1. ICD-10-CM Codes
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2. C00-D49
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3. C00-C14
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4. C01-
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5. 2023 ICD-10-CM Diagnosis Code C01

2023 ICD-10-CM Diagnosis Code C01

Malignant neoplasm of base of tongue

2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code

• C01 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
• The 2023 edition of ICD-10-CM C01 became effective on October 1, 2022.
• This is the American ICD-10-CM version of C01 - other international versions of ICD-10 C01 may differ.

• Cancer of the tongue, base
• Primary malignant neoplasm of base of tongue
• Primary squamous cell carcinoma of base of tongue
• Squamous cell carcinoma, base of tongue

• 011 Tracheostomy for face, mouth and neck diagnoses or laryngectomy with mcc
• 012 Tracheostomy for face, mouth and neck diagnoses or laryngectomy with cc
• 013 Tracheostomy for face, mouth and neck diagnoses or laryngectomy without cc/mcc
• 146 Ear, nose, mouth and throat malignancy with mcc
• 147 Ear, nose, mouth and throat malignancy with cc
• 148 Ear, nose, mouth and throat malignancy without cc/mcc

Convert C01 to ICD-9-CM

• 2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
• 2017 (effective 10/1/2016): No change
• 2018 (effective 10/1/2017): No change
• 2019 (effective 10/1/2018): No change
• 2020 (effective 10/1/2019): No change
• 2021 (effective 10/1/2020): No change
• 2022 (effective 10/1/2021): No change
• 2023 (effective 10/1/2022): No change

• Type 2 Excludes: C02.0
  ICD-10-CM Diagnosis Code C02.0

  Malignant neoplasm of dorsal surface of tongue

  2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code

  Applicable To

  • Malignant neoplasm of anterior two-thirds of tongue, dorsal surface

  Type 2 Excludes

  • malignant neoplasm of dorsal surface of base of tongue (C01)

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.