2026 ICD-10-CM Diagnosis Code D16.4Benign neoplasm of bones of skull and face
ICD-10-CM Codes›C00–D49›D10-D36›D16
- Billable — Valid for Submission
- Not Chronic
D16.4 is a billable ICD-10-CM diagnosis code for benign neoplasm of bones of skull and face. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 11 through 13, 564 through 566. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Benign neoplasms.
Code Identity
Code Classification
Approximate SynonymsGuidance
Alternate terms and clinical phrases that map to this code.
- Benign glomus tumor
- Benign glomus tumor of mastoid
- Benign neoplasm of accessory sinus
- Benign neoplasm of articular cartilage
- Benign neoplasm of bone of skull
- Benign neoplasm of cheek
- Benign neoplasm of ethmoid bone
- Benign neoplasm of face bone
- Benign neoplasm of frontal bone
- Benign neoplasm of hard palate
- Benign neoplasm of lacrimal bone
- Benign neoplasm of maxilla
- Benign neoplasm of middle ear and mastoid
- Benign neoplasm of nasal bone
- Benign neoplasm of nasal skeleton
- Benign neoplasm of occipital bone
- Benign neoplasm of palate
- Benign neoplasm of palatine bone
- Benign neoplasm of parietal bone
- Benign neoplasm of sella turcica
- Benign neoplasm of septum of nose
- Benign neoplasm of skull and facial bones
- Benign neoplasm of sphenoid bone
- Benign neoplasm of temporal bone
- Benign neoplasm of vomer
- Benign neoplasm of zygomatic bone
- Benign odontogenic tumor of upper jaw
- Benign osteogenic neoplasm of articular cartilage of head
- Benign osteogenic neoplasm of bone of head
- Dermoid cyst of frontonasal region
- Dermoid cyst of skull
- Disorder of lacrimal bone
- External auditory canal osteoma
- Fibromyxoma of maxilla
- Mass of parietal bone of skull
- Melanotic neuroectodermal tumor of maxilla
- Nasal sinus osteoma
- Neoplasm of ethmoid bone
- Neoplasm of frontal bone
- Neoplasm of nasal bone
- Neoplasm of occipital bone
- Neoplasm of palatine bone
- Neoplasm of parietal bone
- Neoplasm of sphenoid bone
- Neoplasm of vomer
- Neoplasm of zygomatic bone
- Odontoma of upper jaw
- Osteoma
- Osteoma of face
- Osteoma of orbit
- Osteoma of skull
- Temporal odontoma
Tabular List NotesGuidance
Coding notes and annotation back-references applicable to this code.
Inclusion Terms
- Benign neoplasm of maxilla (superior)
- Benign neoplasm of orbital bone
- Keratocyst of maxilla
- Keratocystic odontogenic tumor of maxilla
Type 2 Excludes
- benign neoplasm of lower jaw bone D16.5
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.
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
Clinical InformationClinical
Osteoblastoma
a benign, painful, tumor of bone characterized by the formation of osteoid tissue, primitive bone and calcified tissue. it occurs frequently in the spine of young persons. (from dorland, 27th ed; stedman, 25th ed)Osteoma
a benign tumor composed of bone tissue or a hard tumor of bonelike structure developing on a bone (homoplastic osteoma) or on other structures (heteroplastic osteoma). (from dorland, 27th ed)Osteoma, Osteoid
a benign osteoblastic tumor with central vascularized nidus surrounded by normal reactive bone. it occurs especially in second decade of life most commonly in the femoral neck but can occur in any bone and any site within a bone.Osteomalacia
disorder caused by an interruption of the mineralization of organic bone matrix leading to bone softening, bone pain, and weakness. it is the adult form of rickets resulting from disruption of vitamin d; phosphorus; or calcium homeostasis.
