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    OpenPayerBilling CodesOther congenital malformationsICD-10-CM q84-other-congenital-malformations-of-integument
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    ICD-10-CM Code For Other Congenital Malformations Of Integument: Group Overview

    The International Classification of Diseases, Tenth Revision, Clinical Modification (ICD-10-CM) code group Q84 includes congenital malformations of the skin and integumentary structures, covering anomalies of skin appendages, subcutaneous tissue, and related integumentary defects. These ICD-10-CM diagnosis codes are used to document congenital integumentary conditions, capturing presence at birth, anatomical location, and any associated severity or complications. Accurate coding within the ICD-10-CM Q84 group supports proper claim adjudication, complete clinical documentation, and appropriate reimbursement.

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    ICD-10-CM Q84: Other Congenital Malformations Of Integument Overview

    This group includes congenital malformations of the skin and integumentary structures such as appendages and subcutaneous tissue present at birth. It targets developmental anomalies of skin, hair, nails, and related structures, and provides specificity for clinical documentation. Accurate coding matters for proper claim processing and reflects the clinical complexity needed for reimbursement.

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    When to Use

    Use a code from this group when documenting a congenital integumentary malformation identified at birth or during neonatal care, including localized or generalized skin appendage defects. Select the most specific code available to capture anatomical site, laterality if applicable, and any associated complications to support clinical documentation and billing.

    ICD-10-CM Codes

    9 rows

    ICD-10-CM CodeDescription
    Q84.0Congenital alopecia
    Q84.1Congenital morphological disturbances of hair, not elsewhere classified
    Q84.2Other congenital malformations of hair
    Q84.3Anonychia
    Q84.4Congenital leukonychia
    Q84.5Enlarged and hypertrophic nails
    Q84.6Other congenital malformations of nails
    Q84.8Other specified congenital malformations of integument
    Q84.9Congenital malformation of integument, unspecified

    DRG Codes

    2 rows

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

    Typical Clinical Scenarios

    • An infant is brought to pediatric dermatology for evaluation of multiple hypopigmented and hairless patches present since birth, one of which overlies a segmental distribution along a limb with underlying subcutaneous nodularity. The family reports no history of trauma and the lesions have not changed; examination and imaging are performed to assess extent of skin and appendage involvement. A congenital integumental malformation code is assigned to capture the focal congenital skin/appendage anomaly and guide specialty follow-up. Typical codes: Q84.0, Q84.6
    • A school-age child with a localized area of skin overgrowth characterized by a thickened, papillomatous plaque present since birth now causing recurrent irritation and secondary infections from friction with clothing. The child is referred for dermatologic management and possible surgical consultation because the lesion results in functional impairment and recurrent cellulitis. A code from the congenital integumental malformation group is used to document the underlying congenital lesion as the reason for recurrent complications and treatment. Typical codes: Q84.1, Q84.3
    • An adult presents to a wound clinic with a chronic nonhealing ulcer that overlies a congenital skin defect and scar from a birth-related malformation; the chronic wound requires debridement and specialized dressings. History confirms the area was abnormal since infancy and has developed chronic breakdown and delayed healing due to the underlying congenital integumental anomaly. Coders assign a congenital integumental malformation code to identify the congenital etiology as a comorbidity influencing wound management and outcomes. Typical codes: Q84.4, Q84.8

    Related Codes

    Q80-CONGENITAL-ICHTHYOSIS

    ICD-10-CM Code For Congenital Ichthyosis: Group Overview

    Q81-EPIDERMOLYSIS-BULLOSA

    ICD-10-CM Code For Epidermolysis Bullosa: Group Overview

    Q82-OTHER-CONGENITAL-MALFORMATIONS-OF-SKIN

    ICD-10-CM Code For Other Congenital Malformations Of Skin: Group Overview

    Q85-PHAKOMATOSES-NOT-ELSEWHERE-CLASSIFIED

    ICD-10-CM Code For Phakomatoses Not Elsewhere Classified: Group Overview

    Q86-CONGENITAL-MALFORMATION-SYNDROMES

    ICD-10-CM Code For Congenital Malformation Syndromes Due To Known Exogenous Causes: Group Overview

    Q87-OTHER-SPECIFIED-CONGENITAL-MALFORMATION-SYNDROMES

    ICD-10-CM Code For Other Specified Congenital Malformation Syndromes Affecting Multiple Systems: Group Overview

    Q89-OTHER-CONGENITAL-MALFORMATIONS

    ICD-10-CM Code For Other Congenital Malformations Not Elsewhere Classified: 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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