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. C13- Malignant neoplasm of hypopharynx
    5. ›
  5. 2021 ICD-10-CM Diagnosis Code C13.1

2021 ICD-10-CM Diagnosis Code C13.1

Malignant neoplasm of aryepiglottic fold, hypopharyngeal aspect

    2016 2017 2018 2019 2020 2021 Billable/Specific Code
  • C13.1 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
  • Short description: Malig neoplasm of aryepiglottic fold, hypopharyngeal aspect
  • The 2021 edition of ICD-10-CM C13.1 became effective on October 1, 2020.
  • This is the American ICD-10-CM version of C13.1 - other international versions of ICD-10 C13.1 may differ.
Applicable To
  • Malignant neoplasm of aryepiglottic fold, marginal zone
  • Malignant neoplasm of aryepiglottic fold NOS
  • Malignant neoplasm of interarytenoid fold, marginal zone
  • Malignant neoplasm of interarytenoid fold NOS
Type 2 Excludes
Type 2 Excludes Help
A type 2 excludes note represents "not included here". A type 2 excludes note indicates that the condition excluded is not part of the condition it is excluded from but a patient may have both conditions at the same time. When a type 2 excludes note appears under a code it is acceptable to use both the code (C13.1) and the excluded code together.
  • malignant neoplasm of aryepiglottic fold or interarytenoid fold, laryngeal aspect (
    ICD-10-CM Diagnosis Code C32.1

    Malignant neoplasm of supraglottis

      2016 2017 2018 2019 2020 2021 Billable/Specific Code
    Applicable To
    • Malignant neoplasm of aryepiglottic fold or interarytenoid fold, laryngeal aspect
    • Malignant neoplasm of epiglottis (suprahyoid portion) NOS
    • Malignant neoplasm of extrinsic larynx
    • Malignant neoplasm of false vocal cord
    • Malignant neoplasm of posterior (laryngeal) surface of epiglottis
    • Malignant neoplasm of ventricular bands
    Type 2 Excludes
    • malignant neoplasm of anterior surface of epiglottis (C10.1)
    • malignant neoplasm of aryepiglottic fold or interarytenoid fold, hypopharyngeal aspect (C13.1)
    • malignant neoplasm of aryepiglottic fold or interarytenoid fold, marginal zone (C13.1)
    • malignant neoplasm of aryepiglottic fold or interarytenoid fold NOS (C13.1)
    C32.1
    )
The following code(s) above C13.1 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 C13.1:
  • 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
  • C13
    ICD-10-CM Diagnosis Code C13

    Malignant neoplasm of hypopharynx

      2016 2017 2018 2019 2020 2021 Non-Billable/Non-Specific Code
    Type 2 Excludes
    • malignant neoplasm of pyriform sinus (C12)
    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 hypopharynx
Approximate Synonyms
  • Cancer of the hypopharynx, aryepiglottic fold
  • Primary malignant neoplasm of hypopharyngeal aspect of aryepiglottic fold
  • Primary squamous cell carcinoma of aryepiglottic fold
  • Squamous cell carcinoma, aryepiglottic fold
ICD-10-CM C13.1 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 C13.1 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
Code annotations containing back-references to C13.1:
  • Type 2 Excludes: C32.1
    , C32.1
    , C32.1
    ICD-10-CM Diagnosis Code C32.1

    Malignant neoplasm of supraglottis

      2016 2017 2018 2019 2020 2021 Billable/Specific Code
    Applicable To
    • Malignant neoplasm of aryepiglottic fold or interarytenoid fold, laryngeal aspect
    • Malignant neoplasm of epiglottis (suprahyoid portion) NOS
    • Malignant neoplasm of extrinsic larynx
    • Malignant neoplasm of false vocal cord
    • Malignant neoplasm of posterior (laryngeal) surface of epiglottis
    • Malignant neoplasm of ventricular bands
    Type 2 Excludes
    • malignant neoplasm of anterior surface of epiglottis (C10.1)
    • malignant neoplasm of aryepiglottic fold or interarytenoid fold, hypopharyngeal aspect (C13.1)
    • malignant neoplasm of aryepiglottic fold or interarytenoid fold, marginal zone (C13.1)
    • malignant neoplasm of aryepiglottic fold or interarytenoid fold NOS (C13.1)
    ICD-10-CM Diagnosis Code C32.1

    Malignant neoplasm of supraglottis

      2016 2017 2018 2019 2020 2021 Billable/Specific Code
    Applicable To
    • Malignant neoplasm of aryepiglottic fold or interarytenoid fold, laryngeal aspect
    • Malignant neoplasm of epiglottis (suprahyoid portion) NOS
    • Malignant neoplasm of extrinsic larynx
    • Malignant neoplasm of false vocal cord
    • Malignant neoplasm of posterior (laryngeal) surface of epiglottis
    • Malignant neoplasm of ventricular bands
    Type 2 Excludes
    • malignant neoplasm of anterior surface of epiglottis (C10.1)
    • malignant neoplasm of aryepiglottic fold or interarytenoid fold, hypopharyngeal aspect (C13.1)
    • malignant neoplasm of aryepiglottic fold or interarytenoid fold, marginal zone (C13.1)
    • malignant neoplasm of aryepiglottic fold or interarytenoid fold NOS (C13.1)
    ICD-10-CM Diagnosis Code C32.1

    Malignant neoplasm of supraglottis

      2016 2017 2018 2019 2020 2021 Billable/Specific Code
    Applicable To
    • Malignant neoplasm of aryepiglottic fold or interarytenoid fold, laryngeal aspect
    • Malignant neoplasm of epiglottis (suprahyoid portion) NOS
    • Malignant neoplasm of extrinsic larynx
    • Malignant neoplasm of false vocal cord
    • Malignant neoplasm of posterior (laryngeal) surface of epiglottis
    • Malignant neoplasm of ventricular bands
    Type 2 Excludes
    • malignant neoplasm of anterior surface of epiglottis (C10.1)
    • malignant neoplasm of aryepiglottic fold or interarytenoid fold, hypopharyngeal aspect (C13.1)
    • malignant neoplasm of aryepiglottic fold or interarytenoid fold, marginal zone (C13.1)
    • malignant neoplasm of aryepiglottic fold or interarytenoid fold NOS (C13.1)
ICD-10-CM Codes Adjacent To C13.1
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
C14.0 Malignant neoplasm of pharynx, unspecified
C14.2 Malignant neoplasm of Waldeyer's ring
C14.8 Malignant neoplasm of overlapping sites of lip, oral cavity and pharynx
C15 Malignant neoplasm of esophagus
C15.3 Malignant neoplasm of upper third of esophagus
C15.4 Malignant neoplasm of middle third of esophagus

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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