S13.18

S13.18: Subluxation and dislocation of C7/T1 cervical vertebrae

Non-billable headerICD-10-CM

S13.18 is a non-billable header ICD-10-CM code for subluxation and dislocation of c7/t1 cervical vertebrae. It cannot be billed on its own: choose one of the more specific child codes below. This code also requires a 7th character before it is complete.

This code requires a 7th character

The appropriate 7th character is to be added to each code from category S13

A: initial encounter
D: subsequent encounter
S: sequela

Excludes2 inherited from the categories above S13.18

Not part of this code, but both may be coded when both are present.

Written on S13.1: Subluxation and dislocation of cervical vertebrae

fracture of cervical vertebrae (S12.0-S12.3-)

Written on S13: Dislocation and sprain of joints and ligaments at neck level

strain of muscle or tendon at neck level (S16.1)

Risk adjustment

No CMS-HCC V28 category: this code does not change a RAF score.

Code history

Unchanged in every release from FY2024 to FY2027.

Code to one of these instead S13.18

2 child codes. Green means billable.