2027 ICD-10-CM Diagnosis Code C07Malignant neoplasm of parotid gland
ICD-10-CM Codes›C00–D49›C00-C14›C07
- Billable — Valid for Submission
- Risk Adjusts — HCC 21
- Chronic Condition
C07 is a billable ICD-10-CM diagnosis code for malignant neoplasm of parotid gland. It is valid on HIPAA claims for fiscal year 2027 (October 1, 2026 through September 30, 2027) and groups to MS-DRG 11 through 13, 146 through 148. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Head and neck cancers - salivary gland.
For Medicare Advantage risk adjustment, C07 maps to CMS-HCC Category 21 (Lymphoma and Other Cancers) under the V28 model, adding a risk factor of about 0.671 for a community, non-dual, aged beneficiary in payment year 2027.
Code Identity
Code Classification
Medicare Risk Adjustment (HCC)Billing
C07 maps to a payment category in the CMS-HCC model used to risk-adjust Medicare Advantage payments. Weights are the published community factors for payment year 2027.
Source: CMS Payment Year 2027 risk adjustment mappings and model software. Weights are relative factors, not dollar amounts; a beneficiary's total RAF also includes demographics and interactions. Browse all CMS-HCC categories.
Approximate SynonymsGuidance
Alternate terms and clinical phrases that map to this code.
- Adenoid cystic carcinoma of parotid gland
- Adenoid cystic carcinoma of salivary gland
- Carcinoma ex pleomorphic adenoma of parotid gland
- Carcinoma of parotid gland
- Malignant neoplasm of parotid gland
- Mucoepidermoid carcinoma of parotid gland
- Mucoepidermoid carcinoma of salivary gland
- Primary acinar cell carcinoma of parotid gland
- Primary adenocarcinoma of parotid gland
- Primary adenoid cystic carcinoma of parotid gland
- Primary adenoid cystic carcinoma of salivary gland
- Primary carcinoma ex pleomorphic adenoma of parotid gland
- Primary carcinoma ex pleomorphic adenoma of salivary gland
- Primary carcinoma of parotid gland
- Primary malignant neoplasm of parotid gland
- Primary mucoepidermoid carcinoma of parotid gland
- Primary mucoepidermoid carcinoma of salivary gland
- Primary squamous cell carcinoma of parotid gland
Instructional NotesGuidance
Instructions from the official ICD-10-CM Tabular List that apply to C07: its own notes plus those printed at Chapter 2. A note printed at a category, block or chapter applies to every code under it.
Use Additional Code
Add a second code, after this one, to fully describe the condition.
- code to identify:
- alcohol abuse and dependence (F10.-)
- 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)
Notes
General instructions on how these codes are used.
- 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).
Source: CMS ICD-10-CM Tabular List. How to read instructional notes.
Referenced in Other NotesGuidance
Instructional notes printed at other codes that name C07, its category, or a range that includes it.
Applicable To 3
These notes mention C07.
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
Clinical InformationClinical
Malignant Parotid Gland Neoplasm
a primary or metastatic malignant neoplasm involving the parotid gland. representative examples include carcinoma, malignant mixed tumor, and non-hodgkin lymphoma.
Table of NeoplasmsClinical
Anatomical sites in the Table of Neoplasms that reference this code family.
Patient EducationClinical
Salivary Gland Cancer
Your salivary glands make saliva - sometimes called spit - and empty it into your mouth through openings called ducts. Saliva makes your food moist, which helps you chew and swallow. It helps you digest your food. It also cleans your mouth and contains antibodies that can kill germs.
Read the full article at MedlinePlus
Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.
Convert C07 to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About C07Overview
What is the ICD-10 code for malignant neoplasm of parotid gland?
The ICD-10-CM code for malignant neoplasm of parotid gland is C07. It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
Is C07 (Malignant neoplasm of parotid gland) a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report malignant neoplasm of parotid gland on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
What MS-DRG does C07 group to?
When malignant neoplasm of parotid gland is the principal diagnosis on an inpatient stay, it groups to MS-DRG 12, 11, 146, 13, 147, 148, with relative weights from 0.8005 to 5.6129 depending on complications. Higher weights mean higher Medicare reimbursement.
Does C07 need an additional code?
When the condition applies, yes. The Use Additional Code note reads: code to identify: alcohol abuse and dependence (F10.-); 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); and 2 more listed in the Instructional Notes section. The additional code is reported after C07.
What is the ICD-9 equivalent of C07?
Under the General Equivalence Mappings, malignant neoplasm of parotid gland converts to ICD-9-CM 142.0 (malig neo parotid). The mapping is a direct match.
What HCC is C07?
C07 (malignant neoplasm of parotid gland) maps to CMS-HCC Category 21 (Lymphoma and Other Cancers), commonly written as HCC 21, in the CMS-HCC V28 model used for Medicare Advantage risk adjustment in payment year 2027. It mapped to HCC 11 under the retired V24 model. It also maps in the PACE (CMS-HCC V22), ESRD (V21), and ESRD (V24) models. In the Part D prescription drug model it maps to RxHCC 22.
Does C07 risk-adjust for Medicare Advantage payment?
Yes. When documented and reported on a Medicare Advantage encounter, C07 adds a risk adjustment factor of about 0.671 to the beneficiary's RAF score for a community, non-dual, aged enrollee (published V28 weights range from 0.493 to 0.739 depending on the payment segment). A more severe related category (HCC 17, HCC 18, HCC 19, and HCC 20) supersedes it when both are reported. See the full factor table on the HCC 21 category page.
