Carcinoma in situ of oral cavity, esophagus and stomach
In In situ neoplasms (D00-D09), chapter 2: Neoplasms
11 billable codes under D00: none are a CC or MCC; none map to an HCC.
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Instructional notes
Excludes1: not coded here, use a different code
- melanoma in situ (D03.-)
Also applies, from In situ neoplasms (D00-D09)
These notes sit on D00-D09 and apply to every code under it, including D00.
Includes: conditions that are coded here
- Bowen's disease
- erythroplasia
- grade III intraepithelial neoplasia
- Queyrat's erythroplasia
Official coding guidelines
From the ICD-10-CM Official Guidelines for Coding and Reporting, FY 2027 (CMS and NCHS). Links open the PDF at the right page.
Rules for coding benign and malignant neoplasms: using the Neoplasm Table, sequencing primary and secondary sites, treatment encounters, complications, and current cancer versus personal history.
- Admission/Encounter for treatment of primary site (page 33)
- Admission/Encounter for treatment of secondary site (page 33)
- Coding and sequencing of complications (page 34)
- Primary malignancy previously excised (page 34)
- Admissions/Encounters involving antineoplastic chemotherapy, immunotherapy and radiation therapy (page 35)
- Admission/encounter to determine extent of malignancy (page 36)
- Symptoms, signs, and abnormal findings listed in Chapter 18 associated with neoplasms (page 36)
- Admission/encounter for pain control/management (page 36)
All codes under D00
D00 can't be used on a claim. Pick a billable code below; grey headings group them.
- D00.0Carcinoma in situ of lip, oral cavity and pharynx
- 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
D00 MS-DRGs
As the principal diagnosis, the billable codes under D00 group to MS-DRG 374, 375, or 376 (v44.0). Which one applies depends on procedures performed, secondary diagnoses (CC/MCC), and the patient's age and discharge status.
- DRG 374 Digestive Malignancy with MCC (2 of 11 codes)
- DRG 375 Digestive Malignancy with CC (2 of 11 codes)
- DRG 376 Digestive Malignancy without CC/MCC (2 of 11 codes)
Other codes that refer to D00
Notes on these codes point to D00.
About the condition
Plain-language background from MedlinePlus (National Library of Medicine), not coding guidance.
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 more about esophageal cancer on MedlinePlusOral Cancer
Oral cancer is cancer of the mouth. It is a type of head and neck cancer. Most oral cancers are squamous cell cancers. They begin in the flat cells that cover the surfaces of your mouth, tongue, and lips. The cancer cells may spread into deeper tissue as the cancer grows.
Read more about oral cancer on MedlinePlusCode history
Valid since FY2016, when ICD-10-CM took effect on October 1, 2015. No changes since.