Oth traum nondisp spondylolysis of 2nd cervcal vert, 7thG

This code signifies a follow-up encounter for a patient experiencing delayed healing of a nondisplaced traumatic spondylolisthesis affecting the second cervical vertebra (C2). This condition involves the forward slippage of C2 over C3 due to a traumatic injury, without complete displacement, and the healing process is prolonged.

Use this code for subsequent visits where the patient is still receiving care for the C2 spondylolisthesis, and the fracture healing is not progressing as expected. Documentation should clearly indicate a traumatic origin, nondisplaced nature, involvement of C2, and explicit mention of delayed healing.

• Ensure documentation specifies "subsequent encounter" and "delayed healing" to justify this specific seventh character.
• Distinguish from nonunion (S12.151K) or routine healing (S12.151D) based on physician assessment.
• Always sequence this code after the primary injury code if other conditions are being treated concurrently.