Code 92929 is an add-on code so no modifier is needed for the second procedure. Note that the codes indicate that they are for an artery or branch. A second code is not reported for multiple sites of the same artery or branch.
1 C1 and C2 (the first two cervical nerves) control the head. 2  C3 and C4 help control the diaphragm (the sheet of muscle that stretches to the bottom of the rib cage and plays an important role in breathing and respiration).atch Cervical Radiculopathy Video. In addition to the seven cervical vertebrae, cervical anatomy features eight cervical nerves (C1-C8) that branch off of the spinal cord and control different types of bodily and sensory activities. Each cervical nerve is named based on the lower cervical vertebra that it runs between.
Cervical nerves are spinal nerves from the first seven vertebrae of the spinal cord. These seven vertebrae, called C1 through C7, begin at the base of the skull and make up the cervical spine in humans and most other mammals. Cervical nerves stem from the first seven vertebrae, C1-C7, of the spinal cord in your neck. 2  Cervical nerves can affect motor function in both the upper and lower body.