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    OpenPayerBilling CodesIn situ neoplasmsICD-10-CM d00-carcinoma-in-situ-oral-esophagus-stomach
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    ICD-10-CM Code For Carcinoma In Situ Of Oral Cavity, Esophagus And Stomach: Group Overview

    The International Classification of Diseases, Tenth Revision, Clinical Modification (ICD-10-CM) code group D00 includes noninvasive malignant epithelial neoplasms (carcinoma in situ) of the oral cavity, esophagus, and stomach, covering lesions confined to the epithelium without stromal invasion. These ICD-10-CM diagnosis codes are used to document early-stage neoplastic changes, specify anatomic site involvement, and capture disease extent distinct from invasive malignancy. Accurate coding within the ICD-10-CM D00 group supports proper claim adjudication, complete clinical documentation, and appropriate reimbursement.

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    ICD-10-CM D00: Carcinoma In Situ Of Oral Cavity, Esophagus And Stomach Overview

    This group represents carcinoma in situ lesions localized to the oral cavity, esophagus, and stomach, which are noninvasive neoplasms limited to the epithelial layer. These diagnoses target the upper gastrointestinal and oral mucosal sites and reflect early-stage malignant transformation without invasion. Accurate coding matters for reimbursement because it differentiates in situ neoplasms from invasive cancers and supports appropriate claim adjudication and clinical tracking.

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    When to Use

    Use a code from this group when clinical, endoscopic, or histopathologic evaluation identifies carcinoma in situ at the oral cavity, esophagus, or stomach site. These codes apply when documentation specifies noninvasive malignant epithelial neoplasm confined to the mucosa and distinguishes it from invasive cancer.

    ICD-10-CM Codes

    11 rows

    ICD-10-CM CodeDescription
    D00.00Carcinoma in situ of oral cavity, unspecified site
    D00.01Carcinoma in situ of labial mucosa and vermilion border
    D00.02Carcinoma in situ of buccal mucosa
    D00.03Carcinoma in situ of gingiva and edentulous alveolar ridge
    D00.04Carcinoma in situ of soft palate
    D00.05Carcinoma in situ of hard palate
    D00.06Carcinoma in situ of floor of mouth
    D00.07Carcinoma in situ of tongue
    D00.08Carcinoma in situ of pharynx
    D00.1Carcinoma in situ of esophagus
    D00.2Carcinoma in situ of stomach

    DRG Codes

    9 rows

    DRG CodeDescription
    011Tracheostomy for Face, Mouth and Neck Diagnoses or Laryngectomy with MCC
    012Tracheostomy for Face, Mouth and Neck Diagnoses or Laryngectomy with CC
    013Tracheostomy for Face, Mouth and Neck Diagnoses or Laryngectomy without CC/MCC
    146Ear, Nose, Mouth and Throat Malignancy with MCC
    147Ear, Nose, Mouth and Throat Malignancy with CC
    148Ear, Nose, Mouth and Throat Malignancy without CC/MCC
    374Digestive Malignancy with MCC
    375Digestive Malignancy with CC
    376Digestive Malignancy without CC/MCC

    Related Codes

    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

    D05-CARCINOMA-IN-SITU-OF-BREAST

    ICD-10-CM Code For Carcinoma In Situ Of Breast: 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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