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ICD-10-CM Codes
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C00-D49
Neoplasms
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C00-C14
Malignant neoplasms of lip, oral cavity and pharynx
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C04-
Malignant neoplasm of floor of mouth
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2021 ICD-10-CM Diagnosis Code C04.1
2021 ICD-10-CM Diagnosis Code C04.1
Malignant neoplasm of lateral floor of mouth
2016 2017 2018 2019 2020 2021 Billable/Specific Code
- C04.1 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
- The 2021 edition of ICD-10-CM C04.1 became effective on October 1, 2020.
- This is the American ICD-10-CM version of C04.1 - other international versions of ICD-10 C04.1 may differ.
The following code(s) above
C04.1 contain annotation back-references
Annotation Back-References
In this context, annotation back-references refer to codes that contain:
- Applicable To annotations, or
- Code Also annotations, or
- Code First annotations, or
- Excludes1 annotations, or
- Excludes2 annotations, or
- Includes annotations, or
- Note annotations, or
- Use Additional annotations
that may be applicable to
C04.1:
Approximate Synonyms
- Cancer of the floor of mouth, lateral portion
- Primary malignant neoplasm of lateral portion of floor of mouth
- Primary squamous cell carcinoma of lateral portion of floor of mouth
- Squamous cell carcinoma, lateral floor of mouth
ICD-10-CM C04.1 is grouped within Diagnostic Related Group(s) (MS-DRG v38.0):
- 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 C04.1 to ICD-9-CM
Code History
- 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
ICD-10-CM Codes Adjacent To C04.1
C02.3 Malignant neoplasm of anterior two-thirds of tongue, part unspecified
C02.4 Malignant neoplasm of lingual tonsil
C02.8 Malignant neoplasm of overlapping sites of tongue
C02.9 Malignant neoplasm of tongue, unspecified
C03 Malignant neoplasm of gum
C03.0 Malignant neoplasm of upper gum
C03.1 Malignant neoplasm of lower gum
C03.9 Malignant neoplasm of gum, unspecified
C04 Malignant neoplasm of floor of mouth
C04.0 Malignant neoplasm of anterior floor of mouth
C04.1
Malignant neoplasm of lateral floor of mouth
C04.8 Malignant neoplasm of overlapping sites of floor of mouth
C04.9 Malignant neoplasm of floor of mouth, unspecified
C05 Malignant neoplasm of palate
C05.0 Malignant neoplasm of hard palate
C05.1 Malignant neoplasm of soft palate
C05.2 Malignant neoplasm of uvula
C05.8 Malignant neoplasm of overlapping sites of palate
C05.9 Malignant neoplasm of palate, unspecified
C06 Malignant neoplasm of other and unspecified parts of mouth
C06.0 Malignant neoplasm of cheek mucosa
Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.