ICD-10 Diagnosis Code C15.9

Malignant neoplasm of esophagus, unspecified

Diagnosis Code C15.9

ICD-10: C15.9
Short Description: Malignant neoplasm of esophagus, unspecified
Long Description: Malignant neoplasm of esophagus, unspecified
This is the 2018 version of the ICD-10-CM diagnosis code C15.9

Valid for Submission
The code C15.9 is valid for submission for HIPAA-covered transactions.

Code Classification
  • Neoplasms (C00–D48)
    • Malignant neoplasms of digestive organs (C15-C26)
      • Malignant neoplasm of esophagus (C15)

Information for Medical Professionals

Diagnostic Related Groups
The diagnosis code C15.9 is grouped in the following Diagnostic Related Group(s) (MS-DRG V35.0)


Convert to ICD-9
  • 150.9 - Mal neo esophagus NOS

  • Adenocarcinoma of esophagus
  • Carcinoma of esophagus
  • Gastroduodenal disorder
  • Local recurrence of malignant tumor of esophagus
  • Lymphoma of lower esophagus
  • Malignant melanoma of esophagus
  • Malignant tumor of esophagus
  • Malignant tumor of esophagus, stomach and duodenum
  • Metastasis from malignant tumor of esophagus
  • Perforated carcinoma of esophagus
  • pM1a: Distant metastasis
  • pM1b: Distant metastasis
  • pN1a category
  • pN1a: Metastasis in 1 to 3 regional lymph nodes
  • pN1b category
  • pN1b: Metastasis in 4 to 7 regional lymph nodes
  • pN1c category
  • pN1c: Metastasis in more than 7 regional lymph nodes
  • Primary malignant neoplasm of esophagus
  • pT1: Tumor invades lamina propria or submucosa
  • pT1a: Tumor invades lamina propria
  • pT1b: Tumor invades submucosa
  • pT2: Tumor invades muscularis propria
  • pT3: Tumor invades adventitia
  • pT4: Tumor invades adjacent structures
  • Squamous cell carcinoma of esophagus
  • T1a: Esophagus/stomach tumor invades lamina propria
  • T1b: Esophagus/stomach tumor invades submucosa
  • T3: Esophageal tumor invades adventitia

Table of Neoplasms

The code C15.9 is included in the table of neoplasms by anatomical site. For each site there are six possible code numbers according to whether the neoplasm in question is malignant, benign, in situ, of uncertain behavior, or of unspecified nature. The description of the neoplasm will often indicate which of the six columns is appropriate.

Where such descriptors are not present, the remainder of the Index should be consulted where guidance is given to the appropriate column for each morphological (histological) variety listed. However, the guidance in the Index can be overridden if one of the descriptors mentioned above is present.

The Tabular must be reviewed for the complete diagnosis code.

Neoplasm, neoplastic Malignant
CaInSitu Benign Uncertain

Information for Patients

Esophageal Cancer

The esophagus is a hollow tube that carries food and liquids from your throat to your stomach. Early esophageal cancer usually does not cause symptoms. Later, you may have symptoms such as

  • Painful or difficult swallowing
  • Weight loss
  • A hoarse voice or cough that doesn't go away

You're at greater risk for getting esophageal cancer if you smoke, drink heavily, or have acid reflux. Your risk also goes up as you age

Your doctor uses imaging tests and a biopsy to diagnose esophageal cancer. Treatments include surgery, radiation, and chemotherapy. You might also need nutritional support, since the cancer or treatment may make it hard to swallow.

NIH: National Cancer Institute

  • Coughing up blood (Medical Encyclopedia)
  • Diet and eating after esophagectomy (Medical Encyclopedia)
  • Esophageal cancer (Medical Encyclopedia)
  • Esophagectomy - minimally invasive (Medical Encyclopedia)
  • Esophagectomy - open (Medical Encyclopedia)
  • Swallowing problems (Medical Encyclopedia)
  • Understanding Chemotherapy - NIH - Easy-to-Read (National Cancer Institute)
  • What to Know about Brachytherapy (A Type of Internal Radiation Therapy) - NIH - Easy-to-Read (National Cancer Institute)
  • What to Know about External Beam Radiation Therapy - NIH - Easy-to-Read (National Cancer Institute)

[Read More]

ICD-10 Footnotes

General Equivalence Map Definitions
The ICD-10 and ICD-9 GEMs are used to facilitate linking between the diagnosis codes in ICD-9-CM and the new ICD-10-CM code set. The GEMs are the raw material from which providers, health information vendors and payers can derive specific applied mappings to meet their needs.

  • Approximate Flag - The approximate flag is on, indicating that the relationship between the code in the source system and the code in the target system is an approximate equivalent.
  • No Map Flag - The no map flag indicates that a code in the source system is not linked to any code in the target system.
  • Combination Flag - The combination flag indicates that more than one code in the target system is required to satisfy the full equivalent meaning of a code in the source system.

Present on Admission
The Present on Admission (POA) indicator is used for diagnosis codes included in claims involving inpatient admissions to general acute care hospitals. POA indicators must be reported to CMS on each claim to facilitate the grouping of diagnoses codes into the proper Diagnostic Related Groups (DRG). CMS publishes a listing of specific diagnosis codes that are exempt from the POA reporting requirement.

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