2026 ICD-10-CM Diagnosis Code D09.0Carcinoma in situ of bladder

ICD-10-CM Codes›C00–D49›D00-D09›D09

ICD-10-CM D09.0
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

D09.0 is a billable ICD-10-CM diagnosis code for carcinoma in situ of bladder. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 656 through 658, 686 through 688. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Urinary system cancers - bladder.

Code Identity

ICD-10-CM Code
D09.0
Billable Status
Yes — Valid for Submission
Code Describes
Carcinoma in situ of bladder
Short Description
Carcinoma in situ of bladder
Same as the full description in the CMS dataset.
Parent Code
D09
Carcinoma in situ of other and unspecified sites

Code Classification

ChapterC00–D49Neoplasms
SectionD00-D09In situ neoplasms
CategoryD09Carcinoma in situ of other and unspecified sites
This CodeD09.0Carcinoma in situ of bladder

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Carcinoma in situ of anterior wall of urinary bladder
  • Carcinoma in situ of apex of urinary bladder
  • Carcinoma in situ of dome of urinary bladder
  • Carcinoma in situ of lateral wall of urinary bladder
  • Carcinoma in situ of posterior wall of urinary bladder
  • Carcinoma in situ of trigone of urinary bladder
  • Carcinoma in situ of urachus
  • Carcinoma in situ of ureter
  • Carcinoma in situ of ureteric orifice of urinary bladder
  • Carcinoma in situ of urinary bladder
  • Carcinoma in situ of urinary bladder neck
  • Neoplasm of anterior wall of urinary bladder
  • Neoplasm of apex of urinary bladder
  • Neoplasm of dome of urinary bladder
  • Neoplasm of lateral wall of urinary bladder
  • Neoplasm of posterior wall of urinary bladder
  • Neoplasm of trigone of urinary bladder
  • Neoplasm of urachus
  • Neoplasm of ureteric orifice of urinary bladder
  • Neoplasm of urinary bladder neck

Clinical ClassificationClinical

AHRQ’s CCSR groups this code into broader clinical categories.

CCSR NEO043
Urinary system cancers - bladder
Default principal diagnosis: inpatient Yes · outpatient Yes

Clinical InformationClinical

  • Urachus

    an embryonic structure originating from the allantois. it is a canal connecting the fetal urinary bladder and the umbilicus. it is normally converted into a fibrous cord postnatally. when the canal fails to be filled and remains open (patent urachus), urine leaks through the umbilicus.

Table of NeoplasmsClinical

Anatomical sites in the Table of Neoplasms that reference this code family.

SiteMalig.
Primary		Malig.
Secondary		Ca
in situ		BenignUncertainUnspec.
bladder (urinary)C67.9C79.11D09.0D30.3D41.4D49.4
bladder (urinary) › domeC67.1C79.11D09.0D30.3D41.4D49.4
bladder (urinary) › neckC67.5C79.11D09.0D30.3D41.4D49.4
bladder (urinary) › orificeC67.9C79.11D09.0D30.3D41.4D49.4
bladder (urinary) › orifice › uretericC67.6C79.11D09.0D30.3D41.4D49.4
bladder (urinary) › orifice › urethralC67.5C79.11D09.0D30.3D41.4D49.4
bladder (urinary) › sphincterC67.8C79.11D09.0D30.3D41.4D49.4
bladder (urinary) › trigoneC67.0C79.11D09.0D30.3D41.4D49.4
bladder (urinary) › urachusC67.7C79.11D09.0D30.3D41.4D49.4
bladder (urinary) › wallC67.9C79.11D09.0D30.3D41.4D49.4
bladder (urinary) › wall › anteriorC67.3C79.11D09.0D30.3D41.4D49.4
bladder (urinary) › wall › lateralC67.2C79.11D09.0D30.3D41.4D49.4
bladder (urinary) › wall › posteriorC67.4C79.11D09.0D30.3D41.4D49.4
urachusC67.7C79.11D09.0D30.3D41.4D49.4
ureter, ureteral › orifice (bladder)C67.6C79.11D09.0D30.3D41.4D49.4
ureter-bladder (junction)C67.6C79.11D09.0D30.3D41.4D49.4
urethra, urethral (gland) › orifice, internalC67.5C79.11D09.0D30.3D41.4D49.4

Patient EducationClinical

Bladder Cancer

The bladder is a hollow organ in your lower abdomen that stores urine. Bladder cancer occurs in the lining of the bladder. It is the sixth most common type of cancer in the United States.

Read the full article at MedlinePlus

Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.

Convert D09.0 to ICD-9-CMHistory

The closest ICD-9-CM equivalents under the General Equivalence Mappings.

ICD-9-CM
233.7 Ca in situ bladder
Exact Match The mapping is direct, with no qualifiers.

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 D09.0Overview

Is D09.0 (Carcinoma in situ of other and unspecified sites) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report carcinoma in situ of bladder on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

What MS-DRG does D09.0 group to?

When carcinoma in situ of bladder is the principal diagnosis on an inpatient stay, it groups to MS-DRG 656, 657, 658, 686, 687, 688, with relative weights from 0.7903 to 3.1838 depending on complications. Higher weights mean higher Medicare reimbursement.

What is the ICD-9 equivalent of D09.0?

Under the General Equivalence Mappings, carcinoma in situ of bladder converts to ICD-9-CM 233.7 (ca in situ bladder). The mapping is a direct match.

Footnotes

[1] Chronic - a chronic condition code indicates a condition lasting 12 months or longer and its effect on the patient based on one or both of the following criteria:

  • The condition results in the need for ongoing intervention with medical products,treatment, services, and special equipment
  • The condition places limitations on self-care, independent living, and social interactions.