C13

Malignant neoplasm of hypopharynx

Non-billable header

C13 is a non-billable header code. Use one of the more specific codes below.

Inclusion terms

Includes

  • Note: Functional activity
  • Note: 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.
  • Note: Morphology [Histology]
  • Note: 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.
  • Note: Primary malignant neoplasms overlapping site boundaries
  • Note: 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.
  • Note: Malignant neoplasm of ectopic tissue
  • Note: Malignant neoplasms of ectopic tissue are to be coded to the site mentioned, e.g., ectopic pancreatic malignant neoplasms are coded to pancreas, unspecified (C25.9).

Excludes2

Not included here — may be reported together when both conditions exist.

  • malignant neoplasm of pyriform sinus (C12)

Use additional code

Add a code to identify the following, if applicable.

  • code to identify:
  • exposure to environmental tobacco smoke (Z77.22)
  • exposure to tobacco smoke in the perinatal period (P96.81)
  • history of tobacco dependence (Z87.891)
  • occupational exposure to environmental tobacco smoke (Z57.31)
  • tobacco dependence (F17.-)
  • tobacco use (Z72.0)

More specific codes C13

  • C13.0Malignant neoplasm of postcricoid regionBillable
  • C13.1Malignant neoplasm of aryepiglottic fold, hypopharyngeal aspectBillable
  • C13.2Malignant neoplasm of posterior wall of hypopharynxBillable
  • C13.8Malignant neoplasm of overlapping sites of hypopharynxBillable
  • C13.9Malignant neoplasm of hypopharynx, unspecifiedBillable

Related codes

  • C00Malignant neoplasm of lipHeader
  • C01Malignant neoplasm of base of tongueBillable
  • C02Malignant neoplasm of other and unspecified parts of tongueHeader
  • C03Malignant neoplasm of gumHeader
  • C04Malignant neoplasm of floor of mouthHeader
  • C05Malignant neoplasm of palateHeader
  • C06Malignant neoplasm of other and unspecified parts of mouthHeader
  • C07Malignant neoplasm of parotid glandBillable
  • C08Malignant neoplasm of other and unspecified major salivary glandsHeader
  • C09Malignant neoplasm of tonsilHeader
  • C10Malignant neoplasm of oropharynxHeader
  • C11Malignant neoplasm of nasopharynxHeader
  • C12Malignant neoplasm of pyriform sinusBillable
  • C14Malignant neoplasm of other and ill-defined sites in the lip, oral cavity and pharynxHeader

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