S12.231K – Unspecified traumatic nondisplaced spondylolisthesis of third cervical vertebra, subsequent encounter for fracture with nonunion
ICD-10-CM 2027 diagnosis code · Injuries to the neck
- Code
S12.231K(claims format:S12231K)- Description
- Unspecified traumatic nondisplaced spondylolisthesis of third cervical vertebra, subsequent encounter for fracture with nonunion
- Short description
- Unsp traum nondisp spondylolysis of 3rd cervcal vert, 7thK
- Billable
- Yes – valid for HIPAA-covered transactions
- Valid for
- Dates of service October 1, 2026 – September 30, 2027 (FY2027)
- Chapter
- 19. Injury, poisoning and certain other consequences of external causes (S00-T88)
- Block
- S10-S19 Injuries to the neck
- Parent codes
- S12 › S12.2 › S12.23 › S12.231
7th character values
Codes in this category need a 7th character to describe the encounter or episode of care.
| Character | Meaning |
|---|---|
A | initial encounter for closed fracture |
B | initial encounter for open fracture |
D | subsequent encounter for fracture with routine healing |
G | subsequent encounter for fracture with delayed healing |
K | subsequent encounter for fracture with nonunion |
S | sequela |
Notes inherited from parent codes
Instructional notes at a category or block level apply to every code below it.
S12 – Fracture of cervical vertebra and other parts of neck
- fracture of cervical neural arch
- fracture of cervical spine
- fracture of cervical spinous process
- fracture of cervical transverse process
- fracture of cervical vertebral arch
- fracture of neck
- A fracture not indicated as displaced or nondisplaced should be coded to displaced
- A fracture not indicated as open or closed should be coded to closed
Block S10-S19
- injuries of nape
- injuries of supraclavicular region
- injuries of throat
Related codes in S12.231
- S12.231A – Unspecified traumatic nondisplaced spondylolisthesis of third cervical vertebra, initial encounter for closed fractureBillable
- S12.231B – Unspecified traumatic nondisplaced spondylolisthesis of third cervical vertebra, initial encounter for open fractureBillable
- S12.231D – Unspecified traumatic nondisplaced spondylolisthesis of third cervical vertebra, subsequent encounter for fracture with routine healingBillable
- S12.231G – Unspecified traumatic nondisplaced spondylolisthesis of third cervical vertebra, subsequent encounter for fracture with delayed healingBillable
- S12.231S – Unspecified traumatic nondisplaced spondylolisthesis of third cervical vertebra, sequelaBillable
Frequently asked questions
What is ICD-10 code S12.231K?
S12.231K is the ICD-10-CM code for unspecified traumatic nondisplaced spondylolisthesis of third cervical vertebra, subsequent encounter for fracture with nonunion, in the block S10-S19 (Injuries to the neck).
Is S12.231K a billable code?
Yes. S12.231K is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.
What category does S12.231K belong to?
It belongs to category S12 – Fracture of cervical vertebra and other parts of neck.
Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.