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    OpenPayerBilling CodesIn situ neoplasmsICD-10-CM d05-carcinoma-in-situ-of-breast
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    ICD-10-CM Code For Carcinoma In Situ Of Breast: Group Overview

    The International Classification of Diseases, Tenth Revision, Clinical Modification (ICD-10-CM) code group D05 includes noninvasive malignant epithelial neoplasms of the breast such as ductal carcinoma in situ and lobular carcinoma in situ, covering precancerous lesions confined to the breast ducts or lobules. These ICD-10-CM diagnosis codes are used to document presence of in situ breast neoplasia, laterality when specified, and clinical context such as surveillance or biopsy findings, capturing disease extent and organ involvement. Accurate coding within the ICD-10-CM D05 group supports proper claim adjudication and complete clinical documentation for services related to diagnosis, monitoring, and management.

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    ICD-10-CM D05: Carcinoma in situ of breast Overview

    The ICD-10-CM D05 code group captures carcinoma in situ of the breast, representing noninvasive malignant epithelial neoplasms confined to breast ducts or lobules. These diagnoses target breast tissue and related ductal or lobular preinvasive pathology. Accurate coding matters for clinical documentation, staging considerations, and appropriate claim processing for services related to diagnosis and treatment.

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    When to Use

    Use a code from this group when a patient is diagnosed with noninvasive carcinoma of the breast such as ductal carcinoma in situ or lobular carcinoma in situ. Include laterality and any specified clinical context like biopsy-proven diagnosis or surveillance when documented.

    ICD-10-CM Codes

    12 rows

    ICD-10-CM CodeDescription
    D05.00Lobular carcinoma in situ of unspecified breast
    D05.01Lobular carcinoma in situ of right breast
    D05.02Lobular carcinoma in situ of left breast
    D05.10Intraductal carcinoma in situ of unspecified breast
    D05.11Intraductal carcinoma in situ of right breast
    D05.12Intraductal carcinoma in situ of left breast
    D05.80Other specified type of carcinoma in situ of unspecified breast
    D05.81Other specified type of carcinoma in situ of right breast
    D05.82Other specified type of carcinoma in situ of left breast
    D05.90Unspecified type of carcinoma in situ of unspecified breast
    D05.91Unspecified type of carcinoma in situ of right breast
    D05.92Unspecified type of carcinoma in situ of left breast

    DRG Codes

    5 rows

    DRG CodeDescription
    582Mastectomy for Malignancy with CC/MCC
    583Mastectomy for Malignancy without CC/MCC
    597Malignant Breast Disorders with MCC
    598Malignant Breast Disorders with CC
    599Malignant Breast Disorders without CC/MCC

    Related Codes

    D00-CARCINOMA-IN-SITU-ORAL-ESOPHAGUS-STOMACH

    ICD-10-CM Code For Carcinoma In Situ Of Oral Cavity, Esophagus And Stomach: Group Overview

    D01-CARCINOMA-IN-SITU-DIGESTIVE

    ICD-10-CM Code For Carcinoma In Situ Of Other And Unspecified Digestive Organs: Group Overview

    D02-CARCINOMA-IN-SITU-MIDDLE-EAR-RESPIRATORY

    ICD-10-CM Code For Carcinoma In Situ Of Middle Ear And Respiratory System: Group Overview

    D03-MELANOMA-IN-SITU

    ICD-10-CM Code For Melanoma In Situ: Group Overview

    D04-CARCINOMA-IN-SITU-OF-SKIN

    ICD-10-CM Code For Carcinoma In Situ Of Skin: Group Overview

    D06-CARCINOMA-IN-SITU-OF-CERVIX-UTERI

    ICD-10-CM Code For Carcinoma In Situ Of Cervix Uteri: Group Overview

    D07-CARCINOMA-IN-SITU-GENITAL-ORGANS

    ICD-10-CM Code For Carcinoma In Situ Of Other And Unspecified Genital Organs: Group Overview

    D09-CARCINOMA-IN-SITU-OTHER-UNSPECIFIED-SITES

    ICD-10-CM Code For Carcinoma In Situ Of Other And Unspecified Sites: 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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