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    v1.0.28
    OpenPayerBilling CodesInfections of the skin and subcutaneous tissueICD-10-CM l01-impetigo
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    ICD-10-CM Code For Impetigo: Group Overview

    The International Classification of Diseases, Tenth Revision, Clinical Modification (ICD-10-CM) code group L01 includes diagnoses for superficial bacterial skin infections characterized by localized pustules, crusted erosions, and potential bullous forms, commonly due to Staphylococcus aureus or Streptococcus pyogenes. These ICD-10-CM diagnosis codes are used to document clinical encounters for primary cutaneous bacterial infections, capturing lesion type, distribution, and complications such as secondary cellulitis. Accurate coding within the ICD-10-CM L01 group supports proper claim adjudication, complete clinical documentation, and appropriate reimbursement.

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    ICD-10-CM L01: Impetigo Overview

    The ICD-10-CM L01 group covers impetigo, a contagious superficial bacterial skin infection typically affecting the epidermis. These diagnoses target cutaneous infections often caused by Staphylococcus aureus or Streptococcus pyogenes and commonly involve the face and extremities. Accurate coding matters for reimbursement because it documents the clinical condition, supports appropriate claim adjudication, and reflects treatment intensity.

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    When to Use

    Use a code from this group when a patient presents with clinical evidence of impetigo confirmed by examination or culture and requires documentation for treatment or billing. Select specific codes reflecting lesion type and any associated complications to accurately represent the encounter.

    ICD-10-CM Codes

    6 rows

    ICD-10-CM CodeDescription
    L01.00Impetigo, unspecified
    L01.01Non-bullous impetigo
    L01.02Bockhart's impetigo
    L01.03Bullous impetigo
    L01.09Other impetigo
    L01.1Impetiginization of other dermatoses

    DRG Codes

    2 rows

    DRG CodeDescription
    602Cellulitis with MCC
    603Cellulitis without MCC

    Typical Clinical Scenarios

    • A toddler presents to urgent care with multiple honey-colored crusted lesions around the nares and perioral region after a recent upper respiratory viral illness; lesions are superficial, non-bullous, and there is minimal systemic illness. Examination and history lead to a primary diagnosis from this group for localized impetigo of the face. Typical codes: L01.00, L01.01
    • An adult with a history of diabetes and peripheral vascular disease develops expanding, painful, bullous skin blisters on the lower leg that began rapidly and are accompanied by mild fever; wounds are cultured and require close outpatient wound care and possible hospitalization for systemic therapy. Because the presentation is bullous impetigo affecting the lower extremity, a code from this group is assigned to capture the specific clinical form. Typical codes: L01.02, L01.1
    • A school-aged child returns for follow-up after an untreated superficial facial impetigo that progressed with secondary bacterial infection and cellulitis involving adjacent skin, prompting evaluation for deeper soft-tissue involvement and coordination of higher-level care. The clinician documents impetigo with surrounding cellulitic change, necessitating a code from this group that reflects the complicated/extension scenario. Typical codes: L01.03, L01.09

    Related Codes

    L00-STAPHYLOCOCCAL-SCALDED-SKIN-SYNDROME

    ICD-10-CM Code For Staphylococcal Scalded Skin Syndrome: Group Overview

    L02-CUTANEOUS-ABSCESS-FURUNCLE-CARBUNCLE

    ICD-10-CM Code For Cutaneous Abscess, Furuncle And Carbuncle: Group Overview

    L03-CELLULITIS-AND-ACUTE-LYMPHANGITIS

    ICD-10-CM Code For Cellulitis And Acute Lymphangitis: Group Overview

    L04-ACUTE-LYMPHADENITIS

    ICD-10-CM Code For Acute Lymphadenitis: Group Overview

    L05-PILONIDAL-CYST-AND-SINUS

    ICD-10-CM Code For Pilonidal Cyst And Sinus: Group Overview

    L08-OTHER-LOCAL-INFECTIONS-OF-SKIN

    ICD-10-CM Code For Other Local Infections Of Skin And Subcutaneous Tissue: 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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