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Federal IDR by specialty
Radiology: out-of-network denials and recovery
CT, MRI, and ultrasound interpretations read by hospital-based radiologists who are frequently out of network even at an in-network facility, and protected under the No Surprises Act.
10 disputed radiology codes
CT scan of the head, without contrast
CPT 70450 · head
CT scan of the head, with contrast
CPT 70460 · head
MRI of the brain, without contrast
CPT 70551 · brain
MRI of the cervical spine, without contrast
CPT 72141 · cervical spine
MRI of the lumbar spine, without contrast
CPT 72148 · lumbar spine
CT scan of the chest, with contrast
CPT 71260 · chest
CT scan of the abdomen and pelvis, with contrast
CPT 74177 · abdomen and pelvis
CT scan of the abdomen and pelvis, without contrast
CPT 74176 · abdomen and pelvis
MRI of a lower-extremity joint, without contrast
CPT 73721 · lower extremity
Complete ultrasound of the abdomen
CPT 76700 · abdomen
Radiology denials by state
Medically & clinically reviewed by Dr. John M. Abrahams, MD
Board-certified neurosurgeon and founder of Sydra · Last reviewed September 2026 · About the author
Sources
Figures reflect the published federal record across all disputes, not a prediction about any individual claim. This is general information, not legal or financial advice.