2026 ICD-10-CM Diagnosis Code D01Carcinoma in situ of other and unspecified digestive organs

ICD-10-CM Codes›C00–D49›D00-D09›D01

ICD-10-CM D01
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

D01 is a non-billable ICD-10-CM category code for carcinoma in situ of other and unspecified digestive organs, so it cannot be submitted on claims. Use a more specific code from this category instead, such as D01.0, D01.1, D01.2, and D01.3.

Code Identity

ICD-10-CM Code
D01
Billable Status
No — Non-Billable Category
Code Describes
Carcinoma in situ of other and unspecified digestive organs
Short Description
Carcinoma in situ of other and unspecified digestive organs
Same as the full description in the CMS dataset.
Chapter
D00-D09
In situ neoplasms

Code Classification

ChapterC00–D49Neoplasms
SectionD00-D09In situ neoplasms
CategoryD01Carcinoma in situ of other and unspecified digestive organs
This CodeD01Carcinoma in situ of other and unspecified digestive organs

Specific Coding for Carcinoma in situ of other and unspecified digestive organsOverview

Non-specific codes like D01 require more characters. Use one of these billable codes instead:

  • Use D01.0 for Carcinoma in situ of colon

  • Use D01.1 for Carcinoma in situ of rectosigmoid junction

  • Use D01.2 for Carcinoma in situ of rectum

  • Use D01.3 for Carcinoma in situ of anus and anal canal

  • D01.4 for Carcinoma in situ of other and unspecified parts of intestine

  • Use D01.40 for Carcinoma in situ of unspecified part of intestine

  • Use D01.49 for Carcinoma in situ of other parts of intestine

  • Use D01.5 for Carcinoma in situ of liver, gallbladder and bile ducts

  • Use D01.7 for Carcinoma in situ of other specified digestive organs

  • Use D01.9 for Carcinoma in situ of digestive organ, unspecified

Tabular List NotesGuidance

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

Type 1 Excludes

  • melanoma in situ D03

Patient EducationClinical

Cancer

Cancer is not just one disease but many diseases. Cancer begins in your cells, which are the building blocks of your body. Usually, your body forms new cells as needed, replacing old cells that die. Sometimes this process goes wrong. New cells grow even when you don't need them, and old cells don't die when they should.

The full article covers:

  • What is cancer?
  • What are the types of cancer?
  • How does cancer develop?
  • What are the symptoms of cancer?
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  • What are the treatments for cancer?
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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 D01Overview

Is D01 (Carcinoma in situ of other and unspecified digestive organs) a billable code?

No. This is a category header that groups the codes for carcinoma in situ of other and unspecified digestive organs, and headers cannot be submitted on claims. Claims for carcinoma in situ of other and unspecified digestive organs need a more specific code from this category, such as D01.0, D01.1, and D01.2.