DxCodebookFY2027 · Oct 1, 2026 – Sep 30, 2027

Category · FY2027

D01 Carcinoma in situ of other and unspecified digestive organs

  • Header · not billable

D01 is not billable. The category heads 9 billable codes in FY2027, grouped under 8 subdivisions.

Index → code

  • Dysplasiaanus (histologically confirmed) (mild) (moderate)severe → D01.3
  • Neoplasiaintraepithelial (histologically confirmed)anal (AIN) (histologically confirmed)severe → D01.3

Where it sits

  1. Chapter 2 Neoplasms (C00-D49)
  2. D00-D09 In situ neoplasms (D00-D09)
  3. D01 Carcinoma in situ of other and unspecified digestive organs
Billable codes
9
Subdivisions
8
CC / MCC codes
0 / 0
HCC V28 codes
0
New FY2027
0
Index entries
2

Codes in D01

  1. D01.0
    Carcinoma in situ of colon
    Billable
    Excludes1 1

    Excludes1

    • carcinoma in situ of rectosigmoid junction (D01.1) D01.1
  2. D01.1
    Carcinoma in situ of rectosigmoid junction
    Billable
  3. D01.2
    Carcinoma in situ of rectum
    Billable
  4. D01.3
    Carcinoma in situ of anus and anal canal
    Billable
    Inclusion terms 2, Excludes1 4

    Inclusion terms

    • Anal intraepithelial neoplasia III [AIN III]
    • Severe dysplasia of anus

    Excludes1

    • anal intraepithelial neoplasia I and II [AIN I and AIN II] (K62.82) K62.82
    • carcinoma in situ of anal margin (D04.5) D04.5
    • carcinoma in situ of anal skin (D04.5) D04.5
    • carcinoma in situ of perianal skin (D04.5) D04.5
  5. D01.4
    Carcinoma in situ of other and unspecified parts of intestine
    Header
    Excludes1 1

    Excludes1

    • carcinoma in situ of ampulla of Vater (D01.5) D01.5
  6. D01.40
    Carcinoma in situ of unspecified part of intestine
    Billable
  7. D01.49
    Carcinoma in situ of other parts of intestine
    Billable
  8. D01.5
    Carcinoma in situ of liver, gallbladder and bile ducts
    Billable
    Inclusion terms 1

    Inclusion terms

    • Carcinoma in situ of ampulla of Vater
  9. D01.7
    Carcinoma in situ of other specified digestive organs
    Billable
    Inclusion terms 1

    Inclusion terms

    • Carcinoma in situ of pancreas
  10. D01.9
    Carcinoma in situ of digestive organ, unspecified
    Billable

Sources of each column.

Instructions

At D01

Excludes1

  • melanoma in situ (D03.-) D03

Notes that also apply

Block D00-D09 instructions (Includes 4): printed on the block page.

Chapter 2 instructions (Notes 8): printed on the chapter 2 page.

Index entries

  • Dysplasiaanus (histologically confirmed) (mild) (moderate)severe → D01.3
  • Neoplasiaintraepithelial (histologically confirmed)anal (AIN) (histologically confirmed)severe → D01.3

NCHS Alphabetic Index. Index first, then the Tabular List.

Hierarchy