ICD-10-CM 2027 diagnosis code

D09.1Carcinoma in situ of other and unspecified urinary organs

Not billable — use a more specific code

D09.1 is a header code, so it can't be reported by itself. Choose one of the 2 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 D09.1

D09.1 is the ICD-10-CM diagnosis code for carcinoma in situ of other and unspecified urinary organs. It belongs to category D09 (carcinoma in situ of other and unspecified sites), 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 2 subcodes must be used instead.

Within D09, choose D09.1 (situ of other and unspecified urinary organs) only when documentation doesn't support a more specific option: situ of bladder (D09.0), situ of eye (D09.2), situ of thyroid and other endocrine glands (D09.3), situ of other specified sites (D09.8) and situ, unspecified (D09.9).

To report this condition, pick the subcode that matches the documentation: D09.10 (organ) and D09.19 (organs).

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 D09.1

Notes that apply from higher levels

Instructions written at a parent level also apply to D09.1.

› From D09 Carcinoma in situ of other and unspecified sites

Excludes1

melanoma in situ (D03.-)

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 D09.1

Is D09.1 billable?: No. D09.1 is a header code. Report one of its more specific subcodes instead.