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    v1.0.28
    OpenPayerBilling CodesOther disorders of the skin and subcutaneous tissueICD-10-CM l84-corns-and-callosities
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    ICD-10-CM Code For Corns And Callosities: Group Overview

    The International Classification of Diseases, Tenth Revision, Clinical Modification (ICD-10-CM) code group L84 includes localized hyperkeratotic skin lesions such as corns and callosities caused by friction or pressure, primarily affecting the feet and weight-bearing areas. These ICD-10-CM diagnosis codes are used to document the presence, location, and clinical management of hyperkeratotic lesions, capturing severity and any related skin complications. Accurate coding within the ICD-10-CM L84 group supports proper claim adjudication, complete clinical documentation, and appropriate reimbursement.

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    ICD-10-CM L84: Corns And Callosities Overview

    This group includes diagnoses for localized hyperkeratotic lesions of the skin known as corns and callosities, typically affecting the feet and other pressure points. These conditions involve thickened epidermis due to repetitive friction or pressure and are part of disorders of the skin and subcutaneous tissue. Accurate coding ensures clinical records reflect the condition and supports appropriate reimbursement and claim processing.

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    When to Use

    Use a code from this group when a patient presents with clinically diagnosed corns or callosities documented in the medical record. Select the code that corresponds to the specific lesion and site to accurately reflect the encounter and support claims processing.

    ICD-10-CM Codes

    1 rows

    ICD-10-CM CodeDescription
    L84Corns and callosities

    DRG Codes

    2 rows

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

    Typical Clinical Scenarios

    • An elderly patient with chronic plantar pressure points presents to a podiatry clinic complaining of a painful, thickened area on the sole of the foot that has progressively worsened over months and interferes with walking. Examination reveals a well-demarcated, hyperkeratotic lesion consistent with a corn/callus formed over a bony prominence from long-standing gait abnormality; no infection or ulceration is present, and conservative debridement and offloading are discussed. A diagnosis from this group is assigned for the chronic hyperkeratotic lesion. Typical codes: L84
    • A middle-aged manual laborer presents to urgent care with acute localized pain after developing a hard, tender bump on the dorsal toe caused by repetitive friction from ill-fitting work boots; the area shows a thickened, conical hyperkeratotic lesion without cellulitis. The patient seeks immediate symptomatic treatment and removal of the offending pressure, and the clinician documents a corn/callosity as the primary problem prompting the visit. Typical codes: L84
    • A diabetic patient with peripheral neuropathy is seen in a wound clinic for routine foot screening; a nonpainful, circumferential callus is identified beneath a metatarsal head, raising concern for increased plantar pressure and risk for skin breakdown and ulceration. The clinician documents the callosity as a comorbid skin lesion requiring monitoring and preventive care during the diabetes follow-up. Typical codes: L84

    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

    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

    L90-ATROPHIC-DISORDERS-OF-SKIN

    ICD-10-CM Code For Atrophic Disorders Of Skin: 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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