S90-S99

Non-Billable
ChapterS00–T88
Rankblock
Official Description

Injuries to the ankle and foot (S90-S99)

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)
  • fracture of ankle and malleolus (S82.-)
  • frostbite (T33-T34)
  • insect bite or sting, venomous (T63.4)

Clinical Hierarchy

CH19Injury, poisoning and certain other consequences of external causes (S00-T88)
S90-S99Injuries to the ankle and foot (S90-S99)
S90Superficial injury of ankle, foot and toes
S91Open wound of ankle, foot and toes
S92Fracture of foot and toe, except ankle
S93Dislocation and sprain of joints and ligaments at ankle, foot and toe level
S94Injury of nerves at ankle and foot level
S95Injury of blood vessels at ankle and foot level
S96Injury of muscle and tendon at ankle and foot level
S97Crushing injury of ankle and foot
S98Traumatic amputation of ankle and foot
S99Other and unspecified injuries of ankle and foot

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to S90-S99:

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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