C10.4 — Malignant neoplasm of branchial cleft
C10.4 is a billable, specific ICD-10-CM code for malignant neoplasm of branchial cleft. It is valid for submission on a claim.
Inclusion terms
Alternative wordings a physician may use in the chart for this same code.
- Malignant neoplasm of branchial cyst [site of neoplasm]
Risk adjustment
C10.4 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
C10.4 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.
- A52450Billing and Coding: Paclitaxel (e.g., Taxol®/Abraxane ™)
- A52479Oral Anticancer Drugs - Policy Article
- A52479Oral Anticancer Drugs - Policy Article
- A52479Oral Anticancer Drugs - Policy Article
How C10.4 is indexed
Coders do not find codes by browsing the tabular list — they look them up in the alphabetic index, under the word the physician wrote. These are the index entries that lead here, so you can see which chart wordings map to C10.4.
- Carcinoma›branchial or branchiogenic
Related codes at this level
Codes that share C10. If C10.4 is not quite right, the correct code is usually one of these.
- C10.0Malignant neoplasm of vallecula
- C10.1Malignant neoplasm of anterior surface of epiglottis
- C10.2Malignant neoplasm of lateral wall of oropharynx
- C10.3Malignant neoplasm of posterior wall of oropharynx
- C10.8Malignant neoplasm of overlapping sites of oropharynx
- C10.9Malignant neoplasm of oropharynx, unspecified
Questions about C10.4
- Is C10.4 a billable ICD-10-CM code?
- Yes. C10.4 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does C10.4 sit in the tabular list?
- Neoplasms (C00-D49), in the block Malignant neoplasms of lip, oral cavity and pharynx (C00-C14).