Non-Billable / Non-Specific Code
ICD-10-CM D00 is the diagnosis code for Carcinoma in situ of oral cavity, esophagus and stomach. This code falls under the section "In situ neoplasms" within Chapter 2 — Neoplasms (C00-D49). It is a non-billable/non-specific ICD-10-CM code that should not be used for reimbursement. A more specific sub-code is required for billing. Medical coders and healthcare providers use this code to document and classify diagnoses in electronic health records, insurance claims, and clinical databases.
The following conditions should never be coded at the same time as D00. They are mutually exclusive:
Understanding where D00 sits in the ICD-10-CM classification helps ensure proper coding:
No, D00 is a non-billable/non-specific code. You should use a more specific sub-code for billing and reimbursement.
D00 is the ICD-10-CM diagnosis code for "Carcinoma in situ of oral cavity, esophagus and stomach". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.
D00 is located in Section D00-D09 — "In situ neoplasms" within Chapter 2 of the ICD-10-CM Tabular List.
D00 has 3 sub-code(s) that provide more specific detail: D00.0, D00.1, D00.2.
Use D00 when the patients documented diagnosis matches "Carcinoma in situ of oral cavity, esophagus and stomach" and the clinical documentation supports this level of specificity. Always verify with the latest ICD-10-CM guidelines and payer requirements.
The ICD-10-CM code for Carcinoma in situ of oral cavity, esophagus and stomach is D00.
No, D00 is non-billable. Use a more specific sub-code for primary diagnosis billing.
D00 is in Chapter 2 of the ICD-10-CM Tabular List.
Type 1 Excludes for D00 include: melanoma in situ (D03.-).
Yes, D00 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.