2022 ICD-10-CM Code C12

Malignant neoplasm of pyriform sinus

Version 2021

Valid for Submission

ICD-10:C12
Short Description:Malignant neoplasm of pyriform sinus
Long Description:Malignant neoplasm of pyriform sinus

Code Classification

  • Neoplasms (C00–D48)
    • Malignant neoplasms of lip, oral cavity and pharynx (C00-C14)
      • Malignant neoplasm of pyriform sinus (C12)

C12 is a billable diagnosis code used to specify a medical diagnosis of malignant neoplasm of pyriform sinus. The code C12 is valid during the fiscal year 2022 from October 01, 2021 through September 30, 2022 for the submission of HIPAA-covered transactions.

The ICD-10-CM code C12 might also be used to specify conditions or terms like malignant tumor of pyriform fossa, neoplasm of pyriform sinus, primary malignant neoplasm of pyriform sinus or primary squamous cell carcinoma of pyriform sinus.

The following anatomical sites found in the Table of Neoplasms apply to this code given the correct histological behavior: fossa (of) piriform ; fossa (of) pyriform ; hypopharynx, hypopharyngeal NEC pyriform fossa (sinus) ; piriform fossa or sinus ; pyriform fossa or sinus ; sinus (accessory) pyriform ; etc

Tabular List of Diseases and Injuries

The Tabular List of Diseases and Injuries is a list of ICD-10 codes, organized "head to toe" into chapters and sections with coding notes and guidance for inclusions, exclusions, descriptions and more. The following references are applicable to the code C12:


Inclusion Terms

Inclusion Terms
These terms are the conditions for which that code is to be used. The terms may be synonyms of the code title, or, in the case of "other specified" codes, the terms are a list of the various conditions assigned to that code. The inclusion terms are not necessarily exhaustive. Additional terms found only in the Alphabetic Index may also be assigned to a code.

Use Additional Code

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.

Approximate Synonyms

The following clinical terms are approximate synonyms or lay terms that might be used to identify the correct diagnosis code:

Convert C12 to ICD-9 Code

Table of Neoplasms

The code C12 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.

Neoplasm, neoplastic Malignant
Primary
Malignant
Secondary
CaInSitu Benign Uncertain
Behavior
Unspecified
Behavior
»fossa (of)
  »piriform
C12C79.89D00.08D10.7D37.05D49.0
»fossa (of)
  »pyriform
C12C79.89D00.08D10.7D37.05D49.0
»hypopharynx, hypopharyngeal NEC
  »pyriform fossa (sinus)
C12C79.89D00.08D10.7D37.05D49.0
»piriform fossa or sinus
C12C79.89D00.08D10.7D37.05D49.0
»pyriform fossa or sinus
C12C79.89D00.08D10.7D37.05D49.0
»sinus (accessory)
  »pyriform
C12C79.89D00.08D10.7D37.05D49.0

Information for Patients


Throat Cancer

Throat cancer is a type of head and neck cancer. Throat cancer has different names, depending on which part of the throat is affected. The different parts of your throat are called the oropharynx, the hypopharynx, the nasopharynx, and the larynx, or voice box.

The main risk factors for throat cancer are using tobacco heavy drinking. Certain types of throat cancer also have other risk factors. For example, having HPV is a risk factor for oropharyngeal cancer.

Symptoms of throat cancer may include

To diagnose throat cancers, doctors may do a physical exam and history, imaging tests, and a biopsy. You may also need other tests, depending on the type of cancer. Treatments include surgery, radiation therapy, and chemotherapy. Treatment for some types of throat cancer may also include targeted therapy. Targeted therapy uses drugs or other substances that attack specific cancer cells with less harm to normal cells.

NIH: National Cancer Institute


[Learn More in MedlinePlus]

Code History

  • FY 2021 - No Change, effective from 10/1/2020 through 9/30/2021
  • FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020
  • FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019
  • FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018
  • FY 2017 - No Change, effective from 10/1/2016 through 9/30/2017
  • FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016 (First year ICD-10-CM implemented into the HIPAA code set)