2026 ICD-10-CM Diagnosis Code C41.1Malignant neoplasm of mandible
ICD-10-CM Codes›C00–D49›C40-C41›C41
- Billable — Valid for Submission
- Chronic Condition
C41.1 is a billable ICD-10-CM diagnosis code for malignant neoplasm of mandible. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 542 through 544. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Bone cancer.
Code Identity
Code Classification
Approximate SynonymsGuidance
Alternate terms and clinical phrases that map to this code.
- Carcinoma of mandible
- Chondrosarcoma of mandible
- Malignant ameloblastoma of mandible
- Malignant dedifferentiated adamantinoma of bone
- Malignant neoplasm of alveolus of mandible
- Malignant neoplasm of mandible
- Malignant odontogenic neoplasm of lower jaw
- Odontogenic ghost cell carcinoma
- Osteosarcoma of bone of head
- Periosteal osteosarcoma
- Periosteal osteosarcoma of jaw
- Primary ameloblastic carcinoma
- Primary chondrosarcoma of mandible
- Primary malignant ameloblastoma of mandible
- Primary malignant neoplasm of jaw
- Primary malignant neoplasm of mandible
- Primary malignant odontogenic neoplasm of lower jaw
- Primary odontogenic ghost cell carcinoma
- Primary osteosarcoma of articular cartilage of jaw
- Primary osteosarcoma of bone of head
- Primary osteosarcoma of bone of jaw
- Primary osteosarcoma of mandible
- Primary periosteal osteosarcoma of jaw
- Sarcoma of mandible
Tabular List NotesGuidance
Coding notes and annotation back-references applicable to this code.
Inclusion Terms
- Malignant neoplasm of inferior maxilla
- Malignant neoplasm of lower jaw bone
Type 2 Excludes
- carcinoma, any type except intraosseous or odontogenic of:
- jaw NOS C03.9
- lower C03.1
- malignant neoplasm of upper jaw bone C41.0
These terms are the conditions for which that code is to be used. The terms may be synonyms of the code title, or, in the case of "other specified" codes, the terms are a list of the various conditions assigned to that code. The inclusion terms are not necessarily exhaustive. Additional terms found only in the Alphabetic Index may also be assigned to a code.
A type 2 excludes note represents "Not included here". An excludes2 note indicates that the condition excluded is not part of the condition represented by the code, but a patient may have both conditions at the same time. When an Excludes2 note appears under a code, it is acceptable to use both the code and the excluded code together, when appropriate.
Index to Diseases and InjuriesGuidance
Alphabetical index entries that point to this code.
- Adamantinoma - See Also: Cyst, calcifying odontogenic;
- malignant - C41.1
- jaw (bone) (lower) - C41.1
- Ameloblastoma - See Also: Cyst, calcifying odontogenic;
- malignant - C41.1
- jaw (bone) (lower) - C41.1
- Carcinoma (malignant) - See Also: Neoplasm, by site, malignant;
- ameloblastic - C41.1
- intraosseous - C41.1
- odontogenic - C41.1
- Fibrosarcoma - See Also: Neoplasm, connective tissue, malignant;
- ameloblastic - C41.1
- odontogenic - C41.1
- Odontosarcoma, ameloblastic - C41.1
- Sarcoma (of) - See Also: Neoplasm, connective tissue, malignant;
- ameloblastic - C41.1
- odontogenic - C41.1
- Tumor - See Also: Neoplasm, unspecified behavior, by site;
- odontogenic (adenomatoid) (benign) (calcifying epithelial) (keratocystic) (squamous) - See: Cyst, calcifying odontogenic;
- malignant - C41.1
External Cause of Injuries IndexGuidance
References for this code in the External Cause of Injuries Index.
- Adamantinoma
- malignant
- Adamantinoma
- malignant
- jaw (bone) (lower)
- Ameloblastoma
- malignant
- Ameloblastoma
- malignant
- jaw (bone) (lower)
- Carcinoma(malignant)
- ameloblastic
- Carcinoma(malignant)
- intraosseous
- Carcinoma(malignant)
- odontogenic
- Fibrosarcoma
- ameloblastic
- Fibrosarcoma
- odontogenic
- Odontosarcoma, ameloblastic
- Sarcoma(of)
- ameloblastic
- Sarcoma(of)
- odontogenic
- Tumor
- odontogenic (adenomatoid) (benign) (calcifying epithelial) (keratocystic) (squamous)
- malignant
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
Clinical InformationClinical
Cementoma
an odontogenic fibroma in which cells have developed into cementoblasts and which consists largely of cementum.Mandible
the largest and strongest bone of the face constituting the lower jaw. it supports the lower teeth.
Table of NeoplasmsClinical
Anatomical sites in the Table of Neoplasms that reference this code family.
| Site | Malig. Primary | Malig. Secondary | Ca in situ | Benign | Uncertain | Unspec. |
|---|---|---|---|---|---|---|
| alveolar › ridge or process | C41.1 | C79.51 | – | D16.5 | D48.0 | D49.2 |
| alveolar › ridge or process › lower | C41.1 | C79.51 | – | D16.5 | D48.0 | D49.2 |
| bone (periosteum) › jaw (lower) | C41.1 | C79.51 | – | D16.5 | D48.0 | D49.2 |
| bone (periosteum) › mandible | C41.1 | C79.51 | – | D16.5 | D48.0 | D49.2 |
| bone (periosteum) › maxilla, maxillary (superior) › inferior | C41.1 | C79.51 | – | D16.5 | D48.0 | D49.2 |
| jaw › bone | C41.1 | C79.51 | – | D16.5 | D48.0 | D49.2 |
| jaw › bone › lower | C41.1 | C79.51 | – | D16.5 | – | – |
| joint NEC [See Also: Neoplasm, bone] › temporomandibular | C41.1 | C79.51 | – | D16.5 | D48.0 | D49.2 |
| mandible | C41.1 | C79.51 | – | D16.5 | D48.0 | D49.2 |
| mandible › alveolar › ridge or process | C41.1 | C79.51 | – | D16.5 | D48.0 | D49.2 |
Patient EducationClinical
Bone Cancer
Cancer that starts in a bone is uncommon. Cancer that has spread to the bone from another part of the body is more common.
Read the full article at MedlinePlus
Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.
Convert C41.1 to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About C41.1Overview
Is C41.1 a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report malignant neoplasm of mandible on HIPAA-covered claims from October 1, 2025 through September 30, 2026.
What MS-DRG does C41.1 group to?
When malignant neoplasm of mandible is the principal diagnosis on an inpatient stay, it groups to MS-DRG 542, 543, 544, with relative weights from 0.7546 to 1.7665 depending on complications. Higher weights mean higher Medicare reimbursement.
What is the ICD-9 equivalent of C41.1?
Under the General Equivalence Mappings, malignant neoplasm of mandible converts to ICD-9-CM 170.1 (malignant neo mandible). The mapping is a direct match.
Footnotes
[1] Chronic - a chronic condition code indicates a condition lasting 12 months or longer and its effect on the patient based on one or both of the following criteria:
- The condition results in the need for ongoing intervention with medical products,treatment, services, and special equipment
- The condition places limitations on self-care, independent living, and social interactions.
