ICD-10 Diagnosis Code S99

Other and unspecified injuries of ankle and foot

Diagnosis Code S99

ICD-10: S99
Short Description: Other and unspecified injuries of ankle and foot
Long Description: Other and unspecified injuries of ankle and foot
This is the 2017 version of the ICD-10-CM diagnosis code S99

Not Valid for Submission
The code S99 is a "header" and not valid for submission for HIPAA-covered transactions.

Code Classification
  • Injury, poisoning and certain other consequences of external causes (S00–T98)
    • Injuries to the ankle and foot (S90-S99)
      • Other and unspecified injuries of ankle and foot (S99)

Information for Patients


Ankle Injuries and Disorders

Your ankle bone and the ends of your two lower leg bones make up the ankle joint. Your ligaments, which connect bones to one another, stabilize and support it. Your muscles and tendons move it.

The most common ankle problems are sprains and fractures. A sprain is an injury to the ligaments. It may take a few weeks to many months to heal completely. A fracture is a break in a bone. You can also injure other parts of the ankle such as tendons, which join muscles to bone, and cartilage, which cushions your joints. Ankle sprains and fractures are common sports injuries.

  • Ankle arthroscopy (Medical Encyclopedia)
  • Ankle fracture - aftercare (Medical Encyclopedia)
  • Ankle pain (Medical Encyclopedia)
  • Ankle replacement (Medical Encyclopedia)
  • Ankle sprain - aftercare (Medical Encyclopedia)
  • Foot, leg, and ankle swelling (Medical Encyclopedia)


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Foot Injuries and Disorders

Each of your feet has 26 bones, 33 joints, and more than 100 tendons, muscles, and ligaments. No wonder a lot of things can go wrong. Here are a few common problems:

  • Bunions - hard, painful bumps on the big toe joint
  • Corns and calluses - thickened skin from friction or pressure
  • Plantar warts - warts on the soles of your feet
  • Fallen arches - also called flat feet

Ill-fitting shoes often cause these problems. Aging and being overweight also increase your chances of having foot problems.

  • Claw foot (Medical Encyclopedia)
  • Clubfoot (Medical Encyclopedia)
  • Common peroneal nerve dysfunction (Medical Encyclopedia)
  • Extremity x-ray (Medical Encyclopedia)
  • Flat feet (Medical Encyclopedia)
  • Foot pain (Medical Encyclopedia)
  • Foot sprain - aftercare (Medical Encyclopedia)
  • Foot, leg, and ankle swelling (Medical Encyclopedia)
  • Hand or foot spasms (Medical Encyclopedia)
  • High arch (Medical Encyclopedia)
  • Metatarsal fracture (acute) - aftercare (Medical Encyclopedia)
  • Metatarsal stress fractures - aftercare (Medical Encyclopedia)
  • Metatarsus adductus (Medical Encyclopedia)
  • Morton neuroma (Medical Encyclopedia)


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