ICD-10-CM Section C00-C14
Malignant neoplasms of lip, oral cavity and pharynx
- C00 Malignant neoplasm of lip NON-BILLABLE
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- BILLABLE C00.0 Malignant neoplasm of external upper lip
- BILLABLE C00.1 Malignant neoplasm of external lower lip
- BILLABLE C00.2 Malignant neoplasm of external lip, unspecified
- BILLABLE C00.3 Malignant neoplasm of upper lip, inner aspect
- BILLABLE C00.4 Malignant neoplasm of lower lip, inner aspect
- BILLABLE C00.5 Malignant neoplasm of lip, unspecified, inner aspect
- BILLABLE C00.6 Malignant neoplasm of commissure of lip, unspecified
- BILLABLE C00.8 Malignant neoplasm of overlapping sites of lip
- BILLABLE C00.9 Malignant neoplasm of lip, unspecified
- C02 Malignant neoplasm of other and unspecified parts of tongue NON-BILLABLE
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- BILLABLE C02.0 Malignant neoplasm of dorsal surface of tongue
- BILLABLE C02.1 Malignant neoplasm of border of tongue
- BILLABLE C02.2 Malignant neoplasm of ventral surface of tongue
- BILLABLE C02.3 Malignant neoplasm of anterior two-thirds of tongue, part unspecified
- BILLABLE C02.4 Malignant neoplasm of lingual tonsil
- BILLABLE C02.8 Malignant neoplasm of overlapping sites of tongue
- BILLABLE C02.9 Malignant neoplasm of tongue, unspecified
- C03 Malignant neoplasm of gum NON-BILLABLE
- C04 Malignant neoplasm of floor of mouth NON-BILLABLE
- C05 Malignant neoplasm of palate NON-BILLABLE
- C10 Malignant neoplasm of oropharynx NON-BILLABLE
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- BILLABLE C10.0 Malignant neoplasm of vallecula
- BILLABLE C10.1 Malignant neoplasm of anterior surface of epiglottis
- BILLABLE C10.2 Malignant neoplasm of lateral wall of oropharynx
- BILLABLE C10.3 Malignant neoplasm of posterior wall of oropharynx
- BILLABLE C10.4 Malignant neoplasm of branchial cleft
- BILLABLE C10.8 Malignant neoplasm of overlapping sites of oropharynx
- BILLABLE C10.9 Malignant neoplasm of oropharynx, unspecified
- C11 Malignant neoplasm of nasopharynx NON-BILLABLE
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- BILLABLE C11.0 Malignant neoplasm of superior wall of nasopharynx
- BILLABLE C11.1 Malignant neoplasm of posterior wall of nasopharynx
- BILLABLE C11.2 Malignant neoplasm of lateral wall of nasopharynx
- BILLABLE C11.3 Malignant neoplasm of anterior wall of nasopharynx
- BILLABLE C11.8 Malignant neoplasm of overlapping sites of nasopharynx
- BILLABLE C11.9 Malignant neoplasm of nasopharynx, unspecified
- C13 Malignant neoplasm of hypopharynx NON-BILLABLE
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- BILLABLE C13.0 Malignant neoplasm of postcricoid region
- BILLABLE C13.1 Malignant neoplasm of aryepiglottic fold, hypopharyngeal aspect
- BILLABLE C13.2 Malignant neoplasm of posterior wall of hypopharynx
- BILLABLE C13.8 Malignant neoplasm of overlapping sites of hypopharynx
- BILLABLE C13.9 Malignant neoplasm of hypopharynx, unspecified
Coding Notes for Section C00-C14
- Section Notes:
- Functional activity
- All neoplasms are classified in this chapter, whether they are functionally active or not. An additional code from Chapter 4 may be used, to identify functional activity associated with any neoplasm.
- Morphology [Histology]
- Chapter 2 classifies neoplasms primarily by site (topography), with broad groupings for behavior, malignant, in situ, benign, etc. The Table of Neoplasms should be used to identify the correct topography code. In a few cases, such as for malignant melanoma and certain neuroendocrine tumors, the morphology (histologic type) is included in the category and codes.
- Primary malignant neoplasms overlapping site boundaries
- A primary malignant neoplasm that overlaps two or more contiguous (next to each other) sites should be classified to the subcategory/code .8 ('overlapping lesion'), unless the combination is specifically indexed elsewhere. For multiple neoplasms of the same site that are not contiguous, such as tumors in different quadrants of the same breast, codes for each site should be assigned.
- Malignant neoplasm of ectopic tissue
- Malignant neoplasms of ectopic tissue are to be coded to the site mentioned, e.g., ectopic pancreatic malignant neoplasms are coded to pancreas, unspecified code C25.9.