B91 Fluoroscopy - Ear, Nose, Mouth and Throat ICD-10-PCS
The B91 code range contains 5 ICD-10-PCS codes for Fluoroscopy procedures on the ear, nose, mouth and throat. 4 of the codes are billable and valid for inpatient claim submission in fiscal year 2026.
Root Operation Definition
Fluoroscopy: Single plane or bi-plane real time display of an image developed from the capture of external ionizing radiation on fluorescent screen. The image may also be stored by either digital or analog means.
Codes in the B91 Range 5 codes · 4 billable
About the B91 Code Range
The ICD-10-PCS root operation Fluoroscopy (B91) refers to the use of real-time X-ray imaging to visualize body structures in motion, specifically within the Ear, Nose, Mouth and Throat area in this classification. It enables clinicians to observe dynamic processes without invasive procedures.
This imaging technique is particularly useful for assessing functions and mobility of anatomical parts. The provided codes demonstrate fluoroscopy applied to the Pharynx and Epiglottis and Larynx, with options involving the use of Other Contrast agents (codes B91GYZZ, B91JYZZ) or without contrast (codes B91GZZZ, B91JZZZ). Such specificity allows for accurate documentation of the imaging approach reflecting the clinical evaluation of these throat structures. These fluoroscopy codes facilitate detailed reporting in the ICD-10-PCS system for diagnostic imaging of the head and neck region.
Questions About This Page
How many billable codes are in the B91 range?
Of the 5 codes in this range, 4 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 B91 range classify?
The range classifies Fluoroscopy procedures, single plane or bi-plane real time display of an image developed from the capture of external ionizing radiation on fluorescent screen. The image may also be stored by either digital or analog means, performed on the ear, nose, mouth and throat. 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.
