C13.1 — Malignant neoplasm of aryepiglottic fold, hypopharyngeal aspect
C13.1 is a billable, specific ICD-10-CM code for malignant neoplasm of aryepiglottic fold, hypopharyngeal aspect. It is valid for submission on a claim.
Excludes2 — not included here, but may coexist
The excluded condition is not part of this code, but a patient can have both. You may code both.
- malignant neoplasm of aryepiglottic fold or interarytenoid fold, laryngeal aspect (C32.1)
Inclusion terms
Alternative wordings a physician may use in the chart for this same code.
- 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
Risk adjustment
C13.1 risk-adjusts. Under the CMS-HCC V28 model it maps to this category:
- HCC 21 Lymphoma and Other Cancers0.671 RAF
Coefficient shown for the Community Non-dual Aged segment. A higher HCC in the same hierarchy will suppress this one, so capturing it does not always add score.
Medicare coverage
C13.1 is named in 60 Medicare coverage policies — 60 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.
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Related codes at this level
Codes that share C13. If C13.1 is not quite right, the correct code is usually one of these.
Questions about C13.1
- Is C13.1 a billable ICD-10-CM code?
- Yes. C13.1 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does C13.1 sit in the tabular list?
- Neoplasms (C00-D49), in the block Malignant neoplasms of lip, oral cavity and pharynx (C00-C14).