ICD-10-CM 2027 diagnosis code

D09Carcinoma in situ of other and unspecified sites

Not billable — use a more specific code

D09 is a header code, so it can't be reported by itself. Choose one of the 6 more specific codes beneath it.

Code unchanged since ICD-10-CM took effect on October 1, 2015. Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data

About D09

D09 is the ICD-10-CM diagnosis code for carcinoma in situ of other and unspecified sites. It belongs to block D00-D09 (in situ neoplasms) and chapter 2 (neoplasms). It is a header code, so it can't be reported by itself; one of its 6 subcodes must be used instead.

To report this condition, pick the subcode that matches the documentation: D09.0 (bladder), D09.1 (organs), D09.2 (eye), D09.3 (glands), D09.8 (sites) and D09.9 (unspecified).

Don't report D09 together with the conditions in its Excludes1 note: melanoma in situ (D03.-).

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.

Specific codes under D09

Coding notes

Excludes1Not coded here — never report together with this code

melanoma in situ (D03.-)

Notes that apply from higher levels

Instructions written at a parent level also apply to D09.

Broader instructions also apply from D00-D09 In situ neoplasms and Chapter 2: Neoplasms.

Code history

2016
2017
2018
2019
2020
2021
2022
2023
2024
2025
2026
2027

FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
No changes since FY2016.

Common questions about D09

Is D09 billable?: No. D09 is a header code. Report one of its more specific subcodes instead.