Is ICD-10-CM code D01 billable?

No, D01 (Carcinoma in situ of other and unspecified digestive organs) 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 D01 belong to?

D01 belongs to Chapter 2 of the ICD-10-CM tabular list: C00–D49 (Neoplasms).

D01Not billable, use a more specific code below

Carcinoma in situ of other and unspecified digestive organs

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

9 billable codes under D01: 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 D01.

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 D01

D01 can't be used on a claim. Pick a billable code below; grey headings group them.

D01 MS-DRGs

As the principal diagnosis, the billable codes under D01 group to these 9 MS-DRGs (v44.0). Which one applies depends on procedures performed, secondary diagnoses (CC/MCC), and the patient's age and discharge status.

DRG 374 Digestive Malignancy with MCC (8 of 9 codes)
DRG 375 Digestive Malignancy with CC (8 of 9 codes)
DRG 376 Digestive Malignancy without CC/MCC (8 of 9 codes)
DRG 146 Ear, Nose, Mouth and Throat Malignancy with MCC (1 of 9 codes)
DRG 147 Ear, Nose, Mouth and Throat Malignancy with CC (1 of 9 codes)
DRG 148 Ear, Nose, Mouth and Throat Malignancy without CC/MCC (1 of 9 codes)
DRG 435 Malignancy of Hepatobiliary System or Pancreas with MCC (1 of 9 codes)
DRG 436 Malignancy of Hepatobiliary System or Pancreas with CC (1 of 9 codes)
DRG 437 Malignancy of Hepatobiliary System or Pancreas without CC/MCC (1 of 9 codes)

Other codes that refer to D01

Notes on these codes point to D01.

Z86.004 Includes: Conditions classifiable to D01

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.

Digestive Diseases

When you eat, your body breaks food down to a form it can use to build and nourish cells and provide energy. This process is called digestion. Your digestive system is a series of hollow organs joined in a long, twisting tube. It runs from your mouth to your anus and includes your esophagus, stomach, and small and large intestines. Your liver, gallbladder and pancreas are also involved. They produce juices to help digestion.

Code history

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