C09.1 - Malignant neoplasm of tonsillar pillar (anterior) (posterior)
| ICD-10: | C09.1 |
| Short Description: | Malig neoplasm of tonsillar pillar (anterior) (posterior) |
| Long Description: | Malignant neoplasm of tonsillar pillar (anterior) (posterior) |
| Status: | Valid for Submission |
| Version: | ICD-10-CM 2023 |
| Code Classification: |
C09.1 is a billable ICD-10 code used to specify a medical diagnosis of malignant neoplasm of tonsillar pillar (anterior) (posterior). The code is valid during the fiscal year 2023 from October 01, 2022 through September 30, 2023 for the submission of HIPAA-covered transactions.
The following anatomical sites found in the Table of Neoplasms reference this diagnosis code given the correct histological behavior: Neoplasm, neoplastic fauces, faucial NEC pillars ; Neoplasm, neoplastic glossopalatine fold ; Neoplasm, neoplastic oropharynx pillars or fauces ; Neoplasm, neoplastic palatoglossal arch ; Neoplasm, neoplastic palatopharyngeal arch ; Neoplasm, neoplastic pillars of fauces ; Neoplasm, neoplastic tonsil pillar (anterior) (posterior) ; etc
Approximate Synonyms
The following clinical terms are approximate synonyms or lay terms that might be used to identify the correct diagnosis code:
- Malignant melanoma of palatine arch
- Malignant tumor of anterior pillar of fauces
- Malignant tumor of tonsillar pillar
- Primary malignant neoplasm of tonsillar pillar
- Primary squamous cell carcinoma of tonsillar pillar
- Tumor of anterior pillar of fauces
Convert to ICD-9 Code
| Source ICD-10 Code | Target ICD-9 Code | |
|---|---|---|
| C09.1 | 146.2 - Mal neo tonsil pillars |
Table of Neoplasms
This code is referenced 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 |
|---|---|---|---|---|---|---|
| »Neoplasm, neoplastic »fauces, faucial NEC »pillars | C09.1 | C79.89 | D00.08 | D10.5 | D37.05 | D49.0 |
| »Neoplasm, neoplastic »glossopalatine fold | C09.1 | C79.89 | D00.08 | D10.5 | D37.05 | D49.0 |
| »Neoplasm, neoplastic »oropharynx »pillars or fauces | C09.1 | C79.89 | D00.08 | D10.5 | D37.05 | D49.0 |
| »Neoplasm, neoplastic »palatoglossal arch | C09.1 | C79.89 | D00.00 | D10.5 | D37.09 | D49.0 |
| »Neoplasm, neoplastic »palatopharyngeal arch | C09.1 | C79.89 | D00.00 | D10.5 | D37.09 | D49.0 |
| »Neoplasm, neoplastic »pillars of fauces | C09.1 | C79.89 | D00.08 | D10.5 | D37.05 | D49.0 |
| »Neoplasm, neoplastic »tonsil »pillar (anterior) (posterior) | C09.1 | C79.89 | D00.08 | D10.5 | D37.05 | D49.0 |
Patient Education
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:
- A sore throat that does not go away
- A lump in the neck
- Pain or ringing in the ears
- Trouble swallowing
- Ear pain
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 2023 - No Change, effective from 10/1/2022 through 9/30/2023
- FY 2022 - No Change, effective from 10/1/2021 through 9/30/2022
- 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)
