2026 ICD-10-CM Diagnosis Code D00Carcinoma in situ of oral cavity, esophagus and stomach

ICD-10-CM Codes›C00–D49›D00-D09›D00

ICD-10-CM D00
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

D00 is a non-billable ICD-10-CM category code for carcinoma in situ of oral cavity, esophagus and stomach, so it cannot be submitted on claims. Use a more specific code from this category instead, such as D00.00, D00.01, D00.02, and D00.03.

Code Identity

ICD-10-CM Code
D00
Billable Status
No — Non-Billable Category
Code Describes
Carcinoma in situ of oral cavity, esophagus and stomach
Short Description
Carcinoma in situ of oral cavity, esophagus and stomach
Same as the full description in the CMS dataset.
Chapter
D00-D09
In situ neoplasms

Code Classification

ChapterC00–D49Neoplasms
SectionD00-D09In situ neoplasms
CategoryD00Carcinoma in situ of oral cavity, esophagus and stomach
This CodeD00Carcinoma in situ of oral cavity, esophagus and stomach

Specific Coding for Carcinoma in situ of oral cavity, esophagus and stomachOverview

Non-specific codes like D00 require more characters. Use one of these billable codes instead:

  • D00.0 for Carcinoma in situ of lip, oral cavity and pharynx

  • Use D00.00 for Carcinoma in situ of oral cavity, unspecified site

  • Use D00.01 for Carcinoma in situ of labial mucosa and vermilion border

  • Use D00.02 for Carcinoma in situ of buccal mucosa

  • Use D00.03 for Carcinoma in situ of gingiva and edentulous alveolar ridge

  • Use D00.04 for Carcinoma in situ of soft palate

  • Use D00.05 for Carcinoma in situ of hard palate

  • Use D00.06 for Carcinoma in situ of floor of mouth

  • Use D00.07 for Carcinoma in situ of tongue

  • Use D00.08 for Carcinoma in situ of pharynx

  • Use D00.1 for Carcinoma in situ of esophagus

  • Use D00.2 for Carcinoma in situ of stomach

Tabular List NotesGuidance

Coding notes and annotation back-references applicable to this code.

Type 1 Excludes

  • melanoma in situ D03

Patient EducationClinical

Esophageal Cancer

The esophagus is a hollow tube that carries food and liquids from your throat to your stomach. Early esophageal cancer usually does not cause symptoms. Later, you may have symptoms such as:

Read the full article at MedlinePlus

Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2025No changes
FY 2026CurrentCurrent code set, no changesEffective October 1, 2025 through September 30, 2026.

Questions About D00Overview

Is D00 (Carcinoma in situ of oral cavity, esophagus and stomach) a billable code?

No. This is a category header that groups the codes for carcinoma in situ of oral cavity, esophagus and stomach, and headers cannot be submitted on claims. Claims for carcinoma in situ of oral cavity, esophagus and stomach need a more specific code from this category, such as D00.00, D00.01, and D00.02.