ICD-10-CM Code C06.1

Malignant neoplasm of vestibule of mouth

Version 2020 Billable Code Neoplasm Malignant Primary

Valid for Submission

C06.1 is a billable code used to specify a medical diagnosis of malignant neoplasm of vestibule of mouth. The code is valid for the year 2020 for the submission of HIPAA-covered transactions. The ICD-10-CM code C06.1 might also be used to specify conditions or terms like carcinoma of lower buccal sulcus, carcinoma of lower labial sulcus, carcinoma of upper buccal sulcus, carcinoma of upper labial sulcus, malignant melanoma of oral cavity, malignant melanoma of vestibule of mouth, etc

The following anatomical sites found in the Table of Neoplasms apply to this code given the correct histological behavior: alveolar sulcus ; buccal (cavity) groove (lower) (upper) ; buccal (cavity) sulcus (lower) (upper) ; labial [See Also: Neoplasm, lip] sulcus (lower) (upper) ; mouth vestibule ; vestibule ; vestibule mouth ; etc

Short Description:Malignant neoplasm of vestibule of mouth
Long Description:Malignant neoplasm of vestibule of mouth

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 guidance for inclusions, exclusions, descriptions and more. The following references are applicable to the code C06.1:

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.
  • Malignant neoplasm of buccal sulcus (upper) (lower)
  • Malignant neoplasm of labial sulcus (upper) (lower)


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

  • Carcinoma of lower buccal sulcus
  • Carcinoma of lower labial sulcus
  • Carcinoma of upper buccal sulcus
  • Carcinoma of upper labial sulcus
  • Malignant melanoma of oral cavity
  • Malignant melanoma of vestibule of mouth
  • Malignant tumor of buccal mucosa
  • Malignant tumor of buccal mucosa
  • Malignant tumor of lower buccal sulcus
  • Malignant tumor of lower labial sulcus
  • Malignant tumor of upper buccal sulcus
  • Malignant tumor of upper labial sulcus
  • Malignant tumor of vestibule of mouth
  • Primary malignant neoplasm of vestibule of mouth
  • Tumor of lower buccal sulcus
  • Tumor of lower labial sulcus
  • Tumor of upper buccal sulcus
  • Tumor of upper labial sulcus

Convert C06.1 to ICD-9

  • 145.1 - Mal neo mouth vestibule

Code Classification

  • Neoplasms (C00–D48)
    • Malignant neoplasms of lip, oral cavity and pharynx (C00-C14)
      • Malignant neoplasm of other and unspecified parts of mouth (C06)

Code History

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

Table of Neoplasms

The code C06.1 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
CaInSitu Benign Uncertain
»buccal (cavity)
  »groove (lower) (upper)
»buccal (cavity)
  »sulcus (lower) (upper)
»labial [See Also: Neoplasm, lip]
  »sulcus (lower) (upper)

Information for Patients

Oral Cancer

Oral cancer can form in any part of the mouth. Most oral cancers begin in the flat cells that cover the surfaces of your mouth, tongue, and lips. Anyone can get oral cancer, but the risk is higher if you are male, use tobacco, drink lots of alcohol, have HPV, or have a history of head or neck cancer. Frequent sun exposure is also a risk factor for lip cancer.

Symptoms of oral cancer include

  • White or red patches in your mouth
  • A mouth sore that won't heal
  • Bleeding in your mouth
  • Loose teeth
  • Problems or pain with swallowing
  • A lump in your neck
  • An earache

Tests to diagnose oral cancer include a physical exam, endoscopy, biopsy, and imaging tests. Oral cancer treatments may include surgery, radiation therapy, and chemotherapy. Some patients have a combination of treatments.

NIH: National Cancer Institute

[Learn More]