S12.400B

Unspecified displaced fracture of fifth cervical vertebra, initial encounter for open fracture

Billable FY2026 2025-10-01 → 2026-09-30

This is the unspecified option. 5 more specific codes sit alongside it. Worth checking whether the documentation supports one of them.

Exclusions 9 never code together

S10-S19block

Excludes2

burns and corrosions (T20-T32)T20-T32
effects of foreign body in esophagus (T18.1)T18.1
effects of foreign body in larynx (T17.3)T17.3
effects of foreign body in pharynx (T17.2)T17.2
effects of foreign body in trachea (T17.4)T17.4
frostbite (T33-T34)T33-T34
insect bite or sting, venomous (T63.4)T63.4

S00-T88chapter

Excludes2

birth trauma (P10-P15)P10-P15
obstetric trauma (O70-O71)O70-O71

Excludes2 — not included here, but the patient may have both. Code both when documented.

7th character 6

A initial encounter for closed fracture

B initial encounter for open fracture this code

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

Instructional notes 15

S12code

Notes

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

Includes

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

Code first

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

S10-S19block

Includes

injuries of nape
injuries of supraclavicular region
injuries of throat

S00-T88chapter

Notes

Use secondary code(s) from Chapter 20, External causes of morbidity, to indicate cause of injury. Codes within the T section that include the external cause do not require an additional external cause code
The chapter uses the S-section for coding different types of injuries related to single body regions and the T-section to cover injuries to unspecified body regions as well as poisoning and certain other consequences of external causes.

Use additional code

code to identify any retained foreign body, if applicable (Z18.-)Z18.-

Index entries leading here 1 filed at S12.400

The index files this at S12.400. The tabular extends it — laterality, staging, or the 7th character — so these entries lead to the family rather than to S12.400B exactly.

Fracture, traumatic (abduction) (adduction) (separation) T14.8
- neck S12.9
  - cervical vertebra S12.9
    - fifth (displaced) S12.400

Alongside this code 5 same parent — S12.400

S12.400A Unsp disp fx of fifth cervical vertebra, init for clos fx S12.400D Unsp disp fx of fifth cervcal vert, subs for fx w routn heal S12.400G Unsp disp fx of fifth cervcal vert, subs for fx w delay heal S12.400K Unsp disp fx of fifth cervcal vert, subs for fx w nonunion S12.400S Unspecified disp fx of fifth cervical vertebra, sequela

Additional references

AHA Coding Clinic® Licence required

Official coding advice for this code. Published by the American Hospital Association. Not included in this installation.

Risk adjustment

CMS22HCC169 CMS28HCC401 ESRD21HCC169 ESRD24HCC169

Presence is a property of the code. Untick a model to hide it everywhere.

This code

Billable: yes
Code set: FY2026
Parent: S12.400
Block: S10-S19
Siblings: 5

Present FY2024–FY2027.