Diaper Dermatitis: Group Overview

    L23-ALLERGIC-CONTACT-DERMATITIS

    ICD-10-CM Code For Allergic Contact Dermatitis: Group Overview

    L24-IRRITANT-CONTACT-DERMATITIS

    ICD-10-CM Code For Irritant Contact Dermatitis: Group Overview

    L25-UNSPECIFIED-CONTACT-DERMATITIS

    ICD-10-CM Code For Unspecified Contact Dermatitis: Group Overview

    L26-EXFOLIATIVE-DERMATITIS

    ICD-10-CM Code For Exfoliative Dermatitis: Group Overview

    L27-DERMATITIS-DUE-TO-SUBSTANCES-TAKEN-INTERNALLY

    ICD-10-CM Code For Dermatitis Due To Substances Taken Internally: Group Overview

    L29-PRURITUS

    ICD-10-CM Code For Pruritus: Group Overview

    L30-OTHER-AND-UNSPECIFIED-DERMATITIS

    ICD-10-CM Code For Other And Unspecified Dermatitis: Group Overview

    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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