Unsp traum nondisp spondylolysis of 4th cervcal vert, 7thK

Unspecified traumatic nondisplaced spondylolisthesis of fourth cervical vertebra, subsequent encounter for fracture with nonunion

📋Clinical Description

This code describes a non-displaced traumatic spondylolisthesis of the C4 vertebra where the specific type of spondylolisthesis is not documented. The injury is a fracture that has failed to heal properly, and this encounter is for follow-up care related to that nonunion.

🎯When to Use

Use this code for subsequent encounters when a patient is receiving treatment for a C4 vertebral fracture that has resulted in a non-displaced, traumatic spondylolisthesis, and the fracture has not united. Documentation must specify "unspecified traumatic," "nondisplaced," "C4 vertebra," and "nonunion" for a subsequent encounter.

💡Coding Tips

Ensure documentation clearly states "nonunion" for the 7th character 'K'.
Verify the specific cervical vertebra (C4 in this case) and that the spondylolisthesis is traumatic and nondisplaced.
Distinguish from initial encounters or encounters for routine healing (7th character A, D, G, P, S).

AI-generated reference — verify against official guidelines

Code Hierarchy

▲S12.331Unsp traum nondisp spondylolysis of fourth cervcal vertebra

S12.331K(current)

Crosswalks

733.82ApproxICD-9

Same Category

S12Fracture of cervical vertebra and other parts of neck S12.0Fracture of first cervical vertebra S12.00Unspecified fracture of first cervical vertebra S12.000Unspecified displaced fracture of first cervical vertebra S12.000A