C10.4

Malignant neoplasm of branchial cleft

Billable / specificHCC V28 21

C10.4 is a billable, specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes in FY2027.

Inclusion terms

Applicable to

  • Malignant neoplasm of branchial cyst [site of neoplasm]

Includes (from C10)

  • 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 tonsil (C09.-) (from C10)

Use additional code

Add a code to identify the following, if applicable.

  • code to identify: (from C10)
  • alcohol abuse and dependence (F10.-) (from C10)
  • exposure to environmental tobacco smoke (Z77.22) (from C10)
  • exposure to tobacco smoke in the perinatal period (P96.81) (from C10)
  • history of tobacco dependence (Z87.891) (from C10)
  • occupational exposure to environmental tobacco smoke (Z57.31) (from C10)
  • tobacco dependence (F17.-) (from C10)
  • tobacco use (Z72.0) (from C10)

Also known as

  • Malignant neoplasm of branchial cyst [site of neoplasm]
  • Carcinoma, branchial or branchiogenic

Parent code

  • C10Malignant neoplasm of oropharynxHeader

Related codes

  • C10.0Malignant neoplasm of valleculaBillable
  • C10.1Malignant neoplasm of anterior surface of epiglottisBillable
  • C10.2Malignant neoplasm of lateral wall of oropharynxBillable
  • C10.3Malignant neoplasm of posterior wall of oropharynxBillable
  • C10.8Malignant neoplasm of overlapping sites of oropharynxBillable
  • C10.9Malignant neoplasm of oropharynx, unspecifiedBillable

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