C01
Billable codeMalignant neoplasm of base of tongue
The ICD-10 code for malignant neoplasm of base of tongue is C01.
Clinical notes
Also known as
Alternate wording, synonyms, or specific conditions that fall under this code, listed to help confirm you've picked the right one.
- Malignant neoplasm of dorsal surface of base of tongue
- Malignant neoplasm of fixed part of tongue NOS
- Malignant neoplasm of posterior third of tongue
Use additional code
This code represents an underlying condition. When a related manifestation is also present, coding convention calls for an additional code to be listed after this one.
Documentation support
General coding-documentation guidance — not a substitute for payer-specific requirements or professional coding judgment.
- •If the associated manifestation or related condition noted above is also documented, an additional code should be reported alongside this one.
- •As a general rule, code to the highest level of specificity supported by the documentation in the medical record.
Related codes in this category
- C00Malignant neoplasm of lipnon-billable header
- C02Malignant neoplasm of other and unspecified parts of tonguenon-billable header
- C03Malignant neoplasm of gumnon-billable header
- C04Malignant neoplasm of floor of mouthnon-billable header
- C05Malignant neoplasm of palatenon-billable header
- C06Malignant neoplasm of other and unspecified parts of mouthnon-billable header
- C07Malignant neoplasm of parotid gland
- C08Malignant neoplasm of other and unspecified major salivary glandsnon-billable header
- C09Malignant neoplasm of tonsilnon-billable header
- C10Malignant neoplasm of oropharynxnon-billable header
- C11Malignant neoplasm of nasopharynxnon-billable header
- C12Malignant neoplasm of pyriform sinus
- C13Malignant neoplasm of hypopharynxnon-billable header
- C14Malignant neoplasm of other and ill-defined sites in the lip, oral cavity and pharynxnon-billable header
- C01Malignant neoplasm of base of tongue
ICD-9-CM equivalent
Informational only — GEM mappings are approximate, not guaranteed one-to-one equivalents. Verify before use in billing.
- 1410
Associated MS-DRGs
C01 can serve as the principal diagnosis for these Medicare Severity Diagnosis-Related Groups.
Informational only — actual DRG assignment also depends on procedures, complications/comorbidities (CC/MCC), discharge status, and payer-specific rules not reflected here.
- DRG 011Tracheostomy for Face, Mouth and Neck Diagnoses or Laryngectomy with MCC
- DRG 012Tracheostomy for Face, Mouth and Neck Diagnoses or Laryngectomy with CC
- DRG 013Tracheostomy for Face, Mouth and Neck Diagnoses or Laryngectomy without CC/MCC
- DRG 146Ear, Nose, Mouth and Throat Malignancy with MCC
- DRG 147Ear, Nose, Mouth and Throat Malignancy with CC
- DRG 148Ear, Nose, Mouth and Throat Malignancy without CC/MCC