S83.1

S83.1: Subluxation and dislocation of knee

Non-billable headerICD-10-CM

S83.1 is a non-billable header ICD-10-CM code for subluxation and dislocation of knee. 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 S83

A: initial encounter
D: subsequent encounter
S: sequela

Excludes2: not included here, but may coexist

The excluded condition is not part of this code, but a patient can have both. You may code both.

instability of knee prosthesis (T84.022, T84.023)

Excludes2 inherited from the categories above S83.1

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

Written on S83: Dislocation and sprain of joints and ligaments of knee

derangement of patella (M22.0-M22.3)
injury of patellar ligament (tendon) (S76.1-)
internal derangement of knee (M23.-)
old dislocation of knee (M24.36)
pathological dislocation of knee (M24.36)
recurrent dislocation of knee (M22.0)
strain of muscle, fascia and tendon of lower leg (S86.-)

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 S83.1

6 child codes. Green means billable.