Is ICD-10-CM code D09 billable?

No, D09 (Carcinoma in situ of other and unspecified sites) is a non-billable ICD-10-CM code. It must be coded to a more specific subcategory before it can be used for reimbursement.

What chapter does ICD-10-CM code D09 belong to?

D09 belongs to Chapter 2 of the ICD-10-CM tabular list: C00–D49 (Neoplasms).

D09Not billable, use a more specific code below

Carcinoma in situ of other and unspecified sites

In In situ neoplasms (D00-D09), chapter 2: Neoplasms

9 billable codes under D09: none are a CC or MCC; none map to an HCC.

Instructional notes

Excludes1: not coded here, use a different code

melanoma in situ (D03.-)

Also applies, from In situ neoplasms (D00-D09)

These notes sit on D00-D09 and apply to every code under it, including D09.

Includes: conditions that are coded here

Bowen's disease
erythroplasia
grade III intraepithelial neoplasia
Queyrat's erythroplasia

Official coding guidelines

From the ICD-10-CM Official Guidelines for Coding and Reporting, FY 2027 (CMS and NCHS). Links open the PDF at the right page.

Rules for coding benign and malignant neoplasms: using the Neoplasm Table, sequencing primary and secondary sites, treatment encounters, complications, and current cancer versus personal history.

Admission/Encounter for treatment of primary site (page 33)
Admission/Encounter for treatment of secondary site (page 33)
Coding and sequencing of complications (page 34)
Primary malignancy previously excised (page 34)
Admissions/Encounters involving antineoplastic chemotherapy, immunotherapy and radiation therapy (page 35)
Admission/encounter to determine extent of malignancy (page 36)
Symptoms, signs, and abnormal findings listed in Chapter 18 associated with neoplasms (page 36)
Admission/encounter for pain control/management (page 36)

Read Section I.C.2 (page 32), 12 more topics

All codes under D09

D09 can't be used on a claim. Pick a billable code below; grey headings group them.

D09 MS-DRGs

As the principal diagnosis, the billable codes under D09 group to these 22 MS-DRGs (v44.0). Which one applies depends on procedures performed, secondary diagnoses (CC/MCC), and the patient's age and discharge status.

DRG 124 Other Disorders of the Eye with MCC or Thrombolytic Agent (3 of 9 codes)
DRG 125 Other Disorders of the Eye without MCC (3 of 9 codes)
DRG 656 Kidney and Ureter Procedures for Neoplasm with MCC (3 of 9 codes)
DRG 657 Kidney and Ureter Procedures for Neoplasm with CC (3 of 9 codes)
DRG 658 Kidney and Ureter Procedures for Neoplasm without CC/MCC (3 of 9 codes)
DRG 686 Kidney and Urinary Tract Neoplasms with MCC (3 of 9 codes)
DRG 687 Kidney and Urinary Tract Neoplasms with CC (3 of 9 codes)
DRG 688 Kidney and Urinary Tract Neoplasms without CC/MCC (3 of 9 codes)
DRG 826 Myeloproliferative Disorders or Poorly Differentiated Neoplasms with Major O.R. Procedures with MCC (3 of 9 codes)
DRG 827 Myeloproliferative Disorders or Poorly Differentiated Neoplasms with Major O.R. Procedures with CC (3 of 9 codes)
DRG 828 Myeloproliferative Disorders or Poorly Differentiated Neoplasms with Major O.R. Procedures without CC/MCC (3 of 9 codes)
DRG 829 Myeloproliferative Disorders or Poorly Differentiated Neoplasms with Other Procedures with CC/MCC (3 of 9 codes)
DRG 830 Myeloproliferative Disorders or Poorly Differentiated Neoplasms with Other Procedures without CC/MCC (3 of 9 codes)
DRG 843 Other Myeloproliferative Disorders or Poorly Differentiated Neoplastic Diagnoses with MCC (3 of 9 codes)
DRG 844 Other Myeloproliferative Disorders or Poorly Differentiated Neoplastic Diagnoses with CC (3 of 9 codes)
DRG 845 Other Myeloproliferative Disorders or Poorly Differentiated Neoplastic Diagnoses without CC/MCC (3 of 9 codes)
DRG 154 Other Ear, Nose, Mouth and Throat Diagnoses with MCC (1 of 9 codes)
DRG 155 Other Ear, Nose, Mouth and Throat Diagnoses with CC (1 of 9 codes)
DRG 156 Other Ear, Nose, Mouth and Throat Diagnoses without CC/MCC (1 of 9 codes)
DRG 157 Dental and Oral Diseases with MCC (1 of 9 codes)
DRG 158 Dental and Oral Diseases with CC (1 of 9 codes)
DRG 159 Dental and Oral Diseases without CC/MCC (1 of 9 codes)

Other codes that refer to D09

Notes on these codes point to D09.

Z86.00 Includes: Conditions classifiable to D00-D09
Z86.008 Includes: Conditions classifiable to D09

About the condition

Plain-language background from MedlinePlus (National Library of Medicine), not coding guidance.

Cancer

Cancer is not just one disease but many diseases. Cancer begins in your cells, which are the building blocks of your body. Usually, your body forms new cells as needed, replacing old cells that die. Sometimes this process goes wrong. New cells grow even when you don't need them, and old cells don't die when they should. These extra cells can form a mass called a tumor.

Code history

Valid since FY2016, when ICD-10-CM took effect on October 1, 2015. No changes since.