S80-S89

Non-Billable
ChapterS00–T88
Rankblock
Official Description

Injuries to the knee and lower leg (S80-S89)

Metadata & Insights
  • •2026 ICD-10-CM Edition - Effective October 1, 2025.
  • •Non-billable category (requires more specific sub-code).
  • •Chapter 19: Injury, Poisoning and Certain Other Consequences of External Causes (S00-T88).

CH19 Parent Instructions

Excludes2(Not included here)
Use Additional Code
  • code to identify any retained foreign body, if applicable (Z18.-)

Instructional Notes

Excludes2(Not included here)
  • burns and corrosions (T20-T32)
  • frostbite (T33-T34)
  • injuries of ankle and foot, except fracture of ankle and malleolus (S90-S99)
  • insect bite or sting, venomous (T63.4)

Clinical Hierarchy

CH19Injury, poisoning and certain other consequences of external causes (S00-T88)
S80-S89Injuries to the knee and lower leg (S80-S89)
S80Superficial injury of knee and lower leg
S81Open wound of knee and lower leg
S82Fracture of lower leg, including ankle
S83Dislocation and sprain of joints and ligaments of knee
S84Injury of nerves at lower leg level
S85Injury of blood vessels at lower leg level
S86Injury of muscle, fascia and tendon at lower leg level
S87Crushing injury of lower leg
S88Traumatic amputation of lower leg
S89Other and unspecified injuries of lower leg

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to S80-S89:

chapterCH19
Injury, poisoning and certain other consequences of external causes (S00-T88)
View context instructions

MS-DRG Classification

2026

No direct MS-DRG triggers identified.

Cross Reference

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