ICD10Check
CheckerBrowseOpen

S83.4

⚠ Non-billable (Header)

Sprain of collateral ligament of knee

Injury, poisoning and certain other consequences of external causes (S00-T88)

⚠️ This is a category header code — not billable. Use a more specific child code below.

Check This Code

⚠️ Excludes2

inherited from S83

Rules from parent category 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.-)

Child Codes (3)

S83.40Sprain of unspecified collateral ligament of kneeS83.41Sprain of medial collateral ligament of kneeS83.42Sprain of lateral collateral ligament of knee

🧪 Validate Combinations

Add S83.4 to the Excludes Checker to validate against your full code list.

Open in Checker →

Code Information

CodeS83.4
BillableNo — Header code
ParentS83
CategoryInjury, poisoning and certain other consequences of external causes (S00-T88)
Excludes10 rule(s)
Excludes27 note(s)
Child codes3

Data Source

CMS ICD-10-CM 2026 Tabular List

Updated October 1, 2025 (FY2026)