ICD-10 Code D16.4 – Benign neoplasm of bones of skull and face (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code D16.4 – Benign neoplasm of bones of skull and face
What it is
D16.4 identifies a noncancerous tumor arising in the bones of the skull or face. Use it when documentation specifies a benign bone neoplasm in these craniofacial sites.
Clinical signs
Clinical features vary; refer to documentation. These lesions may be noted as a localized bony mass, facial asymmetry, swelling, or incidental imaging finding, with pathology confirming benign behavior.
When to use this code
Use D16.4 when the record clearly states a benign neoplasm involving skull or facial bones. It may apply after imaging, biopsy, or surgical pathology documents the lesion as benign and located in this anatomic area.
If the provider describes a specific benign bone tumor without naming the site, check documentation before coding. Confirm that the lesion is primary to skull or face, not a metastasis or another bone disorder.
Do not use for
Do not use this code for malignant bone tumors, metastatic disease, or nonspecific skull or facial masses without a documented benign bone neoplasm. Check documentation.
Coding tip
Code the documented anatomic site exactly; if the chart says skull or facial bone benign neoplasm, D16.4 is the appropriate choice.