S12.331Unspecified traumatic nondisplaced spondylolisthesis of fourth cervical vertebra

S12.331 is the ICD-10-CM diagnosis code for unspecified traumatic nondisplaced spondylolisthesis of fourth cervical vertebra. It belongs to category S12 (fracture of cervical vertebra and other parts of neck), block S10-S19 (injuries to the neck) and chapter 19 (injury, poisoning and certain other consequences of external causes). It is a header code, so it can't be reported by itself; one of its 6 subcodes must be used instead.

Within S12.33 (unspecified traumatic spondylolisthesis of fourth cervical vertebra), S12.331 is specifically for unspecified traumatic nondisplaced spondylolisthesis of fourth cervical vertebra. Related codes cover displaced spondylolisthesis of fourth cervical vertebra (S12.330).

Codes in this range require a 7th character: A for initial encounter for closed fracture, B for initial encounter for open fracture, D for subsequent encounter for fracture with routine healing, G for subsequent encounter for fracture with delayed healing, K for subsequent encounter for fracture with nonunion and S for sequela. Use placeholder "X" characters to fill any empty positions before the 7th character.

Code first: any associated cervical spinal cord injury (S14.0, S14.1-).

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.