ICD-10-CM Tabular Index · Chapter 2 · FY 2027 C15

Malignant neoplasm of esophagus (C15) ICD-10-CM

The C15 code range covers malignant neoplasm of esophagus with 6 ICD-10-CM diagnosis codes. 5 of them are billable and valid for claim submission in fiscal year 2027, and the category headers group them but cannot themselves be billed.

✓ Built from the official CMS FY 2027 datasetEffective Oct 1, 2026 – Sep 30, 2027
6
Diagnosis Codes
5
Billable Codes
C15
Code Range
C15–C26
Parent Section

Use Additional Code

The “use additional code” indicates that a secondary code could be used to further specify the patient’s condition. This note is not mandatory and is only used if enough information is available to assign an additional code.

ICD-10-CM

Codes in the C15 Range 6 codes · 5 billable

6 of 6 shown
  • C15 Malignant neoplasm of esophagusNon-billable
  • C15.3 Malignant neoplasm of upper third of esophagus
  • C15.4 Malignant neoplasm of middle third of esophagus
  • C15.5 Malignant neoplasm of lower third of esophagus
  • C15.8 Malignant neoplasm of overlapping sites of esophagus
  • C15.9 Malignant neoplasm of esophagus, unspecified

Clinical Terms in This Code Range

Definitions from the National Library of Medicine for conditions coded in the C15 range.

Malignant Esophageal Neoplasm

A primary or metastatic malignant neoplasm involving the esophagus.

Malignant Neoplasm of the Lower Third of the Esophagus

A primary or metastatic malignant neoplasm involving the lower third segment of the esophagus.

Malignant Neoplasm of the Middle Third of the Esophagus

A primary or metastatic malignant neoplasm involving the middle third segment of the esophagus.

Malignant Neoplasm of the Upper Third of the Esophagus

A primary or metastatic malignant neoplasm involving the upper third segment of the esophagus.

About the C15 Code Range

Cancer involving the esophagus can begin there or spread there from another site.

C15 is divided by location in the esophagus: the upper third, middle third, or lower third. Separate subdivisions describe overlapping sites and an unspecified location.

Questions About This Page

How many billable codes are in the C15 range?

Of the 6 codes in this range, 5 are billable and valid for claim submission from October 1, 2026 through September 30, 2027. Category header codes group them but cannot be reported on claims.

What does the C15 range classify?

The range classifies malignant neoplasm of esophagus. Each code links to its own reference page with billing status, MS-DRG grouping, coding notes, and clinical information.

Related References

Source: CMS FY 2027 ICD-10-CM Tabular List and order file, effective October 1, 2026 through September 30, 2027.