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 › upper | C41.0 | C79.51 | – | D16.4 | D48.0 | D49.2 |
| bone (periosteum) › calvarium | C41.0 | C79.51 | – | D16.4 | D48.0 | D49.2 |
| bone (periosteum) › clivus | C41.0 | C79.51 | – | D16.4 | D48.0 | D49.2 |
| bone (periosteum) › cranial | C41.0 | C79.51 | – | D16.4 | D48.0 | D49.2 |
| bone (periosteum) › ethmoid (labyrinth) | C41.0 | C79.51 | – | D16.4 | D48.0 | D49.2 |
| bone (periosteum) › face | C41.0 | C79.51 | – | D16.4 | D48.0 | D49.2 |
| bone (periosteum) › frontal | C41.0 | C79.51 | – | D16.4 | D48.0 | D49.2 |
| bone (periosteum) › hyoid | C41.0 | C79.51 | – | D16.4 | D48.0 | D49.2 |
| bone (periosteum) › malar | C41.0 | C79.51 | – | D16.4 | D48.0 | D49.2 |
| bone (periosteum) › mastoid | C41.0 | C79.51 | – | D16.4 | D48.0 | D49.2 |
| bone (periosteum) › maxilla, maxillary (superior) | C41.0 | C79.51 | – | D16.4 | D48.0 | D49.2 |
| bone (periosteum) › nose, nasal | C41.0 | C79.51 | – | D16.4 | D48.0 | D49.2 |
| bone (periosteum) › occipital | C41.0 | C79.51 | – | D16.4 | D48.0 | D49.2 |
| bone (periosteum) › orbit | C41.0 | C79.51 | – | D16.4 | D48.0 | D49.2 |
| bone (periosteum) › parietal | C41.0 | C79.51 | – | D16.4 | D48.0 | D49.2 |
| bone (periosteum) › sella turcica | C41.0 | C79.51 | – | D16.4 | D48.0 | D49.2 |
| bone (periosteum) › skull | C41.0 | C79.51 | – | D16.4 | D48.0 | D49.2 |
| bone (periosteum) › sphenoid | C41.0 | C79.51 | – | D16.4 | D48.0 | D49.2 |
| bone (periosteum) › temporal | C41.0 | C79.51 | – | D16.4 | D48.0 | D49.2 |
| bone (periosteum) › turbinate | C41.0 | C79.51 | – | D16.4 | D48.0 | D49.2 |
| bone (periosteum) › vomer | C41.0 | C79.51 | – | D16.4 | D48.0 | D49.2 |
| bone (periosteum) › zygomatic | C41.0 | C79.51 | – | D16.4 | D48.0 | D49.2 |
| calvarium | C41.0 | C79.51 | – | D16.4 | D48.0 | D49.2 |
| clivus | C41.0 | C79.51 | – | D16.4 | D48.0 | D49.2 |
| ethmoid (sinus) › bone or labyrinth | C41.0 | C79.51 | – | D16.4 | D48.0 | D49.2 |
| frontal | C41.0 | C79.51 | – | D16.4 | D48.0 | D49.2 |
| frontal › bone | C41.0 | C79.51 | – | D16.4 | D48.0 | D49.2 |
| jaw › bone › upper | C41.0 | C79.51 | – | D16.4 | – | – |
| malar | C41.0 | C79.51 | – | D16.4 | D48.0 | D49.2 |
| mastoid (air cells) (antrum) (cavity) › bone or process | C41.0 | C79.51 | – | D16.4 | D48.0 | D49.2 |
| maxilla, maxillary (superior) | C41.0 | C79.51 | – | D16.4 | D48.0 | D49.2 |
| maxilla, maxillary (superior) › alveolar › ridge or process (carcinoma) | C41.0 | C79.51 | – | D16.4 | D48.0 | D49.2 |
| nose, nasal › bone | C41.0 | C79.51 | – | D16.4 | D48.0 | D49.2 |
| nose, nasal › turbinate (mucosa) › bone | C41.0 | C79.51 | – | D16.4 | D48.0 | D49.2 |
| occipital | C41.0 | C79.51 | – | D16.4 | D48.0 | D49.2 |
| occipital › bone | C41.0 | C79.51 | – | D16.4 | D48.0 | D49.2 |
| orbit › bone | C41.0 | C79.51 | – | D16.4 | D48.0 | D49.2 |
| parietal | C41.0 | C79.51 | – | D16.4 | D48.0 | D49.2 |
| parietal › bone | C41.0 | C79.51 | – | D16.4 | D48.0 | D49.2 |
| sella turcica › bone | C41.0 | C79.51 | – | D16.4 | D48.0 | D49.2 |
| sinus (accessory) › bone (any) | C41.0 | C79.51 | – | D16.4 | D48.0 | D49.2 |
| skull | C41.0 | C79.51 | – | D16.4 | D48.0 | D49.2 |
| sphenoid › bone | C41.0 | C79.51 | – | D16.4 | D48.0 | D49.2 |
| temporal | C41.0 | C79.51 | – | D16.4 | D48.0 | D49.2 |
| temporal › bone | C41.0 | C79.51 | – | D16.4 | D48.0 | D49.2 |
| turbinate (bone) | C41.0 | C79.51 | – | D16.4 | D48.0 | D49.2 |
| vomer | C41.0 | C79.51 | – | D16.4 | D48.0 | D49.2 |
Patient EducationClinical
Benign Tumors
Tumors are abnormal growths in your body. They can be either benign or malignant. Benign tumors aren't cancer. Malignant ones are. Benign tumors grow only in one place. They cannot spread or invade other parts of your body. Even so, they can be dangerous if they press on vital organs, such as your brain.
Read the full article at MedlinePlus
Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.
Convert D16.4 to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About D16.4Overview
What is the ICD-10 code for benign neoplasm of bones of skull and face?
The ICD-10-CM code for benign neoplasm of bones of skull and face is D16.4 (sometimes written as D164). It is billable on HIPAA-covered claims from October 1, 2025 through September 30, 2026.
Is D16.4 (Benign neoplasm of bone and articular cartilage) a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report benign neoplasm of bones of skull and face on HIPAA-covered claims from October 1, 2025 through September 30, 2026.
What MS-DRG does D16.4 group to?
When benign neoplasm of bones of skull and face is the principal diagnosis on an inpatient stay, it groups to MS-DRG 11, 12, 13, 564, 565, 566, with relative weights from 0.7493 to 5.4541 depending on complications. Higher weights mean higher Medicare reimbursement.
What is the ICD-9 equivalent of D16.4?
Under the General Equivalence Mappings, benign neoplasm of bones of skull and face converts to ICD-9-CM 213.0 (ben neo skull/face bone). The mapping is a direct match.
