Carcinoma in situ of other and unspecified digestive organs (D01) ICD-10-CM
The D01 code range covers carcinoma in situ of other and unspecified digestive organs with 11 ICD-10-CM diagnosis codes. 9 of them are billable and valid for claim submission in fiscal year 2027, and the category headers group them but cannot themselves be billed.
Type 1 Excludes
A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
- melanoma in situ D03
Codes in the D01 Range 11 codes · 9 billable
- D01 Carcinoma in situ of other and unspecified digestive organsNon-billable
- D01.0 Carcinoma in situ of colon
- D01.1 Carcinoma in situ of rectosigmoid junction
- D01.2 Carcinoma in situ of rectum
- D01.3 Carcinoma in situ of anus and anal canal
- D01.4 Carcinoma in situ of other and unspecified parts of intestineNon-billable
- D01.40 Carcinoma in situ of unspecified part of intestine
- D01.49 Carcinoma in situ of other parts of intestine
- D01.5 Carcinoma in situ of liver, gallbladder and bile ducts
- D01.7 Carcinoma in situ of other specified digestive organs
- D01.9 Carcinoma in situ of digestive organ, unspecified
Clinical Terms in This Code Range
Definitions from the National Library of Medicine for conditions coded in the D01 range.
Colon Carcinoma In Situ
An intraepithelial carcinoma arising from the colon without evidence of invasion.
Digestive System Carcinoma In Situ
An intraepithelial carcinoma arising from any part of the digestive system without evidence of invasion.
Rectal Carcinoma In Situ
An intraepithelial carcinoma arising from the rectum without evidence of invasion.
Rectosigmoid Carcinoma In Situ
An intraepithelial carcinoma arising from the rectosigmoid junction without evidence of invasion.
About the D01 Code Range
Carcinoma in situ may affect the colon, rectum, anus, liver, gallbladder, bile ducts, or other digestive organs.
The codes separate sites within the intestine: D01.0 identifies the colon, D01.1 the rectosigmoid junction, and D01.2 the rectum. D01.3 identifies the anus and anal canal. D01.4 divides other parts of the intestine from an unspecified part.
Beyond the intestine, D01.5 groups the liver, gallbladder, and bile ducts. D01.7 identifies another specified digestive organ, while D01.9 leaves the digestive organ unspecified.
Questions About This Page
How many billable codes are in the D01 range?
Of the 11 codes in this range, 9 are billable and valid for claim submission from October 1, 2026 through September 30, 2027. Category header codes group them but cannot be reported on claims.
What does the D01 range classify?
The range classifies carcinoma in situ of other and unspecified digestive organs. Each code links to its own reference page with billing status, MS-DRG grouping, coding notes, and clinical information.
Related References
Source: CMS FY 2027 ICD-10-CM Tabular List and order file, effective October 1, 2026 through September 30, 2027.
