BN3 Magnetic Resonance Imaging (MRI) - Skull and Facial Bones ICD-10-PCS
The BN3 code range contains 3 ICD-10-PCS codes for Magnetic Resonance Imaging (MRI) procedures on the skull and facial bones. 2 of the codes are billable and valid for inpatient claim submission in fiscal year 2026.
Root Operation Definition
Magnetic Resonance Imaging (MRI): Computer reformatted digital display of multiplanar images developed from the capture of radio frequency signals emitted by nuclei in a body site excited within a magnetic field.
Codes in the BN3 Range 3 codes · 2 billable
About the BN3 Code Range
The ICD-10-PCS root operation BN3 - Magnetic Resonance Imaging (MRI) refers to a diagnostic procedure that uses magnetic resonance technology to create detailed images of body structures. This operation falls under the Imaging section and specifically targets skeletal areas like the skull and facial bones.
The use of MRI codes in the ICD-10-PCS system allows precise coding for imaging procedures involving complex anatomical sites. For example, code BN3 represents MRI of the Skull and Facial Bones. More detailed coding includes BN39ZZZ, which specifies MRI of the Bilateral Temporomandibular Joints, important for diagnosing jaw disorders. The code BN39YZZ adds the use of Other Contrast to enhance image clarity during the MRI of these joints. Accurately capturing these nuances ensures clear documentation of MRI procedures which assist in diagnosis and treatment planning.
Questions About This Page
How many billable codes are in the BN3 range?
Of the 3 codes in this range, 2 are billable and valid for inpatient claim submission from October 1, 2025 through September 30, 2026. Table header codes group them but cannot be reported on claims.
What does the BN3 range classify?
The range classifies Magnetic Resonance Imaging (MRI) procedures, computer reformatted digital display of multiplanar images developed from the capture of radio frequency signals emitted by nuclei in a body site excited within a magnetic field, performed on the skull and facial bones. Each code adds the body part, approach, device, and qualifier in characters four through seven, and links to its own reference page.
Related References
Source: CMS FY 2026 ICD-10-PCS order file and code tables, effective October 1, 2025 through September 30, 2026.
