B9070ZZ
Plain Radiography Submandibular Gland, Right to None with None, High Osmolar Approach
Procedural Specifications
| Clinical Axis | Detail Definition |
|---|---|
| Section | B Imaging |
| Body System | 9 Ear, Nose, Mouth and Throat |
| Operation | 0 Plain Radiography |
| Body Part | 7 Submandibular Gland, Right |
| Approach | 0 High Osmolar |
| Device | Z None |
| Qualifier | Z None |
Operation Definition
Planar display of an image developed from the capture of external ionizing radiation on photographic or photoconductive plate
Procedure Overview
Plain radiography of the ear, nose, mouth, and throat captures a still image of these structures using a brief burst of external x-rays absorbed differently by bone, air, and soft tissue. The resulting image is recorded on a photographic or digital plate, giving clinicians a quick, low-cost look at bony anatomy and radiopaque material in these regions. It has largely been supplemented by CT for detailed evaluation but remains useful for rapid screening.
Common reasons for ordering this imaging include suspected facial or nasal bone fracture, evaluation of foreign bodies lodged in the throat or nasal passages, assessment of sinus opacification, and postoperative checks of hardware placement. It is fast, involves a low radiation dose, and can often be performed without special preparation, making it a practical first step before more advanced imaging is pursued.
Anatomy & Axis Detail
Submandibular Gland, Right
Plain radiography of the right submandibular gland evaluates the salivary gland situated beneath the floor of the mouth near the right side of the jaw, and is most commonly ordered to detect a sialolith within the gland or its duct, since submandibular stones are more frequent than those in other salivary glands due to the gland's more viscous secretions and the upward, longer course of its duct. Detecting a stone on plain film can explain recurrent right-sided submandibular swelling that worsens with eating, though the technique has limited ability to assess soft-tissue detail or differentiate a stone from surrounding calcified structures like lymph nodes. When findings are equivocal, sialography or cross-sectional imaging is used to further define the gland and its ductal anatomy. This right-sided study is chosen when symptoms are clearly localized rather than bilateral.
Contrast: High Osmolar
High Osmolar identifies imaging studies performed using a high-osmolar iodinated contrast agent, an older class of media with osmolality well above that of blood plasma. These agents carry a comparatively higher risk of adverse reactions and are used less often today than Low Osmolar agents, which produce similar radiographic enhancement with better patient tolerance. The value simply records which contrast class, if any, was administered for the study.
Coding & Documentation
This code is assigned when the report documents a static x-ray image of a specific site within the ear, nose, mouth, or throat body system, and the coder must match the anatomical detail in the order and findings to the correct body part value, since these structures are grouped narrowly. Documentation should specify laterality and the exact structure imaged, such as mastoid, nasal bone, or soft tissue neck, rather than a vague reference to 'facial x-ray.' A frequent error is defaulting to a generic body part when the report actually specifies a more precise site with its own designated value.
Commonly Confused With
Plain radiography is often confused with fluoroscopy of the same region, which produces continuous, real-time images rather than a single static exposure and is typically used for procedures like swallow studies. It also differs from CT, which reconstructs cross-sectional images from many x-ray exposures rather than capturing one planar image. Checking whether the study was a single static image, a live continuous sequence, or a computer-reconstructed multiplanar series determines the correct root operation.