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

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

📋Clinical Description

This code describes a traumatic, nondisplaced forward slippage of the fourth cervical vertebra (C4) over the fifth, where the specific type of spondylolisthesis is not documented. This particular encounter is for ongoing management of the fracture, specifically addressing delayed healing.

🎯When to Use

Use this code for a patient presenting for follow-up care of a C4 traumatic spondylolisthesis where the initial fracture is healing slower than expected. Documentation should clearly state "delayed healing" and confirm the traumatic, nondisplaced nature of the spondylolisthesis, with the specific type unspecified.

💡Coding Tips

Ensure documentation specifies "delayed healing" for the subsequent encounter.
Distinguish from nonunion (M84.2-) or malunion (M84.1-) which have separate codes.
Verify the cervical level (C4) and the traumatic etiology; non-traumatic spondylolisthesis codes are found in the M43 category.

AI-generated reference — verify against official guidelines

Code Hierarchy

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

S12.331G(current)

Crosswalks

V54.17ApproxICD-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