2021

  1. ICD-10-CM Codes
    2. ›
  2. C00-D49 Neoplasms
    3. ›
  3. C00-C14 Malignant neoplasms of lip, oral cavity and pharynx
    4. ›
  4. C11- Malignant neoplasm of nasopharynx
    5. ›
  5. 2021 ICD-10-CM Diagnosis Code C11.3

2021 ICD-10-CM Diagnosis Code C11.3

Malignant neoplasm of anterior wall of nasopharynx

    2016 2017 2018 2019 2020 2021 Billable/Specific Code
  • C11.3 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 C11.3 became effective on October 1, 2020.
  • This is the American ICD-10-CM version of C11.3 - other international versions of ICD-10 C11.3 may differ.
Applicable To
  • Malignant neoplasm of floor of nasopharynx
  • Malignant neoplasm of nasopharyngeal (anterior) (posterior) surface of soft palate
  • Malignant neoplasm of posterior margin of nasal choana
  • Malignant neoplasm of posterior margin of nasal septum
The following code(s) above C11.3 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 C11.3:
  • C00-D49
    2021 ICD-10-CM Range C00-D49

    Neoplasms

    Note
    • 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 (C25.9).
    Neoplasms
  • C11
    ICD-10-CM Diagnosis Code C11

    Malignant neoplasm of nasopharynx

      2016 2017 2018 2019 2020 2021 Non-Billable/Non-Specific Code
    Use Additional
    • 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)
    Malignant neoplasm of nasopharynx
Approximate Synonyms
  • Cancer of the nasopharynx, anterior wall
  • Primary malignant neoplasm of anterior wall of nasopharynx
  • Primary squamous cell carcinoma of anterior wall of nasopharynx
  • Primary undifferentiated carcinoma of anterior wall of nasopharynx
  • Squamous cell carcinoma, anterior wall of nasopharynx
  • Undifferentiated carcinoma, anterior wall of nasophary
ICD-10-CM C11.3 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 C11.3 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
Code annotations containing back-references to C11.3:
  • Type 1 Excludes: C30.0
    ICD-10-CM Diagnosis Code C30.0

    Malignant neoplasm of nasal cavity

      2016 2017 2018 2019 2020 2021 Billable/Specific Code
    Applicable To
    • Malignant neoplasm of cartilage of nose
    • Malignant neoplasm of nasal concha
    • Malignant neoplasm of internal nose
    • Malignant neoplasm of septum of nose
    • Malignant neoplasm of vestibule of nose
    Type 1 Excludes
    • malignant neoplasm of nasal bone (C41.0)
    • malignant neoplasm of nose NOS (C76.0)
    • malignant neoplasm of olfactory bulb (C72.2-)
    • malignant neoplasm of posterior margin of nasal septum and choana (C11.3)
    • malignant melanoma of skin of nose (C43.31)
    • malignant neoplasm of turbinates (C41.0)
    • other and unspecified malignant neoplasm of skin of nose C44.301, C44.311, C44.321, C44.391)
  • Type 2 Excludes: C05.1
    ICD-10-CM Diagnosis Code C05.1

    Malignant neoplasm of soft palate

      2016 2017 2018 2019 2020 2021 Billable/Specific Code
    Type 2 Excludes
    • malignant neoplasm of nasopharyngeal surface of soft palate (C11.3)
ICD-10-CM Codes Adjacent To C11.3
C10.1 Malignant neoplasm of anterior surface of epiglottis
C10.2 Malignant neoplasm of lateral wall of oropharynx
C10.3 Malignant neoplasm of posterior wall of oropharynx
C10.4 Malignant neoplasm of branchial cleft
C10.8 Malignant neoplasm of overlapping sites of oropharynx
C10.9 Malignant neoplasm of oropharynx, unspecified
C11 Malignant neoplasm of nasopharynx
C11.0 Malignant neoplasm of superior wall of nasopharynx
C11.1 Malignant neoplasm of posterior wall of nasopharynx
C11.2 Malignant neoplasm of lateral wall of nasopharynx
C11.3 Malignant neoplasm of anterior wall of nasopharynx
C11.8 Malignant neoplasm of overlapping sites of nasopharynx
C11.9 Malignant neoplasm of nasopharynx, unspecified
C12 Malignant neoplasm of pyriform sinus
C13 Malignant neoplasm of hypopharynx
C13.0 Malignant neoplasm of postcricoid region
C13.1 Malignant neoplasm of aryepiglottic fold, hypopharyngeal aspect
C13.2 Malignant neoplasm of posterior wall of hypopharynx
C13.8 Malignant neoplasm of overlapping sites of hypopharynx
C13.9 Malignant neoplasm of hypopharynx, unspecified
C14 Malignant neoplasm of other and ill-defined sites in the lip, oral cavity and pharynx

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.

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